SCIENTIFIC ABSTRACT LOBL, K. - LOBOB, G. A.

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December 31, 1967
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SCIENTIFIC ABSTRACT
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815 Z/032/60/081OA12/003/009 E073/E335 Development and Investigation of the Properties of the Type CrMnN Austenitic Steel for Castings Table 6: C Mn Si P S ___Nj N Specifi- cation max. 13.5 max. max. max. 1.7 16.5 0.3 0.3 0.20 0.12 to, 1.0 0.045 0.030 to to to to 15 17.5 0.45 0.5 0.25 20 oo6 0.12 14.0 1.29 0.036 0.007 1.68 V.200.23 0.37 0.23 There are 11 figures, 8 tables and 17 referencesg 8 Czech and 9 non-Czech. ASSOCIATIONS: SVUNT, Prague (L8bl, s4ustek) VOHX, Prague (11'bek) y Card 7/7 Z/034/61/000/001/002/021 EO?3/E535 AUTHORS: f6bl, Karel, Engineer and Hybek, Karel, gineer .............. TITLE: Re-smelting of Scrap CrNiMnN Austenitic Steels Hutnickg PERIODICAL: listy, 1961, No.1, PP.13-19 TEXT: Sufficient experience is now available on the use of 18/8 type CrNi steel scrap. New problems arose in conjunction with the development of new low nickel content economy steels. As a result of efforts over many years, nickel-tree austenitic steels Mnl7Cr7Ti (6SN 17481) and also Mnl?CrlOV (CSN N? 482), Mnl7Cr7MoV (6SN N7 483) have been developed. From 1957 onwards, much attention has been paid in Czec-hoslovakia to substituting austenitic stainless CrNi 18/8 steels by steels with a higher Mn content plus a nitrogen content', as for instance the steel Crl8MnlONi4N (6SN 17460) and also type Crl6Mnl5N (6SN N? 470), which is to be introduced shortly. In both cases the manganese content is between 10 and 18%, which influences appreciably the technology of smelting charges Pontaining such scrap. The basic consequences caused by the difference in the chemical behaviour of the individual elements are reviewed. First, a theoretical analysis is given of the phenomena taking place during the refining by means of oxygen. Particular attention Card 1/5 Z/034/61/000/001/002/021 EO?3/E535 Re-smelting of Scrap CrNiMnN Austenitic Steels is paid to calculating the reaction heat. The theoretical results arrived at confirmed the practical results obtained by Pachaly (Ref.10) on processing 100% scrap of the steel Mnl9CrIONil.5. The slag formation was controlled in such a way as to prevent develop- ment of manganese silicates, i.e. prior to blow;ng oxygen the melting slag was drawn off and new6 purely lime ilag was prepared. Oxygen blowing was started at 1635 C and the refliing proceeded at a speed of 0.02% C/min down to 0.06% C, Following that., the slag was reduced by granular Al and drawn off. The bath temperature increased to 1945 C. The Or utilisation was 96%, that of Mn was 66%. This experimental melt is dealt with in another paper (Ref.11) but some of the relevant data are contained in Table 4. Experiments on practical methods of processing scrap of these high Mn content economy steels h,~Lve been going on since 1955. Some of the data are discussed, SVUMT, jointly with the gmeral works, Brno, started experiments in 1959 on solving the proble-m-UT-u-s-117-g internal scrap of CrNiMnN and CrMnN stainless austenitic steels. Some of the results obtained in three experimental heats are described. There was particular interest in the behaviour of nitrogen. It was Card 2/5 Z/034/61/000/001/002/021 E073/E535 Re-smelting of Scrap CrNiMnN Austenitic, found that,after an initial drop, the nitrogen content remains unchanged. After evaluating the results of the first oxygen blast re-smelting of the CrNiMn steel scrap., two further melts were proceeded with in a 1-ton capacity are furnace. The charge consisted of only 50% alloy scrap, the rest was carbon steel scrap. More intensive oxygen blowing was applied, more attention was paid to the reduction of the oxiding slag and the high temperatures at the end of blowing in oxygen were utilised for rapid smelting of further alloying additions, primarily ferrochromium, as a result of which a quick drop in the temperature of the bath and the lining to the normal. value was achieved. The results of this heat are tabulated. The following conclusions are arrived at: 1. 50 to 60% alloy scrap can be used in the charge. 2. The smelting should be carried out in such a way that,prior to blowing in oxygen, the melt should contain 0,,25 to O~30% C, 3. Prior to blowing oxygen., the -,lag shouid be prepared with lime in such a way as to avoid formation of manganosilicates, 4. Blowing of oxygen should be started at the highest possible temperatures and should be continued without interruption and with Card 3/5 Z/034/61/000/001/002/021 E073/E5315 Re-smelting of Scrap CrNiMnN Austenitic Steels the maximum permissible intensity. 5. The bath should be decarburized only to the .5pecific. upper 1-imit of the carbon content. 6. After termination of the oxidation period, there should be a reduction of the slag which contains metal oxides and then the bath and the lining of the furnace should be cooled as quickly as possible by throwing in lump scrap or alloying additions. 7. After reduction, the slag should be drawn off as quickly as possible and the melt should be terminated in accordance with the specified requirements. Some Czech works have already tried re-smelting of such scrap in open hearth furnaces but this was done exclusively in the manufacture of steel intended for further shaping operations, In the described experimental melts, monitoring of the temperature was not entirely satisfactory due to the lack of suitable equipment for measuring the bath temperature. Also it was not possible to weigh the metal in the slag durin the process of smelting. Acknowledgments are expressed to Vl. kteffek and Engineer P. Fremunt for practical Card 4/5 Z/034/61/000/001/002/021 E073/E535 Re-smelting of Scrap CrNiMnN Austenitic Steels assistance and to the Director of SVUMT, Engineer Mir. Svoboda, for his interest in the problem of introducing economy nitrogen- containing stainless austenitic steels for producing castings. There are 18 tables, 1 figure and 14 references: 6 Czech, 3 German V1 and 5 English. ASSOCIATIONS: SVUMT, Prague (Lhl) and V6H9, Prague H~bek) SUBMITTED: October 22, 1960 Card 5/5 AUTHORS: TITLE: PERIODICAL: 24244 Z/034/61/000/008/001/oO5 E073/E335 Vyklicky', miloslav, LBbl, Karel, Kabrhel, Adolf, Tdma, flanuji, 15fhal, Vladimf-r PraUk, Milan Influence of Molybdenum and Copper on the Properties of Stainless Chromium Hutnickof listy, 1961, No. 8, PP- 553 - 560 TEXT: According to data published in the literature (Ref. 2 - Copper in Cast Steel and Iron. Copper Development Association, London), high-alloy chromium steels containing 2-30'c S! and 1.5-20,' Cu have a high resistance to alum and are extensively used in the food-processing industry. An increased C content in chromium steels reduces their resistance~ to corrosion, particularly after unsuitable heat-treatment. However, low-carbon chromium steels cause difficultiegin the manufacture of castings of complex shapes. Therefore, higher C contents are used and the unfavourable influence of the C content is compensated by adding Cu. Although the effect of Mo on chromium steels is Imown, the authors are not aware of any published Information on the combined influence of Cu and Mo Card 1/8 24144 Z/034/61/000/008/001/005 Influence of Molybdenum E073/E335 on the properties of chromium steels. This is in spite of the fact that such steels are being manufactured, for instance the Czech steel Poldi-AKlBC (chemical composition: 0.120% C, 0.50% Nn, 0.251,',, Si, 16.151;" Cr, 0.20101 Mo and 1.75% Cu) and the ferritic chromium steel for use in the chemical industry, containing 0.6-0.8o,.' C,max. 0.7694 Mn, max. 2% Si, 28.0 - 30-00% Cr, 2.0 - 2-5 /0 Ni, 2.0 - 2-50% Mo and 2.0% Cu. The authors considered it interesting to investigate the influence of Cu and Mo on the properties of chromium steel and this paper contains the results of these investigations. A total of 11 heats was produced with chemical compositions varying between the following limits: C 0.6 - 0.11%; Cu 0 - 6.1100; Cr 14-58 - 26.66j' and Mo 0 - 3-910%. O~he heats were produced in n 20-kg high-frequency furnace, using as a:charge:1ow-carbon steol, low-carbon ferrochroinium, low-carbon ferromolybdenum and cop,,..or. Of the mechanical properties only the hardness was -easured. In agreement with data published in the literature, heats trith higher copper contents showed a higher hardness, both Cnrd 2/8 242hh Z/034/61/000/008/001/005 Influence of Molybdenum .... E073/E335, in the as-cast and in the annealed states; metallographic tests showed that addition or Cu brought about pronounced structural changes. The corrosion tests were carrIed out in a number of corrosive media, subdivided into the following groups: A. Media with free 50 2 1. H2SO 3; 2 0% ;20 OC 2. NaHSO 3; 5%; 20 OC B. Organic oxides 3. lactic acid; 4. oxalic acid; 5. citric acid; 6. tartaric acid; 7. acetic acid; 10%; 20 0 109/; 80 0c 0 10%; 80 C saturated solution; 80 'C concentrated; 80 0c Card 3/8 Influence of Molybdenum .... 241J,h Z/034/61/000/ooBToOl/005 E073/E335 C. Inorganic non-oxiding acids 8. hydrochloric acid; 8%; 20 OC 9. phosphoric acid; 650,01; 80 OC D. Inorganic Oxiding acids 10. nitric acid; 65%; 80 Oc A detailed analysis allowed grouping the time dependence of the weight loss due to corrosion into three basic groups: linear dependence (in hydr8chloric acid and, in some cases, also in nitric acid at 80 C); parabolic dependence with steepness increasing with time (NaHSO 3 solution) and, finally, corrosion rate decreasing with time and characterised by a curve which flattens out. The corrosion tests have shown that steel containing 25% Cr, 2% Mo and 2% Cu had the highest resistance to corrosion, which almost equalled the Czech steel 6SN 17241. This type of steel was not investigated in the group of the 17%1 chromium steels. In the latter steel, Card 4/8 242" Z/034/61/000/008/001/005 Influence of Molybdenum o..o E073/E335 Mo improved the resistance to corrosion in solutions with free so2 , whilst Cu improved the resistance to corrosion in organic acids. On the basis of laboratory results, SONP Kladno produced two 50-kg heats In a high-frequency furnace with chemical compositions which proved the most favourable in the laboratory tests. The compositions of these heats (in %) were qS follows: Heat C Mn Si P S Cr Mo CU A 3829 0-13 0-53 0,37 0.019 0.021 15-52 2.05 2.01 B 3830 OolO 0-54 0-30 o.o26 0.017 24o75 1.75 1o95 o The ingots from both heats were forged into 250 x 600 x 20 mm blanks and then rolled down to 1 mm thick sheet. These hot- rolled sheets were then used in mechanical and corrosion tests and in weldability testso The most favourable heat-treatment for these steels proved to be the following: Card 5/8 24144 Z/034/61/000/008/001/005 Influence of Molybdenum E073/E335 Heat A ... 800 0C/0.5 firs/air it B ... 900 OC/0-5 hrs/air. The mechanical properties of thus heat-treated steels do not differ substantiall from the properties of semiferritic steels containing 170,0' Cr (9SN 17041). After this heat-treatment, both heats proved satisfactory in double-bending tests; in Ericlisen tests both heats achieved the value of 7.9 mm. Welding tests were carried out by are-welding in an argon atmosphere; the weldability of Heat A was better than that of Heat B. Potentiostatic polarisation curves were determined to obtain information on the corrosion behaviour of the steels. The following conclusions were reached: Additions of 29. Mo and 20" Cu proved the most suitable. The resistance-to-corrosion of steels with 17% Cr, 20.0' Mo and 2% Cu is higher than the resistance-to-corrosion of the same type Of steel without Mo and Cu. Very good results were obtained with steel containing 2556 Cr and an addition of Mo and Cu which, for most corrosive CArd 6/8 24144 z/o34/6i/o6o/oO8/OOl/OO5 Influence of Molybdenum E073/9335 media, will have the same resistance-to-corrdsion as the austenitic CrNi steel CSN 17241. According to the achieved results, the steel with the lower Cr content can be used for lesslagressive corrosion media and in cases in which the stee SN 17041 cannot be used owing to its lower resistance-to- corrosion or its poor weldabillty. Steel with a higher Cr ontent (Heat B) can be used as a substitute for the steel N 17241 but the plasticity and weldability of this material H are not as good as those of. steel '6SN 17241. There are 17 figures, 7 tables and 12 references: 6 Czech and 6 non-Czech. The four English-language references quoted are: Ref. 1 - Loring - Metals Handbook, pp. 462 - .465; Ref. 2 - (quoted in text); Ref. 3 - Saklatwalla - Dammler, Trans. Am. Soc. Stbel. Treat. 15, 1929; Ref. 4 - Daniloff The Alloys of Iron and Copper. New York and London, 1934. Card 7/8 241U Z/034/61/000/008/001/005 influence of Molybdenum .... B073/E335 ASSOCIATIONS: Sdtnf vy'zkumn'y G'stav materia'lu a technologie v Praze (State Research Institute for Materials and Technology, Prague) StStlif vkzkumn~ fistav ochrany materiglu G.V. Akimova v Praze (G.V. Akimov State Research Institute for the Protection of Materials, Prague) SUBMITTED: November 28, 1960 Card 8/8 Z/032/6i/oil/005/003/008 E073/E335 AUTHOR; et al, _2 J_ TITLE: Investigation of Formed and Cast Austenitic CrNi, Acid-resistant and Refractory Steels for the Chemical and Power-generation Industries PERIODICAL: Strojfrenstvl, 1961, Vol. 11, No. 5, P. 396 TEXT: In the first part of the report the results are given of creep bending tests of these steels at elevated temperatures and the results of investigation of the resistance to thermal shocks and erosion. The second part deals with stainless steels of the type Crl8Ni8Mo2Cu3 and Cr2lNil8Mo3Cu4, which have good forming properties in the hot and cold states and are suitable for use in the chemical industry. The last part deals with the structural stability of CrNi refractory steels for castings, particularly with regard to differing contents of carbon and nickel. Report No. SVWIT Z-60-814/1, II, III, Prague, 196o. (Abstractor's note: this is a complete translation.) Card 1/1 Z/046/61/000/004/00'//009 D007/D102 AUTHORt Lbblv Karelj Engincer, Candidate of Sciences TITLE. Cast modifications of new high-temperature steels and the cuTrent development state of new materials for castings to be operated at high temperatures PERIODICAL: Zvaracsky/ sborn~k, no. 4, 1961, 417-433 TEXT: The article describes -.-he chemical composition, properties, and weldability of ARM cast steels developed by the SVUMT for the temperatuva range of 550 - 7000C, The ARM 10 - 12 steel types are modified IlAr stain- less cast steels, suitable for temperatures of 550 - 600n-C, while types ARM 1-2 and ARM 3-6 are MnCr and CrNi austenitic steels respectively, 'suitable for temperatures above 6000C. The ARM 10 and 11 are both CrMoV steels, the former suitable for larger, thick-walled castings, the latter (with a hiE7her V1 Mo content) for medium-size and small castings., The ARM 12 is a CrCoWV steel which with3tands short exposures to temperatures up to 6250C, espe- cially in the form of small castings such as turbine buckets. It is simi- Card 1/3 Gy Z/046/61/000/004/00=)/009 DOOVD102 Cast modificationsof new lar to the T 59 CrWV steel, developed by the Leninovy za/vody (Lenin Works) in Plzen. The ARIA 1 (.MnCr(Ti) 17/7) steel can be operated for longer periods at 6200C only, the ARM 2 (MnCrV 1.7/10) steel at 6500C, The ARM 3 tPoldi AKVSB-L) steel is qtructurally Yery stable, but less heat'-!"az~!tsn' the ARM 4(similar to the Soviet LA 4 15/5 steel) withstands long-teim ex- p-.)sure o 6500C and has a very high notch toughness- However, it con- tains )5~ of the scarce Co. Effort's to save Co resulted in the development of the ARM 5 steel (similar to the Soviet TsZh 8 !6/13 steel with W, Mo, and V addition3. stabilized by Vb), and the ARM 6 steel which has a better heat resistance and weldability due to its higher (6%) W content, Welda- b-i-11ty tests with CrNi steels were made according to the method developed by K,V. Lyubovskiy. It was found that CzechoSIOTak E 891 and E 391 elec- Trodes produce welded joints which are sufficiently heat-resistant at oper- ating temperatures of 625 - 6500C, However, some structural elements, es- pecially the ferrite content, must be closely controlled. According to practical experience, the ferrite content in the first bead should range from 2 - 5~lo when E 391 eloctrodea are used. J. Koutsk~, V. Pilous, Card 2/3 Z/046j6l/OOO/OO4/005/009 D007/DlO2 cast modificationsof new .... R. Pokor4 and F~ Richter are the personalities mentioned. There are 8 figures, 10 tables and 16 references; 13 Soviet-bloc and 3 non-Soviet-b-loc., The reference to the English-language publication reads as follows: R.H. Canghey, W,,G. Benz Jr.,, Tran ASME A, October 1960~ (Technical Editor: Doctor L. Herman cf the I, Bratislava). ASSOCIATION: SVUMT Praha (SVU"MT Prague). VX Card 3/3 Z/04 61/000/004/009/009 D007YD102 AUTHORSa Vyklicky, It., Engineer, and Ldbl, K., Engineer TITLE; A (~.ontribution to the 7eldability problem of inexpensive cbrom4-nickel stainlcoq,,stoeli -,-ritW-twozpbaoe -R+ructur~- PERIODICAL~ ZvAra~skl- sbormlek, no, 4, 1961, 496-503 TEXTs This paper listj mechanical propurties of N.1-3aving, stabilized, stainless, austenitic-ferritic Cr2lNi5Ti and CrMi.AWTi steels vhi~:h were developed in th- USSH to replace the classical CrNi and Ti-stabilized steels used for cherica.L equipment etc. Since tVse steel types can also replace the domestic CSN 17 246 (Poldi AKVS) and CSN 17 347 (Poldi AJKV ExtrgSs) steels, detailed mechanical and weldability tests wire made in the SR. It was found that mechanical properties of these two-phase steels are strong- ly dependent on the Hi content, and that plastic properties improve with V increasing Ni content. Compared with the classical Crl8Ni8Ti and CrlHi9- MoM steels, the ultimate strength and yield points are considerably higher, ductility and notch toughness are somewhat lower, and anticorrosive proper- ties are about the same. Weldine tests were made on l-, 3-, and 20-mm Card 1/2 z/046/61/00C/004/C~9/0C-9 D007/DlO2 A contribution to the ..... sheets by the "arkatom" method (without filler material) or using E 391 electrQdes, and mechanical properties of the weld metal were determined. Again, it was found that steels with higher Ni cuntent have better ductility values, while steels with higher Mo content have somewhat lower ductilities, due to a zone of hiL-her Cr-ferrite content in the weld metal. These differ- ences in ductility and Erichsen cupping values are most likely attributable to the total amount of austenite- and ferrite-,forming elements in the heat, 1~ e. heats with hibrber contents of theae additions (higher r-phase con- tent) also have better ductility and cupping properties. There nre 2 fig-arcs, 5 tables, and 2 S .Ioviet-bloc references. (Technical Editor: Engineer J. Zeke of the VUZ Bratislava). ASSOCIATION: SVUMT Praha (3V&T Pra6uc).. Card 2,12 Z/032/62/o.l2/oo4/oo6/oO7 0 E073/P.335 AUTHORS: L13bl, K. and Vyklicky, M. TITLE: Investigation of chromium and chromiun-nickel stainless stools tirith a low carbon content (belour o.o6e,01 C) PEPZIODICAL: Strojirenstvi, v.12, no. 4, 1962, 317 T EXT : The report deals with the technical aspect of :-,ianufacture, particularly using acid-resistant chromium and c:iromium-nickel steels with low (0.06o,,',) and Very low (down to 0-03p,') carbon content in the chemical and food industries. The state of development of the manufacture and research of these steels outside Czechoslovakia has been investigated and laboratory and works testing of the properties of these steels has started. Base material as well as welded material and the corrosion properties have been studied and tests were carried out an increasing the,sensitivity to inter- crystalline corrosion. Tho test mehtod has been developed in such a way as to permit comparison with steels having usual carbon contents. The obtained results are evaluated both Card 1/2 Investigation of .... Z/032/62/012/Oo4/oo6/oO7 E073/E335 frovi the technical and economical pointa of view and the report lists possibilities of application of these steels in the Czechoslovak industry. Resea.i7ch Report Z-61-991, SMIT, Praguel 1961. .Abstracter's note: this is a complete translation.] Card 2/2 Z/032/62/012/005/oO/oO E073/Z535 AUTHORS: and Vyklicky, M. TITLE: Economy stainless chromium-nickel steel with a two- phase (austenitic-ferritic) structure PORIODICAL: Strojirenstvi, v.12, no.5, 1962, 395 TEXT: Technical report for engineering and chemical works containing information on new types of economy stainless Cr-Ni steels with possible additions of molybdenum for increasing the resistance to corrosion in the active state. For the chenical and food industries this steel can be stabilized with titanium . These steels are intended primarily as a substitute for the scarce austenitic steels 6SN 17 246 and 17 347. They can be welded using the same technology and additional materials as for classical austenitic steels. They have a two-phase, i.e. austenitic-ferritic, structure and their yield point is "twice as high". The steels are resistant to inter- crystallite corrosion. Steels with molybdenum can be used up to 3000C and the steels without molybdenum up to 400*C. By Card 1/2 Economy stainless chromium-nickel ... Z/032/62/012/005/004/004 E073/E535 speedy introduction of these steels it will be possible to achieve considerable savings of nickel. Research Report Z-61-930, SV&IT, Prague, 1961 T_ bstractor's note: Complete translati I I.A onj V//' Card 2/2 3/137/62/000/006/149/10'3 1105-7/Ai0i AUTHOR Ldbl, Karel -------------- TITLE. Modifications of new cast heatproof steels aand the modern state in development of ingots, intended for fl- work at high temperatures rERIODICALi Referativnyy zhurnal, Metallurgiya, no. 6. 1962, 4 - 5, abstract 6E27 (*'Zv&ra6. sb.11, 1961, v. 10, no. 4, 41-1 - 433, Czechoslovakian; Russian, German and Fnglish summaries) TEXT: In the State Research Institute for Materials and Technology in Prague 3 types of stainless steels were developed with :!% Cr, modified with carbide-forming elements to increase the resistance to heat, for works at tem- peratures of 550 - 6000C. The new Cr-Mo-V-steels were named ARM 10 and AW4 11, and the Cr-Co-W-V-steel ARM 12. Steel ARM 10 is suitable for large ingots, while steel ARM 11 is used for medium and small ingots. Steel ARM 12 contains defic-1prO. Co. Similar steels were developed in the Plants V. I. Lenin in Plzen in form of steel with 12% Cr and Increased content of W. Among these is steel, named T r-9 L, suitable .'or large Ingots. For temperatures above 6000C the mentioned steels are not convenient, and have to be replaced by austenitic steels. Wide-spread uae Card 1/2 Modifications of new,.. S/137/62/ooo/oo6/149/163 A057/AIO1 have in Czechoslovakia austenitic Mn-Cr-steels for ingots, named AM 1 (17/7 mnCr'ri) or AM 2 (17/10 MnCrV) and 4types of austenitic Cr-Ni-steels (from AR14 3 ARM 6). Concerning the resistance to heat steel PJU4 2 is convenient up to 6500C, and steel ARM 1 only until 6200C. To the austenitic Cr-Ni-steels ARM-ARN bclong steel Poldi AKVSBL (ARM 3), the Soviet steel LA 4 of the type 15/15 with 3% -'o (ArV 4), the Soviet steel CZ (CZh) 8 of the type 16/13 with lei', Mo, V (AFU41 5) and it5 modification with increased content of W up to 6% (ARM 6). Satisfactory heatproof properties have steels ARM 4 and ARM 6, but steel ARM 4 has to be used preferably when an increased ak is needed. The advantage of steel ARM 6 is the absence of deficient Co and good weldability. V. Tarisova [A'.!stracterls note! Complete translation] Card P-12 S/137/62/000/006/152/163 A057/A1O1 AUTHORS: Vyklick~, M. TITLE: On the question of the weldability of economical chromium-nickel stainless steels with a two-phase st,,.~~txire PERIODICAL: Referativnyy zhurnal, Metallurgiya, no. 6, 1962, 5, abstract 6E32 ("Zvhra6. sb.", 1961, v. 10, no. 4, 496 - 503, Czechoslovakian; Russian, German and Fmglish summaries) TEXT: Results of mechanical tests of welded samples of steel Cr2l N15 Ti and Cr2l N15 Mo2, developed as substitutes of classical Cr-Ni-steels of the type 18-8, stabilized with Ti, are presented. See EI SVP, 1962, no. 14, ref. 57. Ye. Greyll [Abstracter's note: Complete translation] Card 1/1 Tt -17 dig g I T LOBL. Kam], inz., C.Sc. Intarnaticnal. Symposium on 3tairdess Steel and, A.11o7a :Ln Zvaranie 10 no.12:378 D 161. S1 137/6 2./OrO/C,08/C)57/()65 A006/A101 AUTHORS: L6bl,,,Karel, V"a, Cestmir TITLE: Fe-Cr-Ni alloys with a strengthening d-phase for the hardfacing of scaling reinforcement surfacea PERIODICAL: Referativnyy zhurnal, Metallurgiya, no. 1962, 12, abstract 8E68 ("Materifil.sb. 1960, Cas~. 2", Statni vkzkumn~ ~Lstav materi&lu a technol. Praha, 1960, 125 -'135, C%ech; summaries in Russian and English) TCXT: The authors present a short review of literature on hardfacing materials which do not contain Co and which, after additional heat treatment, single out a strengthening 6~-phase. Experiments 6f the Czechoslovak Institute of Materials and Techniques on the development of such an alicy for arc hard- facing ar6 discussed. Austenite-forming C, 11, Ni counteract the separation of the 6'-phase (Mn dissolves considerably in the 4!r-phase), ferrite-forming S1, and, to a lesser degreo, Mo, Ti and Nb, promote its separation. Some variants of hard- faced type X 40 H 10 (Kh4oNlo) and X310 H 10 (Kh3ON1O) metal are investigated, as Card 1/2 Fe-Cr-Ni alloys with a... 3/137/62/000/008/057/065 AOO6/A1O1 to hardness and microstructure, after various types of heat treatment. Mu' a, W i galling in friction was also studied. On the basis of experiments, three expe- rimental electrode types were developed yielding the following composition of the built-up metal: (in %) grade 598 - C 0.38, Mn 3.1, Si 0.7, Cr 17.1, Ni 7.4; grade 560 - C 0.3, Mn 1.0, Si 1.3, Cr 26.9, Ni 10.0, ITh/Ta 0.8, and grade 888 - C 0.09, I-In 1.0, Si 5.0, Cr 17.0, Ui 7.9. The Institute in cooperation with the "Moravskoalezsk4 armaturkall Plant carried out the hardfacing of some sets of sealing parts for steam valves. The hardfaced valves operated satisfactorily during tests on a high-pressure stand at 5000C and under particularly difficult conditions. They have now been trial-operating for several months at one of the Ostrava electric plants. Ye. Greyll [Abstracter's note: Complete translation] Card 2/2 LOBL,KRrel,inz.,kjndidut technickych vs)d;. LJ-JJKY,7AIvnv)(, IzI4. Welding of stainless austenitic nitrogen alloyed Steels. Zvar sbor 9 no.l;:445-461 160 1. Statni -ryskumny ustpv materialu a tcchnologie, Praha; Zelezarny Antonina Zapotockeho, Vamberk. Z/056162'/019/008/001/007 1037/1237 AUTHORS: Ldbl ' K- and Wa, C. PERIODICALS P ~hled technickd a hospoditske literatury. Hutnictvi a strojirenstvi v. 19. no. 8, 466 abstract HS62-5921 (1960 Praha: SVOMT, STK 129029) TITLE~ Economical non-rusting st"Is for casts of the type Cr-Ni-Mn-N and Cr-Mn- N TEXT: Study of the additives Mo and Cu to the mechanical properties and corrosion resistance of the steels menticned for the casts It was found that addition of Mo, Cu or both (up to 2%) does not lower the essential mechanical qualities of the steels investigated and in some cases it improves their resistance to corrosion. Possibilities for use of the tested materials. 12 microphotos, 14 diagrams, 3 tables, 17 references. From the collection (p. 103-124). Material collection 1960, Part I I: Glow-proof. glow-resistant, and corrosion resistant steels and alloys. [Abstracter's note: Complete translation.] Card 1/1 A0521A101 AUTHORS: L8bl, Karel, Pot&6ek, Bedkch, Vystyd, Milog, H~bek, Karel TITLE: Austenitic heat-resisting stainless steel for castings H-RIODICAL: Reforativnyy zhurnal, Metallurgiya, no.*10, 1962, 77, abstract 101499 P (Czech. pat., no. 99833, June 15, 1961) TEXT: The patent presents an austenitic steel containing (in %): 0.20 - 0.75 C, -53 si, 6 - 16 14n, 106 - 32 Cr, i!!~3 Ni, o.2 - 6 mo, 0.15 - 0.75 N and also --.0-05 B and -_c--20 Co. The presence of B and Co contributes to heat resistance. These steels are characterized by a high heat and corrosion resistance and can be used for work at up to 1,OOOOC and in an atmosphere containing C and S. V. Srednogorska (Abstracter's note: Complete translation] Card 1/1 S/137/62/000/009/020/033 Aoo6AlO1 AUTHORS: L8bl, Karel Pot;6ek, Be61ch, tustek, Alois TITLE: Stainless austenitic steel for castings PERIODICAL: Referativnyy zhurnal, Metallurgiya, no..9, 1962, 78, abstract 91480 P (Czechosl. Patent no. 100061, of July 15, 1961) TEXT: To replace the widely used austenitic stainless Cr-Ni steel (9% NJ, 18% Cr), an austenitic steel is proposed which does not contain NJ at all or only small amounts of it. The chemical composition of the steel (in %) is: C 0.05 - 0.3, Si t~~1-5, Mn 10 - 20, Cr 14 - 22, N 0'.15 - o.45, Cu 0.10 - 3.0. The corro- sion resistance of the steel can be raised by addition of 3.5% NJ or 0.10 - 5.0% Mo (or by joint addition of NJ and Mo). The mechanical properties are improved by addition 'of B or Zr in a 0.05% amount, or by their simultaneous addition in a quantity of 'up to 0.10%. The steel structure should not contain > 25% of t~e ferritic component. The production of this steel has an economical advantage, since its use makes it possible to reduce the weight of tha~castings (due to improved mechanical properties) and their NJ content. Moreover, the wide-ranged Card 1/2 S/137/62/000/009/02()/033 Stainless austenItic steel for castings Aoo6/Aloi chemical composition of the steel permits the use of mixed alloy-steel wastes for melting. The.authors point'to the positive results of tests made with parts of steel containing (in %): C 0;16, Si 0.67, Mn 17.23, Cr 17A, N1 0.22, Mo o.42, cu o.48, N-0-34, P 0-017,~S~0-012 - in HN03 at its low concentration and temperature, and Also In the production of oitric acid. G. Rymashevskiy [Abstracter's note: Complete.translation] Card 2/2 3/1-37/62/000/009/021/033 A006/A101 AUTHORS: L8bl, Karel, Vyntyd, Milo; TITLE: Heat resistant stabilized welding steel for castings PERIODICAL: Rpferativnyy zhurnal, Metallurgiya, no.-9, 1962, 78, abstract 9I482 P (Czech. Patent no. 101050, of S(.,-'..,-mber 15, 1961) TID(T; A composition of heat resistant steel for casting is proposed which does not contain Co and is distinguished by high structural stability and good weldability. The steel contains in %: c m6 - 0.25, Sl --: 1.2, Mn t:-,3.2, Cr 14 - 20, Ni. 12 - 20, P i~-0.1, S I. 1, Statmi, vyzkumny ustav materialu a technologiejo Praha* TIMCKI: M. y INZ.; LoBL, X., inze proMem of weldability of economical K"r rustproof steel with two-phase structure& Zvar abor 10 no.0496-50 161- 1. Statni vyzkumny ustav materialu a technologiej, Praha& ZABOKHTSKY, MiroslaVjI9UA_.Kare1 MaterW properties of hardfaced spindles of fittings for supercritical. parameters* Zmrania 12 no.4-.85-89 Ap 163. 1. Statni vyzkumny ustav materialu a teohnologiev Praha* VYKLICKY, Miloslav;.Lg~~Ka~rel--KABRIIELI Adolf; TUMA, Hanus; CIHAL, Ifladimir; PRAZAK, fffa--n Effect of molybdenm and copper on the properties of chrome stainless steel. Hut Usty 16 no.8:553-560 Ag 161. 1. Statni vyzkumny ustav materialu a technologie, Praha (for Vyklicky, Lobl, Kabrhel and Tuma). 2. Statni vyzkumnv ustav ochrany materialu G.V.Akimova, Praha (for Cihal and Prazak). SUSTEX,, Aloia; WBLI Karel, . . ..... . .. Founding properties of stainless steals with reduced 'nickel content. Slevarenstvi 11 no.Ut468471 W163o 1. Statni vynkumny ustar. materialy a technologiep Praha. BIZEK, Vaclav, inz.; LOBL, Karel, inz., CSc. Some problems of the weldability of CrlRUW811 and CrlG,,nl5li austenitic stainless steels. Zvaranie 12 no.10:284-287 0 163. 1. Statni vyzkumny ustav materialu a technologie, Praha. 'q MT VRBIKJ, Vl.; DRAPAL, S.; KRAUS, VI.; LOOBL, K.; VYKLICKY, M.; KAERHEL, A.; SUSTEK, A.; SLABAp J.; STETINA,--K*., SCHREIBER, B.; PFUDKY, J. Information on the reports of the State Research Institute of M%terial and Technology. Energetika Cz 13 no.1:53-54 Ja 163. Z/032/63/013/002/004/004 r-073/E335 AUTH071S Vyklicky. LUbl, K.. Potucek, B. and Kabrhel, A. TITLE: Introduction of onotity stainless refractory steels and facing elements PERIODICAL: Stroj:Erenstvf. v. 13. no. 2. 1963, 155 TEXT: The possibility was examined of substituting expensive and scarce steels by economy steels of the type Cr18Ni511nqN and~CrAVIU15N_and -satisfactory progress was made in introducing the proposed alloys as substitutes for the steels Real 095 and 096. Furthermore, tlie'possibility was considered of usint the steel CrlMnl5N for a number of corrosive media under current welding conditions. Work has progressed in obtaining more accurate data on the properties of the oxidation-resistant austoniti*c chromium-nickel.steels used for casting components of fittings. turbines, etc. Draft data sheets were worked out for the steels, ARM and ARM 6. Report Z-61-987. SVOMV, Prague. 1961. CAbstracter's note; complete trinslationd Card 1/1 Z/O32/63/Ol3/Oo4/on/o11 E073/E535 ~AUTHOR: Ldbl Ke 10 stools TITLE: Checking on the possibility of using AMI for castings of gas-turbino components PERIODICAL: Stroji'ren5tvf. V.13, no.4, !963, 316 TEXT: Laboratory development of 12~/o Cr-base steel, brand Al'aA 10, intended primarily for cast components of gas turbines. Tests on the meebanical properties. structural stability, resistance to thermal shocks, high-temperature strength and weldability. Draft of a data shoet and instructions on the manufacturing technology. Report i-62-1134, sv&yr, Prague, 1962. CAba tracter's note: complete translation] Card 1/1 LDBLV K. Cheo)dng the possibility of using ARM 10 steel for casting gas turbine parts. Energetika Cz 13 no.7:386 Jl 163. LOBL, K.; VYKLICKY, M.; UETIEL, A.; Introduction of now stainless, fireproof, and fire-re3isting steels and alloys In Industrial production. Energetics Cz 13 no.8:440 Ag 163. VYKLICKY, ~1.; LOBL, K.; POTUCEK, B. Industrial uge of ecommical sta.Wass refractory steels and alloys. Energetika Cz 13 no.9:500 S 163. j . ACCI;SSION NRI AP44o34533 Z/0065/641000/002-/0138/0152 AU771ORt Lobl Karel Lebl, Karel)j Tuma, Hanus (TWup Ganush) TITTZ: Precipitation and solution of carbide M23C6 In type 18/9 low-oarbon austenitic steels SOURCEs Kovove materia,3,y, no. 2. 1964. 138-152 TOPIC TAGSi low-carbon austenitic steel, carbide precipitation, activation energy, nucleation area, diffw1on growth, isothermlo roasting, plastiolty reterktion, kinetic property. thermodynamic property ABSTRACT: The advantages of low-carbon steel may be offset by the choice of wrong production methods and by keeping it too long at critical temperatures for the precipitation of carbides. Me paper discusses the kinetics of precipitation of chromium carbide in two 40 kg batches of steel of type Crl&14i9 (0.058% and 0.036% G), fairly stable toward phase sigma, when roasted isothermically for a long time at 400-1,000 0, and studies their behavior by diraot eleatrolytio isolation In an alcoholic 5% bArochlorlo-wid solution c~-,j- 1/3 ACCF.SSION NR: AP4034555 and chemical ana2ysio of the carbides. Special attention was paid to the pro- cesses in the areas of nucleation (up to 650C) and diffusion growth (650--760/770C) of these carbides and above 760 and 7700, respectively. where carbide W6 was partially soluble In the two batches. taken from ordinary production in a basic induction furnace. The activation energy of the carbide reaction was found to be 32,000-38,000 cal/mol in the area of highest solubility; over 70,000 cal/mol in the area of pronounced diffusion growth; around 3,000 cal/mol in the nucleation area. The averaga chemical composition of Me6 is Cr1q.8 F03.296 for the state of equIlbriume In the nucleation area the precipitated carbide was substantially richer in iron, whoroaa In the diffuvion-growth area the iron content declined due to the inoreaaod rate of diffusion of the chromium. The distribution of total carbon between mwtenite and carbides depends upon the carbon content above 770G; below this temperature, not only on the carbon content, but also on the time of inothervio roasting* The mechanical eVeriinente with samples subjected bard 213 --- ------------- WOMP-M FPO TV; T f~7 7~ j ~-Z ACCESSION NROf'40343,55 I to isothandc strain for up to 10,000 hours showed that 2819-type chrovdum stools with reduced carbon content retain considerable plasticity even after long roasting. The results of electrolytic isolation of -the carbide phases are helpful. in studying the kinetic and thermodynamio properties of carbide reaotionas Origm art# hass 10 fiprea " 4 t&lea. ASSOCIATIONs Statni vyzkwm-q ustav materialu a technologies Prague (State Research Institute for Material and Toohnology) sumaTTED s imep63. DATE AcQ, 12may64 ENCL 1 00 StM CODEs MM NOW BOVS 004 0TFMx 005 .-3/3 77: I", NX 71i x, miff- U%T,~ 'N,_ ACCESSION HR. AP4012493 Z/0034/64/000/002/014T/014T (Engineer); Lobl, K. (Engineer); Kopal,,.Ve (Engineer) AUTHCRI' VykliFR ITITLE: Stainless austenitic-ferrite steel iSOURCE: Hutnicke listyl nos 2# 1964, 147 .~TOPIC TAGSs austenitic-ferritic steel., intercrystal corrosionp corrosion- resistant steel AESTRACT.- The object of the invention is "the forming and casting of austenitic- i~ ferritic steels resistant to inter-crystal cdrrosion. These steels contajn from 30 to 50 percent ferrite, the remainder is austenite and type M2JC6 carbide. The ferrite contains from 22-5 to 25% chrome, and from 3 to 5% nicke , and the aus- tenite contains from 19.5 tp 22.5% chrome and from 5 to 6% nickel, with a total contant of carbon in the alloy of up to .25%., a silicon content up to 1,0o', a 6% manganese content by weight, and with the usual content of inclusions. A close study of'the properties of steel with two-phase austenitic-ferritie structure, either stabilized (about 0.5% titanium) or non-stabi:.ized, was con- Card ACCESSION NR; A.P4012493 ducted with material having'a carbon content of about 0.1%, a silicon content of about 0.5%, manganese, about 0*5%p chrom, about 20%. and nickal, about 4%." in som cases, these wero alloyed with about 2% molybdenum. With hoat treatmont at 1,0500C air temperature, the following average mechanical properties of ateel were deiermiheds Type of Steel qKt ol't 10 R ~P/=2 kp/rm2 % mkg/cm2 Cr2ON14 41.8 85-8 37.5 13.2. Cr20Nl4Ti 49.7 78o0 30.8 8.6 Cr20Nl4,vo2 47.6 72.0 43-1- 14.2 Cr20Nl4Mo2Ti 54.1 6o.1 18.5 3.6 The nonstabilized stee'Is have considerably better p1jistic properties than any stabilized steel alloyed in the same way. ASSOCIATION, None .C -o~d 24~ Pr- ....... .. . M V 14; ~-. LOU, Karel; LICIIA, Leopoild; ABUSINOV, Alexandr Founding properties of acid resistant alloys based on nickel. Slovarensz,vi 12 no.6-22ii-230 Je 164. 1~% Oltate Researcl- 7,:~-rltute of Rateria-Is and Technology, Prague. IDBL, Karel, inz., CSc. Problem of the structure and chemical composition of weld-on alloys for service at the temperature 700 *C. Zvaranie 13 -.1 no. 1: 3-10 Ja 164. 1. Statni vyzkumny ustav materialu a technologie, Praha. ZtWKRTSKY, Miroslav; LOBL, Karel..- inz. CSc. Surfacing of sealing strips on fittings from 17,027.6 s-,.ain.- -T less steel. Zvaranie 13 no. 4 -.103 Ap 164. 1. State Research Institute cf Material and Technology, Pragize. LOBL, Karelt inz. GSce; ABUSINOV, A., inz. Welding of acidproof alloys based on nickel. Zva-.anie 1.7 no-5/6:146-151 ftj-Je 164. 1. State Research Institute of Materials and Technology, Prague. WBL K. Development of the Czechoslovak prototypes of closing and protective fittings for very high steam parameters and the tests of their properties. Energetika Cz 14 no. 3: -147 Mr 164. U)BL, Karel A quarter cen-ury cf fi,,e Protck List.-; cukrovar M no. 6:164-166 Je 164. _L_L40j.b5 EWA,(d)1hWP(t)AWP(b) A,;D(rr)-3 ACCESSIOR NR: AP4044396 E/006516410001004/0384/0396 A-UTRaftr Lob~L Kara I (Lebl 6 Kdtel) ; Rysava . Marie (Ry*shava , HarLyd Turia, Hanu ~"_t ~Uma. ' artush) TITLE: Effect of heat treatment on the resistance of stabiltzed austenitic, chrom1unt-nLckel steels to intergranular corrosion ~q SOURCE: Kovove materialy, no. . 1964, 384-396 TOPIC TAGSt intergranular corrosion, chromium nickel steel corrosion, austenitic steel, Intergranular corrosion, titanium stabilized austen- itic steeL, niobium stabilized austenitLc steel, steel intergranular corrosion ABSTRACT: Three austenitic chromium-nickel steels were investigated for susceptibility to intergranuLar 4 orrosion. The steels investigated were titanLum-stabiLized CSN 17 2461steel/(0.10%C. 17.40% Cr, 9.57Z Ni. 0.572 Ti), niobium-stabliized CS11 N7 247 ,teel (0.07%C, 19.4% Cr, 1 11 . 4 9 2 N i , 0. 79% Nbaud 0. 08% T,~) I and low-carbon AK_V8 a tee1 (0.05azc. 17.70% Cr and 9.25% HL). The results showed thatf!:~Tll the steels tested were more or Lear susceptible- tointergranAiar corrosion and Card 1/2 , L 14033-65 ~ACCESSION NR: AP4044396 especially susceptible when solution heat treated at temperatues above 1050C. The 17 246 steel when annealed at 1300 or 1400C and then held for 20 or I min,respectivelyat 700C became susceptible to Latergranular corrosion. The H7247 and AKV8 steels showed somewhat better behavior. In titanium-stabilized steel a complex carbide, possibly (Ti. Fe. Ce) (C, N), is formed at high annealing temperatures. During the sub- :sequent sensitizing treatment at 700-800C, it decomposes, resulting in concentration gradien'ta. In this condition the steel becomes susceptible to Lntergranular corrosion. However, with prolonged sensitizing treatmente the concentratioa gradients are leveled out and a polyhedral carbide Ti(C, N) is formed; in its presence the susceptibility to intergranular corrosion decreases. More or less similar effects are expected to occur in niobium-stabiltzed steels. GeneralLy, low-carbon, steel appears to be the least susceptible to intergranular corrosion. Orig. art. has: It figures and 3 tables. ASSOCIATIONt _LVUHTL_PrASue SUBHITTEDe 27Peb64 ENCL: (10 SUB CODE: HH NO REF SOVS 001 OTHERt Ot6 Card 2/2 ;274,3--55 E7,A(c CESSION I;R.- W;0211107 rZ/CC1--'- /64/0030/012/0870/0874 AUTHOR: Lobl, Karel; Tuma, Hanus; Grobner, Pavel T17"L.E.- Contribution to the kinetics of segregation of carbides in austenitic 1 steels of the type 18 Cr, 9 Ni, Ti SOURCE: Hutnicke listy, no. 12, 1964, 870-8?4 TO -PIC TAGS: crystallization, carbide, electroclie-mical annalysis, alloy ste"l, high alloy stWf, austenitic st-:~-el Abstract Authors' English supurmr7_7: Kii-iotics of tho r.,stalli- ~ earb, des was ln,.resi- I- mcthrdl c t r o o, em - ZVI Lo!-~ 01 -,t-;.on ard' c,~~-i! r I e s a o tu he ri-ap an.-.- e. a 0-,)-ra-ation of Ti caarbl(jes j, I- 4 ccrd 1/2 --t-AC=SIONxRRI --AP5021407-----,- 14' Ti). Decrease of ;the nteel (4-6 kcal/mOl at 0.21cf to 8-15 at 0.6 0~ rulck -I Fumount of TI, "r, Fo in c r 1) 1 !e. q c, -r~.,n ' n a i' in austenitic abor-la i3 ~'r 17 rt h a r, ,12 gra ph c. t ab 1 e CCIATT-ON: SVU71j_Pru~pn~, e 2M IT TTD: 00 "I REF SOV 1 001 t.N" OTim I Wk "t),.v 2/2 PIP S~')Itl J? AP 5 C' 17 2 3 y Fts t 3 t P. -I ne a Fh r,,~m 1 .z-- - r SOURCE: Hutnicke listy, no. 7, 1965, 52B TArs,3: steel, cant steel, atainlf~s,: st".1, chrcmiun. nickel steel, atalInlear -etteel, 7ast nhr-.qmi,im,. F'.rzf~* -tfil chromium ni,,ke', This Author Certificate lnl.roduces a sttilnless chr-mium-nic'.kc, steel ng 0. 125P 4.0% NIn, up to Ni , cz-n-e pr- e a ;Ie a' eo: --7rr--,g ~j q 7t I~~ h c r vt- v Ii, If 5a,-asceptibility tc wel" T i: i as'. s'-r-,- steal. Card 1/ 2 L 5,7437-65 A~CCESSION RR: AP50IT234 !ASSOCIATIO17: none ~71*-M!==,- 00 ENT --PE, 000 AT' :-~FSi~ 4041 L - ~ - 2318846 ALC Ms A 6006073 SOURCE CODE' AUTHOR: Tuma, llanua--Tuma, Ganush; ~y ~avn _NL~K~!~-:-Ryshavq, -Mar iy Lo7bl e~-_. Le~bY,Varel G~ rague OR S U , P TITLE: Contribution. to the study of fractitte surfaces on stainless steels of the o"OD type Crl8tjqT~i SOURCE: Kovove materialy, no. 1, 1966, 0-73 TOPIC TAGS: stainless steel, annealing, -irbide, cor-osion, steel, material fracturO, electron microscopy/CrI8NiqTi steel ABSTRACT: The paper describes some results of an investigation of the fracture Sur- faces of type Crl8Ni9Ti steels performed by the electron microscopy method. in the process, polarization curves in different electrolytes were determined, and the chemical composition of the fracture surfaces was estimated. The differences in morphology as well as in the rate of precipitation of the M23C6 carbides on the boundaries of grains were identified. While the carbides were precipitated after 5 minutes of annealing at 750C on the boundaries y - 6, intensive precipitations took place only after one hour of annealing on the boundaries y - y. This corres- ponded to the state when the material develops a tendency to intergranular corrosion. Selective dissolution of areas tending toward this corrosion can be attained in a 5 per cent formic acid electrolyte. The original amount of 18 per cent Cr was found reduced to 10 per cent in the region of fracture. A small increase in nickel Card -1/2 ,e' L 23188-66 ACC NRs AP6008073 co ntent was observed which, however, cannot prevent the starting of corrosion. The results of investigation are'in accordance with the Rollason's curve fur the steel investigated, and confirm the theory that the tendency to intergranular 4 corrosion of Crl8ffigTi steels is caused by the lowering of Cr content In the regions ,of grain boundaries after precipitation of M23C carbides. Orig. art. has: 13 fig- 6 ures, and 1 table. [Based on Authors' abstract.] SUB CODE: l1/ SUBM DATE: 27Apr65/ ORIG REF: 004/ OTH REF: 001/ SOV REF: 001/ L 31943-66 GVA(d)/EA'~( ~)TI IjPt~ I 9 - _(~ - ACC NR: 6 Ou AP 0 S RCE CODE: CZ/0078/66/000/005/0017/0017 !NVENTOR: Lobl, K._(Engineer; Prague); Zezulova. M. (Candidate of sciences; Engineer; Prague) ORGt none TITLE: Weldableo austenitic, corrosion-resistant chromium-nickel CZ Pat* Koo Pv 50TT-659 Class 40 SOURCEt Vynalesy, no. 5, 1966, 17 TOPIC TAGSs chromium containing steel, nickel containing steel, veld- able steel, corrosion resistant steel, intergranular corrosion, austenitic steel, boron containing steel, nitrogen containing steel ABSTRACTt This Author Certificate introduce* a weldablep au tenitic, cbromium-nickel steel, resistant to Intergranular corroslon:rcontaining! max 0.08% C9 19.2 A 2% Cr, 13 t 3% Ni, 2.2 2 1.29% Mn. 1.1 ' 0.5% Si, ! 0.10-0.22% Nq and 0.003% B. The total content of Si and Cr should noti exceed 20.0% and the total content of Ni and Hn should not be less thanl- .(WWI 120%. .SUB COM ll/ SUBM DAM 16Aug65/ ATD PRIMS702-2, 1 13f, 9L JJ4910-66 9-&~I)ZETT IJP(c) JDAE 1-7cc-NW,--AP6026592 SOURCE CODE: CZ/0034/66/000/002/0112/0119 AUMOR: Lobj_, Karel--Lebel, K.; Rysayfk, Mg~e--Riahavaj_tq Bizeko Vaclav; Abusinov, RLexanar-Abushinov, A. ORG: State Research Institute for Materials of Constructionj Prague (Statni vzkumny ustav mate a1u) TITLE: Influence of heat treatment upon the structural properties of cast steel Crl8N,9Ti SOURCE: Hutnicke listy, no. 2, 1966t 112-119 TOPIC TAGS: cast steel, solid physi al ro rty, annealing, corrosion protection, material fracture, metal heat treatment Crl8Ni9Ti cast steel ABSTRACT: The influence of the wall thickness of mechanical properties, on the annealing temperature, andAthe time needed for annealing in the elimination of intercrystalline corrosionlis investigated. Isothermal annealing at 7500C was studied; long term heating to 600 - 700*C in materials with varying ratios of Ti : C was investigated with respect to notch strength and the appearance of fracture surfaces. When casting is made at 700 - 8OO'C the notch strength is decreased significantly because of precipitation of carbides and of sigma 3ham, Orige art* has: 25 figures and 2 tables. [Based on authors' Eng. abstract Ci S: 34,7791 SUB CODE: 11, 20, 13 / SUBH DATE: none / CRIG REF: 005 / OTH REF: 001 Card 1/1 )~ -, ACC NRI AP7004410 S OURCf~'_C66i _:d2~j6ff2_76i_/_6f7_f06_i_/ _06K AUMOR: Pluhar, J. (Prague); Lab,42_E. (_Lr!!4ue)_; Sichq, M. (Prague) ORG: none TITLE: CSN 42 2916 (ARM) cast heat-resistant stainless steel SOURCE: Strojirenstvi, v. 17, no. 1, 1967, 26-31 TOPIC TAGS: chromium) a tainless sted, dMaMMMheat r#sistant steel, molybdenum cant=!:ca~ steel, vanadium steel, S01.1D me0hanical property/ARM,,steel ABSTRACT: CSN 42 2916 heat-resistant stainless steel (0.16-0.22% carbon, 10.2-11. chromium, 0.90-1.20% molybdenum, and 0.20-0.35% vanadium), intended for cast parts used in the power and chemical industries, has been developed. In heat-treated condition (annealed at 1040-1070*C. air cooled and tempered at 720-750) the steel has a tensile strength of 65-85 kp/mm2 and the following minimum values of other properties: yield strength 45 kp/mm2, elongation 15%,,reduction of area 30%, and notch toughness 4 mkp/cm2. The 100,,000-hr rupture strength at 550 and 600*C was 12.4 and 7.4 kp/mm , and the creep strength (1% total deformation in 100,000 hr) was 8.3 and 5.0 kp/mmz, respectively. Orig. art. has: 4 figures and 4 tables. JDV] SUB CODE: l1/ SUBM DATEt none/ ORIG'REF: 015/ OTH REP: 002/ SOV REP: 001 Card UDC: none PA". Sandor, Dr.; SOLTABZ, lajos, Dr.; PINTIR, i9ndre, Dr.; IMIA)VICS, Ivan, Dr. The neurovascular syndrome of the upper extremity. Orv. hetil- 99 no-34: 1172-1175 24 Aug 38. 1. A Badapeati Orvastudomanyi Eg7etem IT. sz. Sebeazati Klinikajanak (ipAzgato-. Kuda9z, Jozaef dr. egyet. tanar kozlemenyo. (SCALOU ANTI= SYMONS (Run)) IOCZ,Iaszlo,dr.; IABLQYICS, Ivan, dr. 481 Thoracic operationg Derformed urider intratracheal anesthesis. Taberkulozis 13 no.4:U6-120 Ap 160. 1. A. l3udapeoti Orvostudomanyl Rgyetem IV. oz. Sebeszeti Klinikajanak (igazgeto: Xudasz,Jozsef,dr. egyetemi tanar)kozlemenys. (THORAX) (ANMTMISU INTRATRACHUL) LOBLOVICS, Ivan, dr.; PINTM, Endre, dr. f Management of atelectasis following pulmonar7 operations. Tuberkulozis 14 no.3:90-93 Mr 161. 1. A Budapesti Orvostudomanyi Egyetem IV oz. Sebeezeti Klinikajanak (igazgato: Kudasz Jozsef dr. egyetemi tanar) kozlemenye. (LUNG surg) (ATUMTASIS ther) U1111 I j Ivan.. dr.; LENCZ, Iaszlo, dr. Use of tubes of Carlene in aneBthetic intubation. Magy sebeez. 14 no.5: 3o1-306 0 161. 1. A Budapeati Orvostudomanyi Egyetem IV az. Sebeezeti Klinikajanak koslemanye. (AMTMIA INTRATRACHEAL equip & supply) LOBLOVICS, Ivan, dr.; GOMORY, Andras, dr.; HUSVETIO Andor, dr.; KUDASZ, 'Tozoef, dr.; LENCZ, inexio, dr.; MARKOS, Gyorgy, dr.; PAPP, Sandors dr.; SZABO, Zoltan, dr.; SZAXTG, Katal-in, dr. Data on the organization of preoperative prepamtion in surgery per- formed with extracorpoml circulation. Magy. oebeBzet 14 no.6:337- 343 D 161. 1. A Budapesti Orvostudomanyi Egyetem IV oz. Sebeszeti Klinikajanak kozlemenye. (MM MCHANICAL) PAPP, Sandor, dr.; GOMORY, Andras, dr.; HUSVETI, Sandor, dr.; KUDASZ, Jozoef , dr.; LEXCZ, Laszlo., dr.; LOBLOVICS, Ivan, dr.; HAMOS, Gyorgy, dr.; SZABOP Zoltan, dr.; SZANTO, Katalin, dr.' Management of patientar &wing the first 24 hours after the use of extracorporeal circulation. Magy. sebeozet 14 no.6:343-350 D 161. 1. A Budapesti Orvostudomanyi Egyetem IV oz. Sebeezeti Klinikajanak kozlemenye Igazgatot Kudaoz -Tozoef dr.,egyetemi tanar. (HLW MERANICAL) LOBLOVICS, Ivan, dr.; PAPP, Sandor, dr.; BESZNYAK, Istvan, dr. Determination of pH during the couree of intratracheal aneathesia. Magy. sebeezet 14 no.6:390-394 D 161. 1. A Budapesti Orvostudomanyi Egyetem IV sz. Sebeszeti Y-linikajanak kozlemanye. (ANESTHESIA INTRATRACHEAL) (HYDROGEN ION CONCENTRATION) MARKOS, Gyorgy, dr.; LOELOVIC6, I-M, dr. Aneethesiolog.7 of infants with esophageal atresia. Ory. hetil. 102 no.27:1263-1265 2 Te 161. 1. Budapesti Orvostudomanyj Egyetem, IV Sebeszeti Klinika. (ESOPHAGUS abno=) (ANESTHESIA, GENERAL In infancy & childbood) ; HUSVETI, Sandory dr.; LENCZ, KtMASZ., Zozoef, dr.; GOMORY, Anadras, dr. rgYp dr.; PAPP, Sandor, Dr.; . LoBLOIJICS Ivan dr.; MARKOS, GYO Iaozlo, Ciro, -Ltalin, dr. SZABO, zoltELn, dr.; I Experience with extracorporeal oirculation in lot 10 intracardiae operations. Orv. hetil. 102 no.48:2263-2268 26 N 161. 1. Budapestj Orvostudomanyi Egyetem IV Sgbeozeti Klinika. (ffMT 14ECIWIICAL) SZABOI Zoltan, dr.1 OOM=p Andras, dr.; HUSVETI, Sandor, dr.; KUDASZ, Jozaef, dr.; LENCZ, Lasslo, dr.1 LOBLOVICS, Ivan, dr,*; MARKOS, Gyorgy, dr.; PAPP, Sandor, dr.; SZANTO, -IMUTFa n . dr. .0 Intra- and postoperative complications in surgery performed under extracorporeal circuUtion. Ox-7. hatil. 103 no.14:638443 Ap 162. 1. Budapesti Orvostudomanyi Egyatem, IV Sebeszeti Klinika. (HEART MECHANICAL) I LOBLOVICS,___Ivan.._dr.; BESZNYAK, h1tvan, dr. I Perforating regional ileitis. Orv. hatil. 103 no.31: 1461-1463 5 Ag 162. 1. Budapesti Orvostudomanyi Egyatemp IV. Sebeszeti Klinika. (ILEITIS REGIONAL compl) HUNGARY BRANDSTEIN, Laszlo, Dr, HOLICS, Klara, Dr; Tetenyl Ave Hospital, Surgical a~d Pathoanatomical Wards (Tetenyi Uti Korhaz, Sebeszeti es Korbonctani Osztaly). "Invaginations of the Small Intestines in Adults." Budapest, Orvosi Hetilap, Vol 104, No 24, 16 June 1963, pages 1130-1131. Abstract: The authors discuss three cases of invagination of the small in- testine. They were caused by a fibroma. a lipoma and polyposis, respectively. In adults, the disease is usually due to demonstrable pathological changes, mostly tumors. The changes can be diagnosed by detailed passage examinations and surgical removal of tumors might prevent the development of invagination. 2473 1/1 LOBLOVICS Ivan dr ; BODUAR, Endre, dr.; BOROCZ, Iajoo, dr.; Ion, re, dr. Modern oximetry in heart surgery. Or7. hetil. 104 no-46: 2181-2182 17 N 163. 1. Tetenyi uti Korhaz, I oz. Sebeozeti Osztaly. (OXIMETRY) (HEART SURGERY) (EQUIPMEITT AND SUPPLIES) LT,77,' lz;tvan, Dr, L MOVIC3. Ivan, Dr, EOR CZ, Lajos, A "'0 .0 Dr, --;,ndril, Dr; Tetenyi Ave 1--ospital, I. ,*uri:ical ...,ard (Tetenyi Uti Korhaz, T. :,ebeszeti Csztaly~, Budapest. "Dia::nostic Problc-rs in Advanced Cases of Y'itral S~tenosis," -Pudanest, Orvosi Hetilan, Vol 104, 1110 37, 15 Sept 63, parres 174-1-1744. Abstract; [Authors' HunL~,arian su;mmary] It is pointed out by the authors that, in severe mitral 3tenosis, the diastolic murmur can Ibe com.pletely absent. A lon:-, loud systolic murmur above the apex, on the other hand, can be pre- ,14. Se, . without re7urgitation in cases of severe mitral stenosis. If a loud murmur of aortic stenosis accom-imnies mitral stenosis, it does not always indicate a severe case of aortic stenosis. A prolon.,,ed,loud systolic murmnur above the pulmonary aorta can also occur in cases of mitral stenosis alone. These observations are supported by sample case histories of one patient each. I flun.,,,arian, 20 'destern references. FONO, Renee, dr.; LITTMANN, Imre, dr.; BOROCZV Lajos, dr.; BUKY, Bela, dr.; BDDNAR, Endre, dr.; IDBMVICZ, Ivan, dr.; TASNADI, Ferenc, dr. Cases of patent ductus arteriosus operated on during the past 14 years. Orv.Hetil,105 no.22t1015-1017 MY 31 164. 1. Budapesti Orvostudomanyi Egyetem, H. GyermekklJnika es Orvostovabbkepzo Intezet, Sebeszeti Tanszek. L013LoVICS, Ivanp dr.; BODIIIJi, Eridre, dr. 1-lultiple embolectoMY- ()T,v. hetil. 106 no.26tl231-1232 27 jeI65. 1. Tetenyi uti Korhaz, 1. Sebeszeti Oszta-IY- HANGOS, Gy.; KkTYUS, L.; LOBLOVICS, 1. Ileo,--ecost--my. A,::"a chir. acad. vol. Hung. 6 no.2tl83-186 165. 1. tehrstuhl fuer Chirurgie (Direktort Prof. Dr. I. Littmann), Instltut fuer Aerztliche Fortbildung, Budapest. HUNGARY BODNAR, Endre, Dr, TOTH. Judit, Dr; Institute of post- graduate Medical Education, Departme6t-of Surgory (Orvostovabbkepzo Intezet, Sebeszeti Tanszek), and B. M. Korvin Otto Hospital, Surgical Ward (B. M. Korvin Otto Korhaz, Sebeszeti Osztaly). "Experiences with the Smithwick-Telford Operation." Budapest, Magyar Sebeszet, Vol XT-X, No 2, Apr 66, pages 101-106. Abstract: [Authors' Hungarian summary] On 4 patients, a total of 5 thoracic sympathectomy (Smithwick-Telford) operations were performed. Three of the patients underwent surgery because of occlusion of a main vessel; one had Buerger's disease. By means of the original technique of thoracic sympathec- tomy as recommendad by Smithwick, excellent results were achieved in every case. The uniformly good result is considered to be a condition which must definitely be taken into consideration when the indications for an eventual reconstructive operation are set up. All 11 references are Western. b-, 1 -1-1--- l,ln4ANN# Intle, dr.; LOOLOVICS, Irmi, dr.1 IX)DNAR, Endra, dr,; DOROC?,, Lajoo, dr, Sumusful nurgery of lert atrial myxamae M-r, hetil. 1.06 no. 50: 23'10-2571 12 D 1 65. li Orvustayabbkopso Intezet, Sebestetl Tanssek, MARKOS, Gyorgyp dr.; G014OFff, Andra.3, dr.; HUSVETI, Sandor, dr.; KUDASZ, Jozsef, dr.; LENCZ, Laszlo, dr.; LOBLOVITS, -13an dr.; PAPP, Sandor, SZABO, Zoltan, dr.; SZANTO, Katalin, dr. Blood coagulation regulation during extracorporeal circulation vith protamine sulfate titration. Orr. hetil. 102 no.50:2366-2367 10 D 161. 1. Budapesti. Orvostudomanyi Egyetem, IV oz. Sebeezeti.Klinika. (BLOOD COAGULATION) (HEART MECHANICAL) (SULFATES) f ~ v 1-1r 5 Ifungary/Chemical Technology - Chemical Products and Their Application. Synthetic Polymers. PlasticB, I- Abst Jcrurnal: Referat Zhur - Xhimiya, No 19, 1956, 63115 Author: Lobner-R., InstItutiont None Title: Use of Sheet Plastics as Interior Finish of Buildings Original Periodical: M-uanyag-foliak alkalmazaaa epuletek belso kikepzeseben, Magy&r kemik., lapja, 1955, 10, No 9, 262-263; Hungarian Abstract: Examples are given of the use of plasticized polyvinyl chloride as finishing material for walls and furniture. Card 1/1 'g LOBNTT.Szv Tonic and atonic muscle fibaers. Dokl.AN SSSR 112 no.6:1116-1118 F '57. (MLRA 10:5) l.Krasnoyarskiy gosudaretvennyy maditainakiv inatitut. Predstavlano akademikom Ye.N. Pavlovskim. (Kus(;Lz) LCBOB, G. A. Polailzati f internal coavereion electronB and positrons emit- ted after ~-ndecay of a nuclaus* Zhur. eksp. I tear. fiso 39 no-3: 684-688 s 16o. (MIRA 13:10) (Blectrons) (Poettrons) (BetA r4ye)