SCIENCE AND WEAPONS DAILY REVIEW

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP84T00045R000100050004-3
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 8
• Document Creation Date: December 22, 2016
• Document Release Date: April 21, 2010
• Sequence Number: 4
• Publication Date: June 6, 1984
• Content Type: REPORT

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Directorate of Secret
Intelligence
Science and Weapons
Daily Review
Wednesday
6 June 1984
Secret
SWSWDR 84-109
6 June 1984
Copy 2 C 1
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1 USSR: THERMOMECHANICAL TREATMENT USED TO
IMPROVE STRENGTH OF WELDED STRUCTURES
A recently published article in a Soviet
journal discusses the use of a specific
thermomechanical treatment to significantly
increase the strength of joints on welded
structures; we believe the treatment will
become a major Sovi technique for improving
alloy properties.
6 JUNE 1984
i SW SWDR 84-109
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OSWR
Science and Weapons
Daily Review
USSR: THERMOMECHANICAL TENT USED TO IMPROVE STRENGTH OF
WELDED STRUCTURES
In a recently published article in a Soviet journal,
B. Ye. Paton, Director of the Paton Electric Welding
Institute, and others address problems with the joints of
welded structures. The joints typically are lower in
strength than the metal being welded. The authors stated
that the strength of a welded aluminum structure was
significantly increased by using a specific thermomechanical
treatment (TMT).
Comment :
We believe that TMT will become a major Soviet technique for
improving metal alloy properties. TMT combines heat
treatment and mechanical deformation to produce
modifications in alloy microstructures. Physical properties
of alloys such as strength, toughness, and wear resistance
are determined by the microstructures. TMT has been used
with steels and with aluminum, titanium, and nickel alloys.
By using TMT, the Soviets can optimize the properties of an
alloy for a particular use. TMT also will allow the Soviets
to extend the applicability of existing materials. There
are several TMT processes that vary both in the mechanical
deformation temperature and in the heat treatments used.
One of the processes, called preliminary TMT (PTMT), can be
done with equipment currently available in many plants.
PTMT reportedly has increased the ultimate strength of
aluminum alloys up to 40 percent. A major advantage of TMT
is that no major retraining of the Soviet workforce is
6 JUNE 1984
1 SW SWDR 84-109
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necessary because heat treatment and mechanical deformation
are standard techniques. The lack of a skilled workforce
has hampered the Soviet development and use of new
materials, such as powdered metals and composites.
6 JUNE 1984
2 SW SWDR 84-109
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