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U.S. Department of Energy
Office of Scientific and Technical Information

DEVELOPMENT OF COBALT-BASE ALLOYS. Quarterly Report No. 1 for December 15, 1958-March 31, 1959

Technical Report ·
OSTI ID:4188930

Ternary alloys containing combinations of Mo, Nb,Ta, Ti, and W produced alloys with tensile strengths of 60,000 to 80,000 psi at 1700 deg F. No oxidation- resistant complex alloys were found other than those containing significant amounts of Cr or Si. Ternary alloys of Co, Cr, and Mo had tensile strengths of 85,000 to 90,000 psi at 1700 deg F. These alloys were forgeable and oxidation resistant. Their main disadvantage was marginal ductility. Tantalum was found to alloy well with other strength-promoting elements, whereas titanium was generally unsatisfactory by lowering the melting point of the complex alloy if appreciable quantities were added. (C.J.G.)

Research Organization:
Illinois Inst. of Tech., Chicago. Armour Research Foundation
NSA Number:
NSA-14-008736
OSTI ID:
4188930
Report Number(s):
ARF-2131-7; AD-217539
Country of Publication:
United States
Language:
English