High yield strength Ni-Cr-Mo alloys and methods of producing the

Details High yield strength Ni-Cr-Mo alloys and methods of producing the High yield strength Ni-Cr-Mo alloys and methods of producing the

1977-08-24

1978-12-12

Rutledge, L. Dewayne

Metal treatment

Process of modifying or maintaining internal physical...

Chemical-heat removing or burning of metal

148 127N, 148 325, C22C 1905

Patent

active

041294645

ABSTRACT:
A process and an alloy are provided for producing high strength material having good ductility to provide a high strength, corrosion resistant alloy including the steps of (1) preparing a body of material having a composition consisting essentially of by weight, about 13% to 18% chromium, about 13% to 18% molybdenum, less than 0.01% carbon, less than about 6% iron, less than about 1.25% cobalt, less than about 4% tungsten, less than 0.5% aluminum, less than 1% manganese, less than 0.5% silicon, and the balance nickel with usual transient metals and impurities in ordinary amounts, and (2) thereafter aging said body at a temperature in the range about 900.degree. and 1100.degree. F to effect an A.sub.2 B ordering reaction in the composition.

REFERENCES:
patent: 2977223 (1961-03-01), Brown
patent: 3510294 (1970-05-01), Bieber et al.
patent: 4043810 (1977-08-01), Acuncius et al.
patent: 4080201 (1978-03-01), Hodge et al.
Metals Handbook, "Heat Treating, Cleaning, Finishing", vol. 2 8th ed., ASM, p. 300.

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