Forgeable nickel alloy

Details Forgeable nickel alloy Forgeable nickel alloy

1996-06-03

1998-05-26

Simmons, David A.

Metal treatment

Stock

Age or precipitation hardened or strengthened

148428, 148419, 20443, 205811, C22C 1905

Patent

active

057558973

ABSTRACT:
An austenitic carbide-strengthened nickel/chromium/iron foregeable alloy comprises (in % by weight) 0.2 to 0.4% carbon, 25 to 30% chromium, 8 to 11% iron, more than 2.4 to 3.0% aluminum, 0.01 to 0.15% yttrium, 0.01 to 0.20% titanium, 0.01 to 0.20% niobium, 0.01 to 0.10% zirconium, 0.001 to 0.015% magnesium, 0.001 to 0.010% calcium, max 0.030% nitrogen, max 0.50% silicon, max 0.25% manganese, max 0.020% phosphorus, max 0.010% sulfur, balance nickel and unavoidable melting conditioned impurities. The quantity of precipitable carbon C* is in the range 0.083% to 0.300%, where C*=C.sub.tot. -(C.sub.diss. +C.sub.fix.Ti +C.sub.fix.Nb +C.sub.fix.Zr).

REFERENCES:
patent: 3607243 (1971-09-01), Eiselstein et al.
patent: 4784830 (1988-11-01), Ganesan et al.
patent: 5302097 (1994-04-01), Brill
patent: 5330591 (1994-07-01), Vasseur
patent: 5603891 (1997-02-01), Brill

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