Alloys for high temperature service in aggressive environments

Details Alloys for high temperature service in aggressive environments Alloys for high temperature service in aggressive environments

1998-12-08

1999-12-07

Yee, Deborah

Alloys or metallic compositions

Nickel base

Chromium containing

420447, C22C 1905

Patent

active

059978090

ABSTRACT:
An alloy resistant to carburization and high temperature oxidation. The alloy consists essentially of, by weight percent, 27 to 35 chromium, 0 to 7 iron, about 3 to 4.4 aluminum, 0 to 0.4 titanium, 0.2 to 3 niobium, 0.12 to 0.5 carbon, 0 to 0.05 zirconium, 0.002 to 0.05 total cerium and yttrium, 0 to I manganese, 0 to I silicon, 0 to 0.5 calcium plus magnesium, 0 to 0.1 boron and balance nickel plus incidental impurities.

REFERENCES:
patent: 4312682 (1982-01-01), Herchenroeder
patent: 4762681 (1988-08-01), Tassen et al.
patent: 4882125 (1989-11-01), Smith et al.

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