Low thermal expansion superalloy

Details Low thermal expansion superalloy Low thermal expansion superalloy

1988-01-11

1989-04-04

Dean, R.

Alloys or metallic compositions

Nickel base

Chromium containing

148410, 420443, 420445, 420453, C22C 1905

Patent

active

048184861

ABSTRACT:
Disclosed is a nickel-base alloy having a low coefficient of thermal expansion and a high degree of corrosion and oxidation resistance for use without a coating. The high strength alloy is not notch sensitive under impact and has very short term ordering to A.sub.2 B structure in aging. The alloy nominally contains, in weight percent, 8 chromium, 25 molybdenum, about 0.003 boron, about 1 iron, about 0.5 manganese, about 0.4 silicon and the balance nickel plus normal impurities.

REFERENCES:
patent: 4118223 (1978-10-01), Acuncius et al.

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