Metal treatment – Compositions – Heat treating
Patent
1976-06-01
1977-10-18
Dean, R.
Metal treatment
Compositions
Heat treating
75122, 75134F, 75170, 75171, 148 32, 148 325, C22C 3000, C22C 1905
Patent
active
040544699
ABSTRACT:
A directionally solidified multivariant eutectic .gamma.+.beta. nickel-base superalloy casting having improved high temperature strength and oxidation resistance properties is provided comprising a two phase eutectic structure containing, on a weight percent basis, 7.0-12.0 aluminum, 5.0-40.0 chromium, 3.0-35.0 iron and the balance being nickel. Embedded within the .gamma. phase nickel-base matrix are aligned eutectic .beta. phase (primarily (Ni,Fe,Al) )reinforcing lamellae.
REFERENCES:
patent: 3671223 (1972-06-01), Thompson et al.
Cohen Joseph T.
Dean R.
General Electric Company
Squillaro Jerome C.
Turner F. Wesley
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