Oxidation resistant porous abradable seal member for high temper

Details Oxidation resistant porous abradable seal member for high temper Oxidation resistant porous abradable seal member for high temper

1978-07-07

1979-05-22

Hunt, Brooks H.

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75208R, 427383D, B22F 300

Patent

active

041557557

ABSTRACT:
Porous abradable sintered metal structures suitable for use as abradable seals are rendered oxidation resistant and thus suitable for high temperature service by introducing into the porous structure an intermetallic compound of aluminum with one of chromium, titanium, cobalt and nickel, which compound is then thermally reacted with the porous metal structures to form an aluminum alloy in the structure.

REFERENCES:
patent: 3406025 (1968-10-01), Hamling
patent: 3689964 (1972-09-01), Reen
patent: 3748105 (1973-07-01), Reen et al.
patent: 3817719 (1974-06-01), Schilke et al.
patent: 3879831 (1975-04-01), Rigney et al.
patent: 3961910 (1976-06-01), Baladjanian
patent: 4045596 (1977-08-01), Guiraldeng et al.
B22F 3/00

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