Fenicraly alloy and abradable seals made therefrom

Details Fenicraly alloy and abradable seals made therefrom Fenicraly alloy and abradable seals made therefrom

1976-03-29

1978-03-21

Hunt, Brooks H.

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75235, 75246, 75 12BE, 415174, 428605, B22F 100

Patent

active

040802043

ABSTRACT:
Abradable seals for compressors and turbines are made of fibers and powders of an alloy consisting essentially of iron, nickel, chromium, aluminum, and yttrium. The alloy preferably contains 22-27 weight percent nickel, 18-22 weight percent chromium, 9-15 weight percent aluminum, 0.0005-0.05 weight percent yttrium, with the balance iron. Heat treatment of the alloy provides an aluminum rich phase which is uniformly dispersed throughout the alloy.

REFERENCES:
patent: 2930521 (1960-03-01), Koehring
patent: 3042365 (1962-07-01), Curtis
patent: 3817719 (1974-06-01), Schilke et al.
patent: 3912552 (1975-10-01), Schultz et al.

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