Fenicraly alloy and abradable seals made therefrom

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

C - Chemistry, Metallurgy

22

C

75/98

C22C 38/40 (2006.01) C22C 49/08 (2006.01) F01D 5/28 (2006.01)

Patent

CA 1084309

FeNiCrAlY ALLOY AND ABRADABLE SEALS MADE THEREFROM ABSTRACT OF THE DISCLOSURE Abradable seals for compressors and turbines are made of fibers and powders of an alloy consisting essen- tially 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 alumin- um, 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.

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