High temperature bearing alloy and method of producing the same

Details High temperature bearing alloy and method of producing the same High temperature bearing alloy and method of producing the same

1992-06-11

1994-03-29

Nelson, Peter A.

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75244, 75246, 419 11, 419 12, 419 13, 419 26, 419 29, 419 38, C22C 2900, B22F 900

Patent

active

052980529

ABSTRACT:
An Ni-based bearing alloy consisting, by weight, of 9-30% Cr, 5-19% Fe, 0.1-1.5% Si, 2-22% Co, 1.4-11.0% Mo, and the balance Ni and incidental impurities, said alloy having a matrix in which hard particles of a Co-Mo-Cr-Si alloy and/or BN are uniformly dispersed in weight ratios of 5 to 35% and not more than 5.0, respectively. The Ni-based alloy matrix provides superior heat resistance. Hard particles of Co-Mo-Cr-Si alloy uniformly dispersed in the matrix improve sliding characteristic with or without uniform dispersion of Bn as a solid lubricant, whereby the bearing alloy exhibits superior heat resistance and sliding characteristic when used in high temperature oxidizing atmosphere.

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