Wear-resistant sintered contact material, wear-resistant...

Details Wear-resistant sintered contact material, wear-resistant... Wear-resistant sintered contact material, wear-resistant...

2007-10-16

2007-10-16

King, Roy (Department: 1742)

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

C075S246000

Reexamination Certificate

active

11216115

ABSTRACT:
A wear-resistant iron-based sintered contact material is provided which is sintered by powder sintering so as to have high density, high seizure resistance and wear resistance. A wear-resistant iron-based sintered composite contact component composed of the wear-resistant iron-based sintered contact material sinter-bonded to a backing metal and its producing method are also provided. To this end, at least Cr7C3-type carbide and/or M6C-type carbide which have an average particle diameter of 5 μm or more are precipitately dispersed in an amount of 20 to 50% by volume within an iron-based martensite parent phase which has a hardness of HRC 50 or more even when tempered at up to 600° C.

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