Wear-resistant sintered iron-based alloy and process for produci

Details Wear-resistant sintered iron-based alloy and process for produci Wear-resistant sintered iron-based alloy and process for produci

1987-01-14

1989-06-20

Lechert, Jr., Stephen J.

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75240, C22C 2902

Patent

active

048406651

ABSTRACT:
A wear-resistant sintered iron-based alloy and a process for producing the alloy are described, wherein the alloy comprises a first phase having a martensite composition which comprises from 0.5 to 3.0 wt % of Cr, from 0.4 to 1.0 wt % of Mn, from 0.1 to 0.4 wt % of Mo, and the balance of Fe, based on the total amount of said first phase; a second phase having a martensite and Cr carbide composition which comprises from 10 to 20 wt % of Cr and the balance of Fe, based on the total amount of said second phase; and from 1.0 to 2.5 wt % of C, based on the total amount of said alloy; wherein said first phase and said second phase are present as a mixture containing from 10 to 80% by volume of said second phase, based on the total volume of said alloy; and said alloy is substantially free from any residual austenite.

REFERENCES:
patent: 3525607 (1970-08-01), Holtz, Jr.
patent: 4194910 (1980-03-01), Mal et al.
patent: 4345942 (1982-08-01), Takahashi et al.
patent: 4345943 (1982-08-01), Takahashi et al.
patent: 4360383 (1982-11-01), Takahashi et al.
patent: 4702771 (1987-10-01), Takagi et al.
Henderson, Metallurgical Dictionary, 1953, pp. 203-204.

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