Iron-based sintered sliding product

Details Iron-based sintered sliding product Iron-based sintered sliding product

1980-02-20

1982-08-17

Hunt, Brooks H.

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75231, 75243, 188251A, 188251M, B22F 300, B22F 500

Patent

active

043447953

ABSTRACT:
An iron-based sintered sliding product having improved contact fitness and resistance to wear, in which 0.1 to 3 wt. % free graphite and Fe--P--C ternary alloy phase of hardness MHv 300 to 850 having over 3% to 20% of area are dispersed into an iron-based matrix containing either one selected from 0.1 to 1 wt. % Sn and 0.1 to 1 wt. % Zn, and 1 to 10 wt. % Cu and 0.3 to 1 wt. % C. As a modified embodiment of the present invention, an alloy containing Fe--Mo as a main component may be dispersed into the iron-based matrix in place of the aforesaid Fe--P--C ternary alloy phase. Said Fe--P--C ternary alloy phase may be prepared by mixing a single metal element, Fe, C and P into the powdered raw material of the iron-based matrix. Alternatively, said Fe--P--C ternary alloy phase may be prepared by mixing Fe--P--C alloy powder into the powdered raw material of the iron-based matrix. Further, an alloy containing Fe--Mo as a main component may be prepared by mixing Fe--Mo--Si alloy powder into the powdered raw material of the iron-based matrix.

REFERENCES:
patent: 2213523 (1940-09-01), Jones et al.
patent: 2226520 (1940-12-01), Lenel
patent: 2370396 (1945-02-01), Cordiano
patent: 3120698 (1964-02-01), Elliott
patent: 3863318 (1975-02-01), Niimi et al.
patent: 4230491 (1980-10-01), Behnke
patent: 4233073 (1980-11-01), Takemura

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