Specialized metallurgical processes – compositions for use therei – Compositions – Consolidated metal powder compositions
Patent
1985-07-15
1986-08-19
Lechert, Jr., Stephen J.
Specialized metallurgical processes, compositions for use therei
Compositions
Consolidated metal powder compositions
75125, 75129, 419 2, 419 5, 419 6, 419 27, 419 29, 419 38, 419 60, B22F 300
Patent
active
046067680
ABSTRACT:
A copper infiltrated ferrous powder metal part infiltrated with copper or a copper alloy characterized as having after infiltration a residual uninfiltrated porosity of less than about 7 volume percent and a maximum pore size of the residual uninfiltrated porosity of less than about 125 micrometers, said porosity and pore size values being taken from a worst field of view in a functionally critical area of said metal part.
REFERENCES:
patent: 2768917 (1956-10-01), Pettibone
patent: 3343954 (1967-09-01), Brab
patent: 3459547 (1969-08-01), Andreotti et al.
The Production and Properties of Novel Sintered Alloys (Infiltrated Alloys), Berg und Huttenmannische Monatshefte, vol. 94 (No. 8/9), 1949, pp. 284-294.
The International Journal of Powder Metallurgy & Powder Technology, vol. 17, No. 4, 1981, pp. 277 thru 289--Rostoker & Clemens.
Copper Infiltration of Steel: Properties and Applications, Progress in Powder Metallurgy (H. S. Nayar et al, editors), vol. 39, pp. 163-182.
Strengthening of Iron and Powder Compacts by Infiltration", Modern Developments in Powder Metallurgy (Hausner & Smith, editors), 1973, pp. 135-147.
Glancy Stephen
Klar Erhard
Svilar Mark
Lechert Jr. Stephen J.
SCM Corporation
Thomas Richard H.
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