High impact strength powder metal part and method for making same
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United States of America Patent
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Aug 19, 1986
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N/A
app pub date -
Jul 15, 1985
filing date -
Jul 15, 1985
priority date (Note) -
Expired
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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.
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