Metal sintered body composite material and a method for producin

Specialized metallurgical processes – compositions for use therei – Compositions – Consolidated metal powder compositions

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75246, 419 14, 419 25, 419 27, 419 53, 419 54, 419 55, B22F 312

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058580565

ABSTRACT:
A metal sintered body composite material which can exhibit superior seizure resistance even when light metal is softened, and a method for producing the same. The production method uses iron base raw material powder including C and one of Cr, Mo, V, W, Mn, and Si, and comprises the steps of forming and sintering a powder compressed article so as to obtain a porous metal sintered body having a space lattice structure having pores, impregnating the pores of the porous metal sintered body with an aluminum alloy and solidifying the aluminum alloy, applying aging treatment by heating and holding the composite material at an aging treatment temperature range, whereby a metal constituting the porous metal sintered body has a micro-Vickers hardness of 200 to 800.

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