PURPOSE: To obtain an aluminum matrix composite excellent in characteristics by dispersing specified wt.% of nitrides into an aluminum alloy matrix having a specified chemical compsn. and producing it by a powder metallurgical method.
CONSTITUTION: As a matrix, an aluminum allay contg., by weight, under the standard in which the matrix is taken as 100wt.%, 10 to 20% Ni and to 25% Si and contg. at least 1.0 to 3.0% Mo, and the balance Al is used. In the matrix, the grains of one or ≥ two kinds among nitrides and borides are dispersed by 0.5 to l0% in total in the case the whole body of the composite contg. the matrix is taken as 100wt.%, which is produced by a powder metallurgical method. In this way, the composite excellent in wear resistance, rigidity and creep properties can be obtd.
MIURA HIROHISA
YAMADA YASUHIRO
MICHIOKA HIROBUMI
KUSUI JUN
TANAKA AKIMORI
TOYO ALUMINIUM KK