PURPOSE: To develop a fiber-reinforced metallic composite material having excellent bending strength, tensile strength, fatigue strength, etc., by using alumina fibers, carbon fibers, etc. as reinforcing fibers and an Al alloy having a specific compsn. as a matrix material.
CONSTITUTION: Al2O3 fibers or carbon fibers 1 are bundled in one direction and are packed in a stainless steel case 2 having a rectangular section. An air chamber 3 is allowed to remain on the one side of the case 2 and the end thereof is closed. After the fibers are heated together with the case 2 to about 800°C, the assembly is disposed in a casting mold 4 kept at 250°C in a way that the assembly is held afloat by a base 5. A melt 6 of an Al alloy contg. 0.4W4.5% Mg, <0.2% Cu, <0.2% Ti, and respectively ≤0.5% Si, Zn, Fe, Mn is charged in the mold 4, and is solidified under 1,000kg/cm2 pressure by a plunger element 7. The fiber reinforced metallic composite material consisting of the Al alloy as the matrix and the fiber materials as the reinforcing material is obtd.
TANAKA ATSUO
TATEMATSU YOSHIAKI
AKAI FUTAO
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