高圧鋳造法により作製されたSiCウィスカー強化-Al合金材料の引張り強度と疲労特性

概要

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This paper describes the experimental study on the mechanical properties of the SiC-whisker reinforced 6061-aluminum alloy composite materials which contain the volume faction of 18% SiC-whisker and were fabricated by squeeze casting. The tensile test and the rotary bending fatigue test were carried out focusing on the effects of heat treatment, hot isostatic pressing (HIP)and hot rolling. The tensile strength at the room temperature increased by HIP and T-6 heat treatments. The elastic modulus of the hot-rolled specimen sampled to the rolling direction was the highest among the examined ones. The fatigue strength at the room temperature increased by HIP and T-6 heat treatments. The hot rolling had the remarkable effect to the fatigue property of the composite, that is, the fatigue strength was the highest to the rolling direction and the lowest to the rectangular direction at the room temperature. The rotary bending fatigue strength decreased as the experimental temperature was increased.
足利工業大学の論文
2000-10-27