S0401-1-3 バルクメカニカルアロイング法による高強度耐熱マグネシウム複合材料の開発(粉末成形とその評価(1))

Abstract

The utilization of the magnesium alloy in the engine parts of the automobiles and motorcycles is expected to improve fuel efficiency. But the creep resistance at 150℃〜250℃ is required in the engine parts, which prevents the use of the magnesium alloy. In this research, magnesium alloy chip mixed with calcium oxide powder was processed into a magnesium composite billet by the original bulk mechanical alloying method, and it was extruded into a round bar, which had high strength and heat resistant properties. Mechanical properties of the magnesium composites, such as the creep resistance at 175℃ and the tensile strength at 250℃, were reported herein.