ALUMINUM ALLOY FOR SLIDE BEARING, SLIDE BEARING AND METHOD FOR PRODUCING SAME

摘要

Disclosed is an aluminum alloy for a slide bearing having excellent fatigue resistance, which is obtained by providing an Al-Zr-Cr aluminum alloy in an annealed and tempered state with high-temperature strength at 180-200°C. Specifically disclosed is an aluminum alloy for a slide bearing having excellent fatigue resistance, which is composed of an Al alloy rolled sheet that has a composition containing 3-7% by mass of Mg, 0.1-0.3% by mass of Cr and 0.1-0.2% by mass of Zr, with the balance made up of Al and unavoidable impurities. The aluminum alloy for a slide bearing has a structure that is composed of an Al matrix, in which Mg is solid-solved, and fine Cr and Zr particles.