Mechanical properties of hypereutectic Al-Si alloy by semisolid processing

来源期刊：中国有色金属学报(英文版)2000年第4期

论文作者：李树索 赵爱民 毛卫民 钟雪友

文章页码：441 - 444

Key words：semisolid processing; hypereutectic Al-Si alloy; tensile strength; elongation

Abstract: Semisolid hypereutectic Al-Si alloy billets were obtained by electromagnetic stirring, in which microstructure of primary silicon gets rounder and there are a large number of rosetteαphases appearing. Compared with conventional gravity die casting alloys, the tensile strength and elongation of semisolid forming hypereutectic Al-Si get obviously improved. Change of primary silicon morphology of semisolid hypereutectic Al-Si alloy made by electromagnetic stirring is the main reason of better tensile strength, and a large number of rosetteαphases precipitation is the main reason of better elongation.