Mechanical properties of hypereutectic Al-Si alloy by semisolid processing

作     者：李树索 赵爱民 毛卫民 钟雪友 

作者机构：北京科技大学 北京 

出 版 物：《中国有色金属学会会刊：英文版》 (Transactions of Nonferrous Metals Society of China)

年 卷 期：2000年第10卷第4期

页      面：441-444页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：Project ( 5 97710 11)supportedbytheNationalNaturalScienceFoundationofChina 

主　　题：semisolid processing hypereutectic Al Si alloy tensile strength elongation 

摘      要：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 rosette α phases 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 rosette α phases precipitation is the main reason of better elongation.