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.
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 a 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 alpha phases precipitation is the main reason of better elongation.
出处
《中国有色金属学会会刊：英文版》
EI
CSCD
2000年第4期441-444,共4页
Transactions of Nonferrous Metals Society of China
基金
Project ( 5 97710 11)supportedbytheNationalNaturalScienceFoundationofChina
