摘要
The effects of various Mg-Sr master alloys(conventional as-cast,rapidly-solidified,rolled and solutionized) on microstructural refinement of ZK60 magnesium alloy were investigated.The results indicate that the refinement efficiency of various Mg-Sr master alloys in ZK60 alloy is different.The rolled Mg-Srmaster alloy is found to have relatively higher refinement efficiency than the conventional as-cast,solutionized and rapidly-solidified Mg-Sr master alloys.After being treated with the rolled Mg-Sr master alloy,the ZK60 alloy obtains the minimum average grain size of 33μm.The difference of various Mg-Sr master alloys in refinement efficiency might be related to the initial microstructure change of various Mg-Sr master alloys.
The effects of various Mg-Sr master alloys （conventional as-cast, rapidly-solidified, rolled and solutionized） on microstructural refinement of ZK60 magnesium alloy were investigated. The results indicate that the refinement efficiency of various Mg-Sr master alloys in ZK60 alloy is different. The rolled Mg-Srmaster alloy is found to have relatively higher refinement efficiency than the conventional as-cast, solutionized and rapidly-solidified Mg-Sr master alloys. After being treated with the rolled Mg-Sr master alloy, the ZK60 alloy obtains the minimum average grain size of 33 um. The difference of various Mg-Sr master alloys in refinement efficiency might be related to the initial microstructure change of various Mg-Sr master alloys.
出处
《中国有色金属学会会刊：英文版》
CSCD
2008年第A01期50-54,共5页
Transactions of Nonferrous Metals Society of China
基金
Project(50725413)supported by the National Natural Science Foundation of China for Distinguished Young Scholar
Project(2007CB613704)supported by the National Basic Research Program of China
关键词
镁合金
锶镁合金
铸件
有色金属
magnesium alloy
Mg-Sr master alloy
microstructural refinement
strontium
