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Effects of various Mg-Sr master alloys on microstructural refinement of ZK60 magnesium alloy |
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| Authors: | CHENG Ren-ju PAN Fu-sheng YANG Ming-bo TANG Ai-tao National Engineering Research Center for Magnesium Alloys Chongqing University Chongqing China College of Materials Science Engineering College of Materials Science Engineering Chongqing Institute of Technology Chongqing |
| Affiliation: | CHENG Ren-ju,PAN Fu-sheng,YANG Ming-bo,TANG Ai-tao 1.National Engineering Research Center for Magnesium Alloys,Chongqing University,Chongqing 400044,China,2.College of Materials Science , Engineering,3.College of Materials Science , Engineering,Chongqing Institute of Technology,Chongqing 400050 |
| Abstract: | 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-Sr master 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 μm. 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. |
| Keywords: | magnesium alloy Mg-Sr master alloy microstructural refinement strontium |
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