Processing Effects on Grain Refinement of AZ31 Magnesium Alloy Treated with a Commercial Al-10Sr Master Alloy |
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| Authors: | Mingbo Yang Fusheng Pan |
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| Affiliation: | (1) Materials Science & Engineering College, Chongqing Institute of Technology, Chongqing, 400050, China;(2) Materials Science & Engineering College, Chongqing University, Chongqing, 400030, China |
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| Abstract: | The effects of Sr amount and melt holding time on the grain refinement of AZ31 magnesium alloy treated with a commercial Al-10Sr
master alloy are investigated. The effects of solutionizing, rolling, and remelting of commercial Al-10Sr master alloy on
the grain refinement of AZ31 magnesium alloy are also investigated. An increase in Sr amount from 0.01 to 0.1 wt.% or melt
holding time from 20 to 80 min causes the grain size of AZ31 alloy treated with the commercial Al-10Sr master alloy to gradually
decrease. In addition, the solutionizing, rolling, or remelting of commercial Al-10Sr master alloy can improve the refinement
efficiency of the master alloy to AZ31 alloy, and the improvement resulting from the remelting is best obvious, followed by
rolling and solutionizing, respectively. |
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| Keywords: | Al4Sr phase AZ31 magnesium alloy commercial Al-10Sr master alloy grain refinement |
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