Comparation about Refining Efficiency to Microstructure of AZ31 Magnesium Alloy for Sr Master Alloys

Abstract:

In the present work, the influence of Al-Sr and Mg-Sr master alloys on the as-cast microstructure of the AZ31 magnesium alloy was investigated,and the refinement efficiencies of both master alloys were also analyzed and compared. The research results indicate that both the Al-Sr and Mg-Sr master alloys have obvious refinement effect on the as-cast microstructure of the AZ31 magnesium alloy, and the refinement efficiency of the Mg-Sr master alloys was better than that of the Al-Sr master alloys. The mechanisms for the differences of grain refinement efficiency between Al-Sr and Mg-Sr master alloys on the AZ31 magnesium alloys were also discussed.

• Periodical: Materials Science Forum (Volume 816)
• Pages: 498-503
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.816.498
• Online since: April 2015
• Authors: Ren Ju Cheng*, Bo Liu, Bin Jiang, Su Qin Luo, Qing Shan Yang, Wen Jun Liu, Fu Sheng Pan
• Keywords: Al-Sr Master Alloy, AZ31 Magnesium Alloy, Grain Refinement, Mg-Sr Master Alloy

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