Mg—Sr—Y中间合金对AZ31镁合金铸态组织的影响 |
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引用本文: | 张晓霞,陈刚,屈卫棋,范培耕,彭晓东,马宏.Mg—Sr—Y中间合金对AZ31镁合金铸态组织的影响[J].重庆石油高等专科学校学报,2011(5):111-113. |
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作者姓名: | 张晓霞 陈刚 屈卫棋 范培耕 彭晓东 马宏 |
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作者单位: | [1]重庆科技学院,重庆401331 [2]重庆大学,重庆400050 [3]国家镁合金工程研究中心,重庆400050 |
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基金项目: | 重庆科技学院冶金与材料工程学院大学生科技创新项目 |
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摘 要: | 采用光学金相显微镜、扫描电子显微镜、能谱仪、XRD等对Mg—Sr-Y中间合金、AZ31-0.5%Sr和AZ31-0.5%Sr-1.5%Y的组织、相结构进行研究。结果表明,Mg—Sr—Y中间合金的组织由基体α—Mg相、沿晶界分布的枝晶状的共晶组织(Mg17Sr2+Mg11Y)组成,Sr、Y可以细化AZ31镁合金晶粒,其细化效果与Sr、Y含量有关。
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关 键 词: | Mg—Sr-Y AZ31 铸态组织 细化 |
The Effect of Mg-Sr-Y Master Alloy on the As-cast Structure of AZ31 Magnesium Alloy |
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Authors: | ZHANG Xiao-xia CHEN Gang QU Wei-qi PENG Xiao-dong MA Hong |
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Affiliation: | 1 .Chongqing University of Science and Technology, Chongqing 401331 ; 2 Chongqing University, Chongqing 400050 ; 3.National Engineering Research Center for Magnesium Alloy, Chongqing 400050) |
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Abstract: | In this paper, OM, SEM and EDS were used to research the as-cast structures and phase of Mg-Sr-Y master alloy, AZ31-0.6% Sr alloy and AZ31-0.5% Sr-1.5%Y alloy. The results indicate that the structure of Mg-Sr-Y master alloy are comprised of α-Mg phase and dendritic eutectic (Mg17Sr2+Mg11Y)along the grain boundary. The effect of Mg-Sr-Y master alloy on AZ31 alloy depends on the amount of Sr and Y. |
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Keywords: | Mg-Sr-Y AZ31 as-cast structure refine |
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