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Microstructure,tensile properties and compressive creep resistance of Mg-(5-8.5)%Sn-2%La alloys 被引量：1

Microstructure,tensile properties and compressive creep resistance of Mg-(5-8.5)%Sn-2%La alloys
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摘要 The microstructure,tensile properties and compressive creep resistance of permanent-mould cast Mg-(5-8.5)%Sn-2%La (mass fraction) alloys were investigated.The results show that Mg-(5-8.5)%Sn-2%La alloys are all composed ofα-Mg phase, Mg_2Sn and Mg-La-Sn compounds.Compared with those of Mg-5%Sn binary alloy,the grain size and the content of Mg_2Sn compound in Mg-5%Sn-2%La alloy are decreased.With the increase of Sn content in Mg-(5-8.5)%Sn-2%La alloys,the content of Mg_2Sn compound increases,while that of Mg-Sn-La compound changes little.In addition,the investigation suggests that the thermally stable Mg-Sn-La and Mg2Sn compounds can improve the tensile properties and compressive creep resistance of the alloys. The microstructure, tensile properties and compressive creep resistance of permanent-mould cast Mg-（5-8.5）%Sn-2%La （mass fraction） alloys were investigated. The results show that Mg-（5-8.5）%Sn-2%La alloys are all composed of a-Mg phase, Mg2Sn and Mg-La-Sn compounds. Compared with those of Mg-5%Sn binary alloy, the grain size and the content of Mg2Sn compound in Mg-5%Sn-2%La alloy are decreased. With the increase of Sn content in Mg-（5-8.5）%Sn-2%La alloys, the content of Mg2Sn compound increases, while that of Mg-Sn-La compound changes little. In addition, the investigation suggests that the thermally stable Mg-Sn-La and Mg2Sn compounds can improve the tensile properties and compressive creep resistance of the alloys.
作者 章晓萍 陈云贵 肖素芬 唐永柏 牛高 魏尚海 赵源华
机构地区 School of Materials Science and Engineering
出处 《中国有色金属学会会刊：英文版》 CSCD 2008年第A01期299-305,共7页 Transactions of Nonferrous Metals Society of China
关键词 Mg-Sn-La合金 微观组织 镁合金 力学性能 Mg-Sn-La alloy microstructure tensile properties compressive creep behavior
分类号 TG146.22 [金属学及工艺—金属材料]
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参考文献16

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同被引文献19

  • 1刘红梅,陈云贵,唐永柏,黄德明,涂铭旌,赵敏,李益国.Zr对Mg-5Sn合金显微组织与力学性能的影响[J].稀有金属材料与工程,2006,35(12):1912-1915. 被引量：13
  • 2刘红梅,陈云贵,唐永柏,黄德明,涂铭旌,赵敏,李益国.热处理对Mg-5wt%Sn合金组织与显微硬度的影响[J].材料热处理学报,2007,28(1):92-95. 被引量：17
  • 3张敏,张文征,祝国珍,余琨.Crystallography of Mg_2Sn precipitates in Mg-Sn-Mn-Si alloy[J].中国有色金属学会会刊：英文版,2007,17(6):1428-1432. 被引量：5
  • 4YANG M B,PAN F S.Effects of Y addition on as-cast microstructure and mechanical properties of Mg-3Sn-2Ca(wt.%)magnesium alloy. Materials Science Engineering A Structural Materials Properties Microstructure and Processing . 2009
  • 5HUANG Y,HORT N,ABULEIL T,KAINER K U,LIU Y.Effect of microstructural inhomogeneity on creep response of Mg-Sn alloys. Key Engineering Materials . 2007
  • 6ZHANG M,ZHANG W Z,ZHU G Z.The morphology and crystallography of polygonal Mg2Sn precipitates in a Mg-Sn-Mn-Si alloy. Scripta Materialia . 2008
  • 7NAYYERI G,MAHMUDI R.Enhanced creep properties of a cast Mg-5Sn alloy subjected to aging-treatment. Materials Science Engineering A Structural Materials Properties Microstructure and Processing . 2010
  • 8Bursik J,Bursikova V,Jiraskova Y,Abuleil T,Blawert C,Dietzel W,Hort N,Kainer K U.Microstructure and mechani- cal properties of as-cast Mg-Sn-Ca and Mg-Sn-Mn alloys. Magnesium: Proceedings of the 7th Interna- tional Conference Magnesium Alloys and Their Applications . 2006
  • 9ABULEIL T,HORT N,DIERINGA H,BLAWERT C,HUANG Y,KAINER K U.Development and characterization of a series of Mg-Sn-Ca alloys. Proceedings of the Magnesium Technology in the Global Age,45th Annual Conference of Metallurgists of CIM . 2006
  • 10Yang M B,Pan F S,Zhang J.An analysis of the de- velopment and applications of current and new Mg-Al based elevated temperature alloys. Materials Science Forum . 2005

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中国有色金属学会会刊：英文版
2008年 第A01期

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