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镁合金超塑性拉伸空洞分数的计算方法 被引量：1

Calculation Method of Cavity Fraction of Magnesium Alloy in Tensile Test
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摘要 提出了一种通过测量拉伸应力变化计算超塑性空洞分数的方法,并推导出空洞分数的计算公式。对AZ31镁合金空洞分数的计算结果表明:温度、应变量和应变速率是影响材料超塑性拉伸空洞分数的主要因素。 A method was proposed and an equation was deduced for calculating cavity fractions of materials by simply measuring stress during super-plastic deformation.The calculated results of cavity fraction of AZ31 alloy during super-plastic tensile test show that the temperature,strain and strain rate are the main factors to effect cavities fraction.
作者 张诗昌 阎立明 陈伟 陈长军
机构地区 武汉科技大学钢铁冶金与资源利用教育部重点实验室
出处 《热加工工艺》 CSCD 北大核心 2010年第20期23-24,28,共3页 Hot Working Technology
基金 湖北省教育厅重点项目(Z200511007)
关键词 镁合金 超塑性 空洞分数 magnesium alloy superplasticity cavity fraction
分类号 TF146.22 [冶金工程—冶金物理化学] TG113.2 [金属学及工艺—物理冶金]
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参考文献5

  • 1Bae D H,Ghosh A K.Cavity formation and early growth in a superplastic Al-Mg alloy[J].Acta.Materilia,2002,50:511-523.
  • 2张诗昌,陈伟,韦中新,朱明.AZ31镁合金的超塑性研究[J].武汉科技大学学报,2008,31(5):547-551. 被引量：8
  • 3Lee C J,Huang J C.Cavitation characteristics in AZ31 Mg alloys during LTSP or HSRSP[J].Acta.Materialia,2004,52:3111-3122.
  • 4Hidetoshi Somekawa,Toshiji Mukai.Effect of dominant diffusion process on cavitation behavior in superplastic Mg-Al-Zn alloy[J].Scripta Materialia,2007,57:1008-1011.
  • 5张诗昌,陈伟,胡衍生.AZ31镁合金超塑性拉伸载荷失稳的临界应变量[J].热加工工艺,2009,38(10):16-17. 被引量：2

二级参考文献12

  • 1宋玉泉,索忠林,管志平,刘颖.材料参数对拉伸失稳影响的力学解析[J].金属学报,2006,42(4):337-340. 被引量：27
  • 2Yin D L, Zhang K F, Wang G F. Superplastccity and cavitation in AZ31 Mg alloy at elevated temperatures [J]. Materials Letters. 2005,59: 1714- 1718.
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  • 10吴诗悖.金属超塑性理论[M].北京:国防工业出版社,1997.

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热加工工艺
2010年 第20期

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