Journal of South China University of Technology (Natural Science Edition) ›› 2006, Vol. 34 ›› Issue (7): 17-20,25.

• Materials Science & Technology • Previous Articles     Next Articles

Superplastic Deformation Behavior of ZE10 Magnesium Alloy Sheet

Liu Ying1  Li Yuan-yuan2  Chen Wei-ping2  Zhang Da-tong2  Li Wei1   

  1. 1.Dept.of Material Science and Engineering,Jinan Univ.,Guangzhou 510632,Guangdong,China; 2.Key Laboratory for Advanced Metallic Materials Processing and Forming of Guangdong,South China Univ.of Tech.,Guangzhou 510640,Guangdong,China
  • Received:2005-10-08 Online:2006-07-25 Published:2006-07-25
  • Contact: 刘英(1966-)，男，讲师，博士，主要从事有色合金制备与成形技术的研究． E-mail:liuying20001y@126.com
  • About author:刘英(1966-)，男，讲师，博士，主要从事有色合金制备与成形技术的研究．
  • Supported by:

    广东省自然科学基金资助项目(04300124)；华南理工大学金属材料制备与成形广东省重点实验室开放基金资助项目(2005002)

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Abstract:

In order to investigate the superplasticity and the microstructure evolution during the superplastic deforma-tion of ZE10 magnesium alloy sheet,the high-temperature tensile experiments of the sheet were carried out at thetemperatures of 200 to 400℃and at strain rates of 5.5×10-4 to 2.2×10-2s-1,with the microstructure of thesheet being also analyzed. The results indicate that ZE10 magnesium alloy sheet possesses good superplasticity at 350℃and 400℃,the corresponding elongations at the strain rate of 5.5×10-4s-1respectively reaching 227% and 270%,that the original average grain size—25 to 30μm—of ZE10 magnesium alloy sheet scarcely changes during the superplastic deformation,that the microstructure maintains equiaxed-grain dynamically,and that there exist typical cavities on the fracture surface when the sheet is fractured.

Key words: ZE10 magnesium alloy, superplasticity, microstructure, property