Deformation Microstructures of Mg-3Al-1Zn Magnesium Alloy Compressed Over Wide Regions of Temperature and Strain Rate

被引:0
作者
Jia Zhou
Luo-xing Li
Bo Liu
Yang-sheng Liu
机构
[1] College of Materials Science and Engineering,State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body
[2] Hunan University,Automotive Engineering Institute Body Technology Research Department
[3] Chongqing Changan Automobile CO. LTD,undefined
来源
Journal of Materials Engineering and Performance | 2011年 / 20卷
关键词
dynamic recrystallization; magnesium alloy; microstructure; necklace mechanism; wrought;
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学科分类号
摘要
Hot compression tests of Mg-3Al-1Zn magnesium alloy were performed at temperatures between 300-500 °C and strain rates between 0.03 and 90 s−1. Dynamic recrystallization of the alloy is developed by the necklace mechanism. At the temperature of 300 °C, structures are fully dynamic recrystallized except at intermediate strain rates. As temperature rises to 400 °C, structures are fully recrystallized at all strain rates. The abnormal grain size increase at high strain rate is attributed to the temperature rising of the deforming sample.
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页码:133 / 138
页数:5
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