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Effect of temperature on mechanical behavior of AZ31 magnesium alloy 被引量：6

Effect of temperature on mechanical behavior of AZ31 magnesium alloy
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摘要 Strain rate sensitivity and tension/compression asymmetry of AZ31 magnesium alloy at different temperatures and strainrates were investigated.Both of mechanical behaviors are temperature dependent.Strain rate sensitivity increases with increasingtemperature.Thermally activated slip is the source of strain rate sensitivity.At the temperature below or near 373 K,strain ratesensitivity is very little.Tension/compression asymmetry in yielding decreases with increasing temperature.Twinning is the reasonof tension/compression asymmetry.At the temperature above or near 573 K,the material shows little tension/compressionasymmetry of the flow stress. Strain rate sensitivity and tension/compression asymmetry of AZ31 magnesium alloy at different temperatures and strain rates were investigated. Both of mechanical behaviors are temperature dependent. Strain rate sensitivity increases with increasing temperature. Thermally activated slip is the source of strain rate sensitivity. At the temperature below or near 373 K, strain rate sensitivity is very little. Tension/compression asymmetry in yielding decreases with increasing temperature. Twinning is the reason of tension/compression asymmetry. At the temperature above or near 573 K, the material shows little tension/compression asymmetry of the flow stress.
作者 谭成文 胥珊娜 王鲁 陈志永 王富耻 才鸿年
机构地区 School of Materials Science and Engineering School of Materials Science and Engineering
出处 《中国有色金属学会会刊：英文版》 EI CSCD 2007年第1期41-45,共5页 Transactions of Nonferrous Metals Society of China
关键词 镁合金 温度 机械性能 流动应力 AZ31 magnesium alloy strain rate sensitivity tension/compression asymmetry temperature effect
分类号 TG113 [金属学及工艺—物理冶金]
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参考文献15

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中国有色金属学会会刊：英文版
2007年 第1期

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