| 热处理对挤压变形AM20镁合金疲劳性能的影响 |
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| 引用本文： | 计海涛,陈克豹,王鑫,陈立佳,刘正.热处理对挤压变形AM20镁合金疲劳性能的影响[J].中国材料科技与设备,2011(1):63-65. |
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| 作者姓名： | 计海涛 陈克豹 王鑫 陈立佳 刘正 |
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| 作者单位： | [1]沈阳工业大学材料科学与工程学院,辽宁沈阳11087 [2]抚顺华晟铝材有限公司,辽宁抚顺113122 [3]沈阳经济技术开发区管委会,辽宁沈阳110141 |
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| 基金项目： | 辽宁省教育厅高等学校重点实验室资助项目（2008S163） |
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| 摘 要： | 本文研究了固溶处理和固溶＋时效处理对挤压变形AM20镁合金低周疲劳性能的影响。结果表明，不同制度的热处理对挤压变形AM20镁合金循环变形抗力的影响与外加总应变幅的高低有关；不同处理状态的挤压变形AM20镁合金的塑性应变幅、弹性应变幅与疲劳断裂时的载荷反向周次之间的关系可分别用Coffin--Manson和Basquin公式来描述。此外，不同处理状态的挤压变形AM20镁合金的循环应力幅与塑性应变幅之间呈线性关系。
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| 关 键 词： | AM20镁合金 挤压变形 热处理 低周疲劳 |
Influence of Heat Treatment on Fatigue Properties of Extruded AM20 Magnesium Alloy |
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| JI Hai -tao,CHEN Ke--bao,WANG Xin,CHEN li-jia,LIU Zheng.Influence of Heat Treatment on Fatigue Properties of Extruded AM20 Magnesium Alloy[J].Chinese Materials Science Technology & Equipment,2011(1):63-65. |
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| Authors: | JI Hai -tao CHEN Ke--bao WANG Xin CHEN li-jia LIU Zheng |
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| Affiliation: | 1. School of Materials Science and Engineering Shenyang University of Technology, Liaoning, Shenyang, 110870, China; 2. Fushun Huasheng Aluminum Materials Co. , Ltd. , Liaoning, Fushun, 113122, China; 3. Administrative Committee, Shenyang Economic and Technological Development Zone, Liaoning,Shenyang, 110141, China. ) |
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| Abstract: | The influence of solid solution and solution plus aging treatment on low--cycle fatigue property of extruded AM20 magnesium alloys were investigated. The results show that the effect of heat treatment on cyclic deformation resistance of extruded AM20 magnesium alloys in connection with imposed total strain amplitudes. For the extruded AM20 magnesium alloys with different treating states, the relationship between plastic strain amplitude and elastic strain amplitude with reversals to failure can be described by Coffin--Manson and Basquin equations respectively, and the relationship between cyclic stress amplitude and plastic strain amplitude exhibits a single slope linear behavior. |
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| Keywords: | AM20 magnesium alloy Extruded deformation Heat treatment Low--cycle fatigue |
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