| 时效处理和La含量对AZ91合金组织和力学性能的影响 |
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| 引用本文： | 王社斌,祁小叶,张金玲,刘璐,许并社.时效处理和La含量对AZ91合金组织和力学性能的影响[J].金属学报,2011(6). |
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| 作者姓名： | 王社斌 祁小叶 张金玲 刘璐 许并社 |
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| 作者单位： | 太原理工大学材料科学与工程学院;太原理工大学教育部新材料界面与工程重点实验室; |
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| 基金项目： | 国家自然科学基金项目50901048; 山西省回国留学人员科研项目2008-39资助~~ |
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| 摘 要： | 借助XRD,SEM,EDS和显微硬度仪等分析测试手段,研究了时效处理和La含量对真空精炼的AZ91合金显微组织和力学性能的影响.结果表明:时效处理可以使第二类β相大量析出,且β相呈不连续层片状沿晶界两侧分布.随La含量的增加,β相的尺寸逐渐减小,而α相的尺寸则呈现先减小后增加的趋势.铸态和时效态试样的力学性能参数均随La含量的增加呈现出先增加后减小的趋势.时效态试样的抗拉强度、屈服强度、延伸率和Vickers硬度分别比铸态试样提高12.65%,16.85%,13.71%和37.24%.当La含量达到0.1648%时,抗拉强度、屈服强度、延伸率和Vickers硬度分别达到276 MPa,208 MPa,13.85%和132HV.
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| 关 键 词： | AZ91镁合金 时效 力学性能 显微组织 |
EFFECT OF AGING TREATMENT AND La CONTENT ON MICROSTRUCTURE AND MECHANICAL PROPERTIES OF AZ91 ALLOY |
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| WANG Shebin,QI Xiaoye,ZHANG Jinling,XU Bingshe College of Materials Science , Engineering,Taiyuan University of Technology,Taiyuan Key Laboratory of Interface Science , Engineering in Advanced Materials Taiyuan University of Technology,Ministry of Education,Taiyuan.EFFECT OF AGING TREATMENT AND La CONTENT ON MICROSTRUCTURE AND MECHANICAL PROPERTIES OF AZ91 ALLOY[J].Acta Metallurgica Sinica,2011(6). |
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| Authors: | WANG Shebin QI Xiaoye ZHANG Jinling XU Bingshe College of Materials Science Engineering Taiyuan University of Technology Taiyuan Key Laboratory of Interface Science Engineering in Advanced Materials Taiyuan University of Technology Ministry of Education Taiyuan |
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| Affiliation: | WANG Shebin~(1,2)),QI Xiaoye~(1)),ZHANG Jinling~(1,LIU Lu~(1)),XU Bingshe~(1,2)) 1)College of Materials Science and Engineering,Taiyuan University of Technology,Taiyuan 030024 2)Key Laboratory of Interface Science and Engineering in Advanced Materials Taiyuan University of Technology,Ministry of Education,Taiyuan 030024 |
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| Abstract: | |
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| Keywords: | AZ91 magnesium alloy aging mechanical property microstructure |
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