| 热处理对Mg-3Sn-1Mn镁合金组织和性能的影响 |
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| 引用本文： | 杨明波,秦财源,潘复生.热处理对Mg-3Sn-1Mn镁合金组织和性能的影响[J].中国有色金属学会会刊,2011(10):2168-2174. |
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| 作者姓名： | 杨明波 秦财源 潘复生 |
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| 作者单位： | 重庆理工大学材料科学与工程学院;重庆理工大学汽车零部件制造及检测技术教育部重点实验室;重庆大学国家镁合金工程研究中心; |
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| 基金项目： | Project(50725413) supported by the National Natural Science Foundation of China; Project(2007CB613704) supported by the National Basic Research Program of China; Projects(2010AC4085,2009AB4134 and 2006AA4012-9-6) supported by the Science and Technology Program of Chongqing,China; Project(2010CSTC-HDLS) supported by the Program for Hundreds of Distinguished Leading Scientists of CQ CSTC,China |
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| 摘 要： | 通过光学和电子显微镜、XRD分析以及抗拉和蠕变测试,研究热处理对Mg-3Sn-1Mn镁合金组织和性能的影响。结果表明,热处理对Mg-3Sn-1Mn镁合金的组织和性能有明显影响。当在420℃固溶处理后,合金中的大多数Mg2Sn相溶入基体。但在250℃时效处理后,在时效合金的晶界和晶内析出大量细小的Mg2Sn相,从而时效合金的抗拉性能和蠕变性能被明显改善,其强化机理可能与α-Mg基体中Mg2Sn相的弥散析出有关。
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| 关 键 词： | Mg-Sn-Mn合金 热处理 显微组织 力学性能 |
Effects of heat treatment on microstructure and mechanical properties of Mg-3Sn-1Mn magnesium alloy |
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| YANG Ming-bo,,QIN Cai-yuan,PAN Fu-sheng .Materials Science , Engineering College,Chongqing University of Technology,Chongqing ,China,.Key Laboratory of Automobile Components Manufacturing , Testing Technology of the Education Ministry,.National Engineering Research Center for Magnesium Alloys,Chongqing University,Chongqing.Effects of heat treatment on microstructure and mechanical properties of Mg-3Sn-1Mn magnesium alloy[J].Transactions of Nonferrous Metals Society of China,2011(10):2168-2174. |
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| Authors: | YANG Ming-bo QIN Cai-yuan PAN Fu-sheng Materials Science Engineering College Chongqing University of Technology Chongqing China Key Laboratory of Automobile Components Manufacturing Testing Technology of the Education Ministry National Engineering Research Center for Magnesium Alloys Chongqing University Chongqing |
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| Affiliation: | YANG Ming-bo1,2,3,QIN Cai-yuan1,PAN Fu-sheng3 1.Materials Science and Engineering College,Chongqing University of Technology,Chongqing 400054,China,2.Key Laboratory of Automobile Components Manufacturing and Testing Technology of the Education Ministry,3.National Engineering Research Center for Magnesium Alloys,Chongqing University,Chongqing 400030 |
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| Abstract: | The effects of heat treatment on the microstructure and mechanical properties of Mg-3Sn-1Mn alloy were preliminarily investigated by using optical and electron microscopy,X-ray diffraction（XRD） analysis,and tensile and creep test.The results indicate that the heat treatment has an obvious effect on the microstructure and mechanical properties of the Mg-3Sn-1Mn alloy.After the solid solution treatment at 420 ℃,a majority of the Mg2Sn phases in the alloy are dissolved into the matrix.However,after the further aging treatment at 250 ℃,lots of fine Mg2Sn phases in the aged alloy are precipitated at the grain boundaries and within the grains.As a result,the tensile and creep properties of the aged alloy are significantly improved.The mechanism for the higher tensile and creep properties of the aged alloy is related to the dispersive distribution of the Mg2Sn phase in the--Mg matrix. |
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| Keywords: | Mg-Sn-Mn alloy heat treatment microstructure mechanical properties |
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