| 稀土钐对AZ61合金组织和性能的影响 |
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| 引用本文： | 李全安,李克杰,井晓天,陈君,张兴渊.稀土钐对AZ61合金组织和性能的影响[J].材料热处理学报,2010,31(1). |
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| 作者姓名： | 李全安 李克杰 井晓天 陈君 张兴渊 |
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| 作者单位： | 1. 河南科技大学材料科学与工程学院,河南洛阳,471003
2. 西安理工大学材料科学与工程学院,陕西西安,710048 |
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| 基金项目： | 河南省杰出人才计划(084200510018) |
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| 摘 要： | 采用XRD、OM和SEM等手段研究了稀土钐(0~2.0wt%)对AZ61合金显微组织和力学性能的影响。结果表明,稀土Sm可以显著提高时效态合金从室温至175℃区间的抗拉强度和屈服强度。在AZ61合金中加入0.5wt%~2.0wt%的Sm后,合金的显微组织得到细化,Sm优先与A1形成高熔点Al2Sm弥散相。在研究范围内,加入1.5wt%Sm的合金从组织到各项力学性能最优。
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| 关 键 词： | 钐 镁合金 显微组织 力学性能 |
Effects of Sm on microstructure and mechanical properties of AZ61 alloys |
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| LI Quan-an,LI Ke-jie,JING Xiao-tian,CHEN Jun,ZHANG Xing-yuan.Effects of Sm on microstructure and mechanical properties of AZ61 alloys[J].Transactions of Materials and Heat Treatment,2010,31(1). |
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| Authors: | LI Quan-an LI Ke-jie JING Xiao-tian CHEN Jun ZHANG Xing-yuan |
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| Affiliation: | 1.School of Materials Science and Engineering;Henan University of Science and Technology;Luoyang 471003;China;2.School of Material Science and Engineering;Xi'an University of Technology;Xi'an 710048;China |
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| Abstract: | Microstructure and mechanical properties of AZ61 magnesium alloy with Sm (0 ～ 2. 0wt%) addition were investigated by meansof OM ,SEM and XRD. The results show that the addition of Sm can dramatically enhance yield strength and tensile strength of the aged alloy at 20 ℃ ～ 175 ℃. Added 0. 5wt% ～ 2.0wt% Sin, the microstructure of the aged AZ61 alloy is remarkably refined, and the dispersed high-melting point phase Al_2Sm is found in the alloy. The microstructure and mechanical properties of the AZ61 alloy with 1.5wt% Sm are optimal. |
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| Keywords: | Sm magnesium alloy microstructure mechanical properties |
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