| Nd对铸态及轧制态Mg-Zn-Y合金组织及性能的影响 |
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| 引用本文： | 高秋然,祝要民,任凤章,方世杰,张旦闻,赵士阳.Nd对铸态及轧制态Mg-Zn-Y合金组织及性能的影响[J].特种铸造及有色合金,2012,32(6):558-561. |
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| 作者姓名： | 高秋然 祝要民 任凤章 方世杰 张旦闻 赵士阳 |
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| 作者单位： | 1. 河南科技大学材料科学与工程学院
2. 洛阳理工学院机电工程系 |
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| 基金项目： | 河南省重点攻关项目，河南省科技创新人才计划项目，河南省高校科技创新人才支持计划项目，洛阳市应用技术研究与开发基金 |
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| 摘 要： | 在Mg-3.5Zn-0.6Y合金中添加不同含量(0、0.4%、0.8%、1.2%)的稀土元素Nd,研究其对Mg-3.5Zn-0.6Y合金铸态及轧制态显微组织与力学性能的影响。结果表明,添加0.4%、0.8%的Nd的合金晶粒较细小,呈等轴晶,并且含有Mg41Nd5和Mg24Y5相。镁合金在热轧时第二相被破碎,晶粒变得更加细小。铸态合金经400℃×12h扩散退火,轧制态合金经400℃×0.5h退火后抗拉强度及伸长率最大,分别为234MPa、14.6%和265MPa、11.7%。
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| 关 键 词： | Mg-Zn-Y合金 显微组织 抗拉强度 |
Effect of Nd on Microstructure and Properties of As-cast and Hot-roiled Mg-Zn-Y Alloys |
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| Gao Qiuran
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Zhu Yaomin
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Ren Fengzhang
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Fang Shijie
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Zhang Danwen
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Zhao Shiyang.Effect of Nd on Microstructure and Properties of As-cast and Hot-roiled Mg-Zn-Y Alloys[J].Special Casting & Nonferrous Alloys,2012,32(6):558-561. |
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| Authors: | Gao Qiuran Zhu Yaomin Ren Fengzhang Fang Shijie Zhang Danwen Zhao Shiyang |
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| Affiliation: | 1(1.School of Materials Science and Engineering,Henan University of Science and Technology;2.Department of Mechanical and Electrical Engineering,Luoyang Institute of Science and Technology) |
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| Abstract: | Effects of rare-earth Nd additions including 0,0.4%,0.8% and 1.2% on microstructure and mechanical proeprties of as-cast and hot-rolled Mg-3.5Zn-0.6Y alloys were investigated,respectively.The results show that the grain exhibits fine equiaxed crystals in the Mg-3.5Zn-0.6Y alloys with 0.4% and 0.8% Nd addition,and the second phases Mg41Nd5 and Mg24Y5 can be observed in the microstructure.The second phases are crushed during hot-rolling,resulting in the finement of grains.The tensile strength and elongation of as-cast Mg-3.5Zn-0.6Y-0.4Nd alloy with annealing at 400 ℃ for 12 h and of hot-rolled one with annealing at 400 ℃ for 0.5 h reach up to 234 MPa,265 MPa and 14.6%,11.7%,respectively. |
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| Keywords: | Mg-Zn-Y Alloy Microstructure Tensile Strength |
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