| Mg-2.54Nd-0.26Zn-0.32Zr合金组织分析 |
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| 引用本文： | 宁志良,曹福洋,刘洪汇,孙剑飞,杜剑锋.Mg-2.54Nd-0.26Zn-0.32Zr合金组织分析[J].稀有金属材料与工程,2009,38(11):1997-2000. |
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| 作者姓名： | 宁志良 曹福洋 刘洪汇 孙剑飞 杜剑锋 |
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| 作者单位： | 1. 哈尔滨工业大学,黑龙江,哈尔滨,150001
2. 哈尔滨东安发动机(集团)有限公司,黑龙江,哈尔滨,150066 |
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| 摘 要： | 采用XRD、DTA、OM和TEM研究Mg-2.54Nd-0.26Zn-0.32Zr合金铸态和热处理后的相组成、相变温度、微观组织.研究表明:Mg-2.54Nd-0.26Zn-0.32Zr合金铸态组织析出相主要是分布在晶界的块状Mg_(12)Nd稀土化合物,只有少量的片状和粒状Mg_(12)Nd相分布在晶界和晶内;T6处理后Mg_(12)Nd以相互交叉的片状形式团簇状分布在基体中,形成方式为点状析出相聚集而成.
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| 关 键 词： | Mg-2.54Nd-0.26Zn-0.32Zr合金 组织分析 α-Mg α-Mg |
| 收稿时间： | 2008/10/27 0:00:00 |
| 修稿时间： | 2009/8/12 0:00:00 |
Microstructure Analysis of Mg-2.54Nd-0.26Zn-0.32Zr Alloy |
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| Ning Zhiliang,Cao Fuyang,Liu Honghui,Sun Jianfei and Du Jianfeng.Microstructure Analysis of Mg-2.54Nd-0.26Zn-0.32Zr Alloy[J].Rare Metal Materials and Engineering,2009,38(11):1997-2000. |
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| Authors: | Ning Zhiliang Cao Fuyang Liu Honghui Sun Jianfei and Du Jianfeng |
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| Affiliation: | Harbin Institute of Technology, Harbin 150001, China;Harbin Institute of Technology, Harbin 150001, China;Harbin Dongan Engine (Group) Co., Ltd., Harbin 150056, China;Harbin Institute of Technology, Harbin 150001, China;Harbin Institute of Technology, Harbin 150001, China |
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| Abstract: | The microstructures of both as-cast and heat treated Mg-2.54Nd-0.26Zn-0.32Zr alloy were investigated by means of XRD, DTA, OM and TEM in this study. The results show that the massive Mg-RE phase Mg12Nd is mainly distributed on the grain boundary of as-cast Mg-2.54Nd-0.26Zn-0.32Zr. Only a small amount of flaky and grainy Mg12Nd distribute in the intracrystalline and grain boundary. The Mg12Nd phase is uniformly distributed on the matrix as crossed plate gathered by spotted state phase after solution and aging treatment. |
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| Keywords: | Mg_(12)Nd Mg-2 54Nd-0 26Zn-0 32Zr alloy microstructure analysis Mg_(12)Nd |
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