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| Sm对Mg-6Al-1.2Y-0.9Nd合金组织和性能的影响 | |
| 引用本文： | 李克杰,李全安,井晓天,陈 君,张兴渊,张 清.Sm对Mg-6Al-1.2Y-0.9Nd合金组织和性能的影响[J].稀有金属材料与工程,2010,39(1):96-100. |
| 作者姓名： | 李克杰 李全安 井晓天 陈 君 张兴渊 张 清 |
| 作者单位： | 1. 西安理工大学,陕西,西安,710048;河南科技大学,河南,洛阳,471003 2. 河南科技大学,河南,洛阳,471003 3. 西安理工大学,陕西,西安,710048 |
| 基金项目： | 河南省杰出人才计划(084200510018);;洛阳市科技攻关项目(0602018A);;河南科技大学重大预研专项(2007ZD002) |
| 摘 要： | 采用XRD、OM、SEM和EDS等手段研究Sm对Mg-6Al-1.2Y-0.9Nd合金微观组织和力学性能的影响。结果表明,合金中加入Sm后,Sm优先与A1形成高熔点Al2Sm弥散颗粒质点,当Sm含量(1.5%～2.0%)较高时,合金内出现针状Mg12Nd相。在研究范围内,随Sm含量的增加,合金的常温和高温力学性能略有升高然后降低;而合金的延伸率呈现不断降低的趋势。合金的拉伸断口为具有塑性特征的准解理断裂。 |
| 关 键 词： | 钐 镁合金 显微组织 力学性能 |
| 收稿时间： | 1/3/2009 12:00:00 AM |
Effects of Sm on Microstructures and Mechanical Properties of Mg-6Al-1.2Y-0.9Nd Alloys |
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| Li Kejie,Li Quanan,Jing Xiaotian,Chen Jun,Zhang Xingyuan and Zhang Qing.Effects of Sm on Microstructures and Mechanical Properties of Mg-6Al-1.2Y-0.9Nd Alloys[J].Rare Metal Materials and Engineering,2010,39(1):96-100. | |
| Authors: | Li Kejie Li Quanan Jing Xiaotian Chen Jun Zhang Xingyuan and Zhang Qing |
| Abstract: | Microstructures and mechanical properties of Mg-6Al-1.2Y-0.9Nd magnesium alloy with Sm addition were investigated through OM,SEM,EDS and XRD.The results show that Sm combines firstly with Al to form dispersed,high-melting-point particles which are mainly Al2Sm phase.When the mass fraction of Sm is high from 1.5% to 2.0%,the acicular Mg12Nd phase appears in the alloy.With the increase of Sm content within the range from 0 to 2.0%,the tensile strength of alloys at ambient and elevated temperature firstly incr... |
| Keywords: | Sm magnesium alloy microstructure mechanical properties |
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