张清,李全安,井晓天,张兴渊

• 1:西安理工大学材料科学与工程学院
• 2:河南科技大学材料科学与工程学院

摘要(Abstract)：

采用合金熔炼、组织分析和拉伸试验,研究了Mg-10Y-1.5Sm合金经过固溶时效后的组织和力学性能。结果表明,合金的组织由α-Mg基体和Mg24Y5相组成,细小的Mg24Y5颗粒相均匀弥散地分布在α-Mg基体上;Sm加入后没有形成新相,而是通过固溶作用,进一步强化了α-Mg基体和Mg24Y5相;合金在200～300℃之间的抗拉强度均大于200 MPa,伸长率均为3%左右,与室温时相比没有发生显著变化;合金的力学性能优于Mg-10Y合金,最高使用温度可达350℃。

关键词(KeyWords)： Mg-10Y-1.5Sm合金;组织;力学性能

Abstract:

Keywords:

基金项目(Foundation): 河南省杰出人才计划项目(084200510018);; 河南省基础与前沿技术研究计划项目(092300410184)

作者(Author): 张清,李全安,井晓天,张兴渊

DOI: 10.13289/j.issn.1009-6264.2011.01.006

参考文献(References)：

• [1]Mordike B L,Ebert T.Magnesium:properties-applications-potential[J].Materials Science and Engineering A,2001,302:37-45.
• [2]Luo A A.Recent magnesium alloy development for automotive powertrain applications[J].Materials Science Forum,2003,419-422(1):57-66.
• [3]闫蕴琪,张廷杰,邓炬,等.耐热镁合金的研究现状与发展方向[J].稀有金属材料与工程,2004,33(6):561-565.YAN Yun-qi,ZHANG Ting-jie,DENG Ju,et al.Research and development of heat resistant Mg alloys[J].Rare Metal Materials and Engineering,2004,33(6):561-565.
• [4]张静,潘复生,李忠盛.耐热镁合金材料的研究和应用现状[J].铸造,2004,53(10):770-774.ZHANG Jing,PAN Fu-sheng,LI Zhong-sheng.Status of research and application of heat resistant magnesium alloys[J].Foundry,2004,53(10):770-774.
• [5]丁桦.耐热镁合金的合金设计及组织控制[J].材料与冶金学报,2005,4(4):286-290.DING Hua.Alloy design and microstructure control of heat resistant Mg alloys[J].Journal of Materials and Metallurgy,2005,4(4):286-290.
• [6]谢建昌,李全安,李建弘,等.耐热镁合金及其开发思路[J].铸造技术,2008,29(1):124-127.XIE Jian-chang,LI Quan-an,LI Jian-hong,et al.Heat resistant magnesium alloys and developing strategies[J].Foundry Technology,2008,29(1):124-127.
• [7]杨素媛,张丽娟,张堡垒.稀土镁合金的研究现状及应用[J].稀土,2008,29(4):81-86.YANG Su-yuan,ZHANG Li-juan,ZHANG Bao-lei.Research status of RE-Mg alloy[J].Chinese Rare Earths,2008,29(4):81-86.
• [8]张新明,彭卓凯,陈健美,等.耐热镁合金及其研究进展[J].中国有色金属学报,2004,14(9):1443-1450.ZHANG Xin-ming,PENG Zhuo-kai,CHEN Jian-mei,et al.Heat-resistant magnesium alloys and their development[J].The Chinese Journal ofNonferrous Metals,2004,14(9):1443-1450.
• [9]薛山,孙扬善,朱天柏,等.二元稀土镁合金Mg-La和Mg-Nd的组织和性能[J].铸造,2005,54(9):888-891.XUE Shan,SUN Yang-shan,ZHU Tian-bo,et al.Investigation on the properties of Mg-La and Mg-Nd binary magnesium-rare earth alloys[J].Foundry,2005,54(9):888-891.
• [10]朱蓓蓓,孙扬善,贾迪,等.Mg-Sm系合金的显微组织及力学性能[J].东南大学学报:自然科学版,2009,39(3):610-614.ZHU Bei-bei,SUN Yang-shan,JIA Di,et al.Microstructure and mechanical properties of Mg-Sm alloys[J].Journal of Southeast University:NaturalScience Edition,2009,39(3):610-614.
• [11]Son H T,Lee J S,Hong J M,et al.Microstructure and mechanical properties of Mg-Al-Ca-Sm alloys at high temperature[J].Key EngineeringMaterials,2007,345-346(I):653-656.
• [12]LI Ke-jie,LI Quan-an,JING Xiao-tian,et al.Effects of Sm addition on microstructure and mechanical properties of Mg-6Al-0.6Zn alloy[J].ScriptaMaterialia,2009,60(12):1101-1104.

文章评论(Comment)：