Microstructure and room temperature mechanical properties of NiAl-Cr(Mo)-(Hf, Dy) hypoeutectic alloy prepared by injection casting

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	Microstructure and room temperature mechanical properties of NiAl-Cr(Mo)-(Hf, Dy) hypoeutectic alloy prepared by injection casting
	L. Y. Sheng; F. Yang; T. F. Xi; Y. F. Zheng; J. T. Guo
	2013
发表期刊	Transactions of Nonferrous Metals Society of China
ISSN	1003-6326
卷号	23 期号:4 页码:983-990
摘要	The NiAl-Cr(Mo)-(Hf,Dy) hypoeutectic alloys were prepared by conventional casting and injection casting techniques respectively, and their microstructure and room temperature mechanical properties were investigated. The results reveal that with the addition of Hf and Dy, the Ni2AlHf Heusler phase and Ni5Dy phase form along the NiAl/Cr(Mo) phase boundaries in intercellular region. By the injection casting method, some Ni2AlHf Heusler phase and Ni5Dy phase transform into Hf and Dy solid solutions, respectively. Moreover, the microstructure of the alloy gets good optimization, which can be characterized by the fine interlamellar spacing, high proportion of eutectic cell area and homogeneously distributed fine Ni2AlHf, Ni5Dy, Hf solid solution and Dy solid solutions. Compared with conventional-cast alloy, the room temperature mechanical properties of injection-cast alloy are improved obviously.
部门归属	[sheng, li-yuan ; xi, ting-fei] peking univ, shenzhen inst, shenzhen 518057, peoples r china. [sheng, li-yuan ; zheng, yu-feng] peking univ, coll engn, beijing 100871, peoples r china. [yang, fang] shenzhen baoan int airport, shenzhen airline, shenzhen 518128, peoples r china. [guo, jian-ting] chinese acad sci, inst met res, shenyang 110016, peoples r china. ; sheng, ly (reprint author), peking univ, shenzhen inst, shenzhen 518057, peoples r china. ; lysheng@yeah.net
关键词	Nial Based Hypoeutectic Alloy Hf Dy Injection Casting Microstructure Mechanical Properties Magnetic-field Treatment Eutectic Alloy Compressive Properties Extrusion Behavior Elements Hip
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/71452
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	L. Y. Sheng,F. Yang,T. F. Xi,et al. Microstructure and room temperature mechanical properties of NiAl-Cr(Mo)-(Hf, Dy) hypoeutectic alloy prepared by injection casting[J]. Transactions of Nonferrous Metals Society of China,2013,23(4):983-990.
APA	L. Y. Sheng,F. Yang,T. F. Xi,Y. F. Zheng,&J. T. Guo.(2013).Microstructure and room temperature mechanical properties of NiAl-Cr(Mo)-(Hf, Dy) hypoeutectic alloy prepared by injection casting.Transactions of Nonferrous Metals Society of China,23(4),983-990.
MLA	L. Y. Sheng,et al."Microstructure and room temperature mechanical properties of NiAl-Cr(Mo)-(Hf, Dy) hypoeutectic alloy prepared by injection casting".Transactions of Nonferrous Metals Society of China 23.4(2013):983-990.