Microstructure and mechanical properties of Hf and Ho doped NiAl-Cr(Mo) near eutectic alloy prepared by suction casting

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	Microstructure and mechanical properties of Hf and Ho doped NiAl-Cr(Mo) near eutectic alloy prepared by suction casting
	L. Y. Sheng; W. Zhang; J. T. Guo; H. Q. Ye
	2009
发表期刊	Materials Characterization
ISSN	1044-5803
卷号	60 期号:11 页码:1311-1316
摘要	The microstructure and mechanical properties of 0.15 at.% Hf and 0.2 at.% Ho doped Ni-33Al-28Cr-6Mo near eutectic alloys prepared by conventionally casting and suction casting were investigated. The results reveal that the addition of Hf and Ho results in the formation of HfAlNi(2) and HoNi(2)Al(3) phases respectively along the NiAl and Cr(Mo) phase interface in intercellular regions. Compared with the conventional-cast alloy, the suction casting optimizes the microstructure of the alloy further, which can be characterized by the refined NiAl/Cr(Mo) eutectic lamellar, high proportion of eutectic cell, and fine and homogeneously distributed HfAlNi(2) and HoNi(2)Al(3) phases. in addition, the compression tests show that the suction-cast alloy has better mechanical properties, which can be attributed to the fine microstructure and uniform distribution of the HfAlNi(2) and HoNi(2)Al(3) phases. (C) 2009 Elsevier Inc. All rights reserved.
部门归属	[sheng, liyuan] ind technol inst, guangzhou, guangdong, peoples r china. [sheng, liyuan] chinese acad sci, guangzhou 511458, guangdong, peoples r china. [sheng, liyuan; zhang, wei; guo, jianting; ye, hengqiang] chinese acad sci, inst met res, shenyang 110016, peoples r china.;sheng, ly (reprint author), ind technol inst, guangzhou, guangdong, peoples r china;lysheng@imr.ac.cn
关键词	Nial-based Eutectic Alloy Suction Casting Microstructure Mechanical Properties Temperature Compressive Properties Magnetic-field Treatment Rod-plate Transition Site Substitution Elements Faults Cr
URL	查看原文
WOS记录号	WOS:000271128100017
引用统计	被引频次：51[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/32276
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	L. Y. Sheng,W. Zhang,J. T. Guo,et al. Microstructure and mechanical properties of Hf and Ho doped NiAl-Cr(Mo) near eutectic alloy prepared by suction casting[J]. Materials Characterization,2009,60(11):1311-1316.
APA	L. Y. Sheng,W. Zhang,J. T. Guo,&H. Q. Ye.(2009).Microstructure and mechanical properties of Hf and Ho doped NiAl-Cr(Mo) near eutectic alloy prepared by suction casting.Materials Characterization,60(11),1311-1316.
MLA	L. Y. Sheng,et al."Microstructure and mechanical properties of Hf and Ho doped NiAl-Cr(Mo) near eutectic alloy prepared by suction casting".Materials Characterization 60.11(2009):1311-1316.