Effect of growth rate on the tensile properties of DS NiAl/Cr(Mo) eutectic alloy produced by liquid metal cooling technique

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	Effect of growth rate on the tensile properties of DS NiAl/Cr(Mo) eutectic alloy produced by liquid metal cooling technique; Effect of growth rate on the tensile properties of DS NiAl/Cr(Mo) eutectic alloy produced by liquid metal cooling technique
	Y. C. Liang; J. T. Guo; Y. Xie; L. Y. Sheng; L. Z. Zhou; Z. Q. Hu
	2010 ; 2010
发表期刊	Intermetallics ; Intermetallics
ISSN	0966-9795 ; 0966-9795
卷号	18 期号:3 页码:319-323
摘要	An eutectic multiphase alloy NiAl-28Cr-5.94Mo-0.05Hf-0.01Ho (at.%) was directionally solidified by liquid metal cooling technique at withdrawal rates of 3, 8 and 10 mm min(-1). The microstructure and tensile properties of alloys at room temperature, 1253 K and 1373 K were investigated. With the increase of withdrawal rate, the microstructure was refined including the refinement of eutectic cells and lamellae between the NiAl and Cr(Mo) phases. At room temperature, the alloys fractured as cleavage mode. At 1253 K, yield behavior occurred which lead to higher of tensile strength and ductility compared to those at room temperature, and the properties are independent of withdrawal rate. At 1373 K, tensile properties increase with the increase of withdrawal rate, and both the strength and elongation rate are lower than those at 1253 K. The mechanisms responsible for these changes were discussed. (C) 2009 Elsevier Ltd. All rights reserved.; An eutectic multiphase alloy NiAl-28Cr-5.94Mo-0.05Hf-0.01Ho (at.%) was directionally solidified by liquid metal cooling technique at withdrawal rates of 3, 8 and 10 mm min(-1). The microstructure and tensile properties of alloys at room temperature, 1253 K and 1373 K were investigated. With the increase of withdrawal rate, the microstructure was refined including the refinement of eutectic cells and lamellae between the NiAl and Cr(Mo) phases. At room temperature, the alloys fractured as cleavage mode. At 1253 K, yield behavior occurred which lead to higher of tensile strength and ductility compared to those at room temperature, and the properties are independent of withdrawal rate. At 1373 K, tensile properties increase with the increase of withdrawal rate, and both the strength and elongation rate are lower than those at 1253 K. The mechanisms responsible for these changes were discussed. (C) 2009 Elsevier Ltd. All rights reserved.
部门归属	[guo, j. t.] chinese acad sci, superalloys div, inst met res, shenyang 110016, peoples r china.;guo, jt (reprint author), chinese acad sci, superalloys div, inst met res, shenyang 110016, peoples r china;jtguo@imr.ac.cn ; [guo, j. t.] chinese acad sci, superalloys div, inst met res, shenyang 110016, peoples r china.;guo, jt (reprint author), chinese acad sci, superalloys div, inst met res, shenyang 110016, peoples r china;jtguo@imr.ac.cn
关键词	Nickel Aluminides Nickel Aluminides Based On Nial Based On Nial Mechanical Properties At Ambient Mechanical Properties At Ambient Temperature Temperature Mechanical Properties At High temperAtures Mechanical Properties At High temperAtures Nial-cr Nial-cr Mechanical-properties Mechanical-properties Microstructure Microstructure
URL	查看原文 ; 查看原文
WOS记录号	WOS:000274970700004 ; WOS:000274970700004
引用统计	被引频次：14[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/321006/31257
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. C. Liang,J. T. Guo,Y. Xie,et al. Effect of growth rate on the tensile properties of DS NiAl/Cr(Mo) eutectic alloy produced by liquid metal cooling technique, Effect of growth rate on the tensile properties of DS NiAl/Cr(Mo) eutectic alloy produced by liquid metal cooling technique[J]. Intermetallics, Intermetallics,2010, 2010,18, 18(3):319-323, 319-323.
APA	Y. C. Liang,J. T. Guo,Y. Xie,L. Y. Sheng,L. Z. Zhou,&Z. Q. Hu.(2010).Effect of growth rate on the tensile properties of DS NiAl/Cr(Mo) eutectic alloy produced by liquid metal cooling technique.Intermetallics,18(3),319-323.
MLA	Y. C. Liang,et al."Effect of growth rate on the tensile properties of DS NiAl/Cr(Mo) eutectic alloy produced by liquid metal cooling technique".Intermetallics 18.3(2010):319-323.