Effect of hot isostatic pressing on microstructure and mechanical property of NiAl/Cr(Mo,Hf) composite

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	Effect of hot isostatic pressing on microstructure and mechanical property of NiAl/Cr(Mo,Hf) composite
	C. Y. Cui; J. T. Guo; Y. H. Qi; H. Q. Ye
	2001
发表期刊	Materials Letters
ISSN	0167-577X
卷号	51 期号:5 页码:444-450
摘要	A vacuum induction melted and drop cast ingot of NiAl-28Cr-5.5Mo-0.5Hf (at.%) was directionally solidified under Ar atmosphere in an Al2O3-SiO2 ceramic mold by the standard Bridgman method, then was hot isostatically pressed (HIP) at 1300 degreesC/100 MPa for 2 h and aged at 1050 degrees 'C for 40 h. The composite was mainly composed of three phases, i.e. the lamellar Cr(No), the NiAl matrix and Heusler phase, and the interface between NiAl and Cr(Mo) was atomically flat. The mechanical properties of the composite were also tested. It was found that the brittle-to-ductile transition temperature (BDTT) of the composite was dependent on strain rate and the apparent activation energy is approximately 596 kJ/mol, which may be responsible for the high BDTT. (C) 2001 Elsevier Science B.V. All rights reserved.
部门归属	chinese acad sci, inst met res, lab atom imaging solid, shenyang 110015, peoples r china.;cui, cy (reprint author), chinese acad sci, inst met res, lab atom imaging solid, shenyang 110015, peoples r china
关键词	Hip Microstructure Heusler Phase Bdtt To-ductile Transition Temperature Behavior Alloys Phase Cr
URL	查看原文
WOS记录号	WOS:000172173200012
引用统计	被引频次：3[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/321006/36620
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	C. Y. Cui,J. T. Guo,Y. H. Qi,et al. Effect of hot isostatic pressing on microstructure and mechanical property of NiAl/Cr(Mo,Hf) composite[J]. Materials Letters,2001,51(5):444-450.
APA	C. Y. Cui,J. T. Guo,Y. H. Qi,&H. Q. Ye.(2001).Effect of hot isostatic pressing on microstructure and mechanical property of NiAl/Cr(Mo,Hf) composite.Materials Letters,51(5),444-450.
MLA	C. Y. Cui,et al."Effect of hot isostatic pressing on microstructure and mechanical property of NiAl/Cr(Mo,Hf) composite".Materials Letters 51.5(2001):444-450.