Effect of Hf on microstructure and high-temperature strength of a cast NiAl/Cr(Mo) alloy

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	Effect of Hf on microstructure and high-temperature strength of a cast NiAl/Cr(Mo) alloy
	C. Y. Cui; J. T. Guo; Y. H. Qi; H. Q. Ye
	2001
发表期刊	Materials Transactions
ISSN	1345-9678
卷号	42 期号:8 页码:1700-1704
摘要	A NiAl/Cr(Mo) alloy modified with Hf was fabricated by a vacuum induction melted and drop cast. The alloy was mainly composed of NiAl matrix, Cr(Mo) and Hf-rich phase distributed between NiAl and Cr(Mo) phase boundary and phase transition was also studied. Then it was hot isostically pressed (HIPed) at 1523 K, 200 MPa for 4.5 h. Its high temperature compressive behavior was studied and the deformation features of the alloy could be adequately described by standard power law which is usually used to characterize creep behavior for various metallic material, The stress exponent n as well as the activation energy Q was calculated by fitting the experimental data to the power-law and temperature-compensated power lax equation, The possible strengthening mechanism was discussed.
部门归属	chinese acad sci, inst met res, shenyang 110016, peoples r china.;cui, cy (reprint author), chinese acad sci, inst met res, shenyang 110016, peoples r china
关键词	Phose Transition Deformation Hot Isostic Pressing Nial-28cr-5.8mo-0.2hf In-situ Composites Mechanical-properties Compressive Properties Nial-cr Creep Phase Transition Behavior Ni2alti 1200-k
URL	查看原文
WOS记录号	WOS:000171112800047
引用统计	被引频次：13[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/321006/36621
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 Hf on microstructure and high-temperature strength of a cast NiAl/Cr(Mo) alloy[J]. Materials Transactions,2001,42(8):1700-1704.
APA	C. Y. Cui,J. T. Guo,Y. H. Qi,&H. Q. Ye.(2001).Effect of Hf on microstructure and high-temperature strength of a cast NiAl/Cr(Mo) alloy.Materials Transactions,42(8),1700-1704.
MLA	C. Y. Cui,et al."Effect of Hf on microstructure and high-temperature strength of a cast NiAl/Cr(Mo) alloy".Materials Transactions 42.8(2001):1700-1704.