High tensile elongation of a directionally solidified NiAl multiphase alloy at high temperatures

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	High tensile elongation of a directionally solidified NiAl multiphase alloy at high temperatures
	C. Y. Cui; J. T. Guo; Y. H. Qi; H. Q. Ye
	2005
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	396 期号:1-2 页码:194-201
摘要	The ductility of a directionally solidified Ni-30Al-5Mo-0.5Hf (at.%) alloy was examined in various experimental conditions of temperatures and strain rates. Tensile tests revealed that the present alloy exhibited tensile elongation from room temperature to high temperature, in particular, the large elongations, 140-160%, were observed at high temperatures, depending on the temperature and strain rate. The value of strain rate sensitivity index, m, of 0.27 and the apparent activation energy of 413 kJ/mol were measured. Based on the observed mechanical behavior and microstructures, the mechanism responsible for this large elongation operative at high temperatures was suggested. (c) 2005 Elsevier B.V. All rights reserved.
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;cui.chuanyong@nims.go.jp
关键词	Directional Solidification Nial Alloy Ductility Dynamic Recovery And Recrystallization Mechanical-properties Single-crystals Behavior Fracture Superplasticity Microstructure Deformation Composites Compound
URL	查看原文
WOS记录号	WOS:000228740500026
引用统计	被引频次：4[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/321006/34827
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. High tensile elongation of a directionally solidified NiAl multiphase alloy at high temperatures[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2005,396(1-2):194-201.
APA	C. Y. Cui,J. T. Guo,Y. H. Qi,&H. Q. Ye.(2005).High tensile elongation of a directionally solidified NiAl multiphase alloy at high temperatures.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,396(1-2),194-201.
MLA	C. Y. Cui,et al."High tensile elongation of a directionally solidified NiAl multiphase alloy at high temperatures".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 396.1-2(2005):194-201.