On high creep activation energy for cast NiAl-9Mo eutectic alloy

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	On high creep activation energy for cast NiAl-9Mo eutectic alloy
	W. L. Ren; J. T. Guo; G. S. Li; J. S. Wu
	2005
发表期刊	Materials Letters
ISSN	0167-577X
卷号	59 期号:12 页码:1533-1537
摘要	The stress change-strain transient creep experiment was conducted and the side surface of creep-rupture samples was examined in order to study the apparent creep activation energy for NiAl-9Mo alloy. Most of the recoverable strain is established and the strain rate decreases sharply during the initial deformation after unloading the major stress. The magnitude of the recoverable deformation increases only slightly and the strain rate changes slowly during the following course. The relationship between recoverable strain rate and relax time during the relative steady-state stage is fitted in the equation epsilon(r)-At-m (A-1.294E-4, m=-0.450). The backflow process is temperature dependent and is controlled by the flow behavior of the matrix material. The apparent creep activation energy under constant stress is a combination of the activation energy for creep flow of the matrix and that for the damage process at the interface. (c) 2005 Elsevier B.V. All rights reserved.
部门归属	shanghai jiao tong univ, sch mat sci & engn, key lab high temp mat & tests, minist educ, shanghai 200030, peoples r china. chinese acad sci, inst met res, dept superalloys, shenyang 110016, peoples r china.;ren, wl (reprint author), shanghai jiao tong univ, sch mat sci & engn, key lab high temp mat & tests, minist educ, shanghai 200030, peoples r china;wlren@sjtu.edu.cn
关键词	Intermetallic Compound Nial Mechanical Properties Creep Activation Energy Transient Creep Mechanical-properties Behavior Temperature Composites
URL	查看原文
WOS记录号	WOS:000228385500015
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/321006/35020
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. L. Ren,J. T. Guo,G. S. Li,et al. On high creep activation energy for cast NiAl-9Mo eutectic alloy[J]. Materials Letters,2005,59(12):1533-1537.
APA	W. L. Ren,J. T. Guo,G. S. Li,&J. S. Wu.(2005).On high creep activation energy for cast NiAl-9Mo eutectic alloy.Materials Letters,59(12),1533-1537.
MLA	W. L. Ren,et al."On high creep activation energy for cast NiAl-9Mo eutectic alloy".Materials Letters 59.12(2005):1533-1537.