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
刊名	Materials Letters
	2005
卷号	59 期号:12 页码:1533-1537
关键词	intermetallic compound NiAl mechanical properties creep activation energy transient creep mechanical-properties behavior temperature composites
ISSN号	0167-577X
中文摘要	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.
原文出处	://WOS:000228385500015
公开日期	2012-04-14
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/35020]
专题	金属研究所_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.