Influence of applied stress on the gamma ' directional coarsening in a single crystal superalloy

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	Influence of applied stress on the gamma ' directional coarsening in a single crystal superalloy
	K. Y. Cheng; C. Y. Jo; T. Jin; Z. Q. Hu
	2010
发表期刊	Materials & Design
ISSN	0261-3069
卷号	31 期号:2 页码:968-971
摘要	It was found in a commercial single crystal superalloy CMSX-4 that preferential orientation of the gamma' rafting in dendrite core was not dependent on the sign of the applied stress sigma(A), but on the sign of the sum of the applied stress sigma(A) and a critical equivalent stress sigma(c). This critical equivalent stress sigma(c) caused by material inhomogeneity has been predicted previously; however it was first determined experimentally to be in the range 39.8-47.2 MPa in the present study. Moreover, it qualitatively demonstrated that the critical equivalent stress sigma(c) played a significant role in the creep behavior of superalloys at high temperature and low stress. (C) 2009 Elsevier Ltd. All rights reserved.
部门归属	[cheng, k. y.; jin, t.; hu, z. q.] chinese acad sci, inst met res, superalloy div, shenyang, peoples r china. [cheng, k. y.; jo, c. y.] korea inst mat sci, high temp mat lab, chang won, south korea.;cheng, ky (reprint author), chinese acad sci, inst met res, superalloy div, shenyang, peoples r china;kuiyucheng@hotmail.com
关键词	Nickel-base Superalloy Temperature Creep-properties Uniaxial Stress Alloy Parameters Morphology Apparent
URL	查看原文
WOS记录号	WOS:000272119800039
引用统计	被引频次：34[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/321006/31044
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	K. Y. Cheng,C. Y. Jo,T. Jin,et al. Influence of applied stress on the gamma ' directional coarsening in a single crystal superalloy[J]. Materials & Design,2010,31(2):968-971.
APA	K. Y. Cheng,C. Y. Jo,T. Jin,&Z. Q. Hu.(2010).Influence of applied stress on the gamma ' directional coarsening in a single crystal superalloy.Materials & Design,31(2),968-971.
MLA	K. Y. Cheng,et al."Influence of applied stress on the gamma ' directional coarsening in a single crystal superalloy".Materials & Design 31.2(2010):968-971.