Anisotropic stress rupture properties of the nickel-base single crystal superalloy SRR99

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	Anisotropic stress rupture properties of the nickel-base single crystal superalloy SRR99
	G. M. Han; J. J. Yu; Y. L. Sun; X. F. Sun; Z. Q. Hu
	2010
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	527 期号:21-22 页码:5383-5390
摘要	The influence of orientation on the stress rupture properties of a single crystal superalloy SRR99 was investigated at temperatures of 760 and 1040 degrees C. It is found that the creep anisotropic behaviour is pronounced at the lower temperature of 760 degrees C and the stress rupture life ranks in the order [0 0 1] > [1 1 1] > [0 1 1]. Despite the anisotropy of stress rupture life is evidently reduced at the higher temperature, the [1 1 1] orientation exhibits the longest life. At 760 degrees C, EBSD (electron back scattered diffraction) was adopted to measure the lattice rotation and the deduced results indicate that the dominant slip systems are (1 1 2) {1 1 1} during stress rupture test. At 1040 degrees C, the ranking order of the stress rupture life is [1 1 1] > [0 0 1] > [0 1 1] and the single crystal close to [0 1 1] orientation still shows the poorest life. In the [0 0 1] and [1 1 1] samples, regular-gamma raft structure is formed compared with [0 1 1] samples. Further observations made by TEM investigations reveal the underlying deformation mechanisms for crystals with orientations near [0 0 1], [0 1 1] and [1 1 1] under two test conditions. (C) 2010 Elsevier B.V. All rights reserved.
部门归属	[han, g. m.; yu, j. j.; sun, y. l.; sun, x. f.; hu, z. q.] chinese acad sci, inst met res, shenyang 110016, peoples r china. [han, g. m.] chinese acad sci, grad univ, beijing 100049, peoples r china.;yu, jj (reprint author), chinese acad sci, inst met res, shenyang 110016, peoples r china;jjyu@imr.ac.cn
关键词	Single Crystal Superalloy Stress Rupture Anisotropy Deformation Mechanism Matrix Dislocations Temperature Creep Cmsx-4 Orientation Mechanisms Alloy
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WOS记录号	WOS:000281175300005
引用统计	被引频次：41[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/321006/31135
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	G. M. Han,J. J. Yu,Y. L. Sun,et al. Anisotropic stress rupture properties of the nickel-base single crystal superalloy SRR99[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2010,527(21-22):5383-5390.
APA	G. M. Han,J. J. Yu,Y. L. Sun,X. F. Sun,&Z. Q. Hu.(2010).Anisotropic stress rupture properties of the nickel-base single crystal superalloy SRR99.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,527(21-22),5383-5390.
MLA	G. M. Han,et al."Anisotropic stress rupture properties of the nickel-base single crystal superalloy SRR99".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 527.21-22(2010):5383-5390.