Anisotropic Creep Rupture Properties of a Nickel-base Single Crystal Superalloy at High Temperature

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	Anisotropic Creep Rupture Properties of a Nickel-base Single Crystal Superalloy at High Temperature
	S. H. Zhang; J. A. Zhang; L. H. Lou
	2011
发表期刊	Journal of Materials Science & Technology
ISSN	1005-0302
卷号	27 期号:2 页码:107-112
摘要	The creep rupture properties of a single crystal superalloy were tested at 975 degrees C/255 MPa as a function of the deviation degrees from [001]. The misorientation of the specimens away from [001] distributed approximately along a line between [001]-[011] and [001]-[(1) over bar 11] boundaries in the triangle of the stereographic projection. Creep rupture lifetimes of the specimens were not sensitive to the misorientation until the deviation degree exceeded similar to 30 deg. Two steps of lattice rotation were found in all specimens during creep, first towards the [001]-[(1) over bar 11] boundary, and then to [001] or [(1) over bar 11] along the boundary. Single slip and strong asymmetric deformation were observed during the first stage of lattice rotation in specimens with large misorientation. The rotation mechanism was associated with the activated slip systems according to the calculated Schmid factors. The impact of lattice rotation on the rupture properties was also discussed.
部门归属	[zhang, shaohua; zhang, jian; lou, langhong] chinese acad sci, inst met res, superalloys div, shenyang 110016, peoples r china. [zhang, jian] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;zhang, ja (reprint author), chinese acad sci, inst met res, superalloys div, shenyang 110016, peoples r china;jianzhang@imr.ac.cn
关键词	Nickel-base Single Crystal Superalloy Stress Rupture Property Orientation Dislocation Particle Hardening Mechanisms Orientation Dependence Cmsx-4 Deformation Alloys Solidification Freckles Behavior
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WOS记录号	WOS:000288526000003
引用统计	被引频次：14[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/321006/30912
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	S. H. Zhang,J. A. Zhang,L. H. Lou. Anisotropic Creep Rupture Properties of a Nickel-base Single Crystal Superalloy at High Temperature[J]. Journal of Materials Science & Technology,2011,27(2):107-112.
APA	S. H. Zhang,J. A. Zhang,&L. H. Lou.(2011).Anisotropic Creep Rupture Properties of a Nickel-base Single Crystal Superalloy at High Temperature.Journal of Materials Science & Technology,27(2),107-112.
MLA	S. H. Zhang,et al."Anisotropic Creep Rupture Properties of a Nickel-base Single Crystal Superalloy at High Temperature".Journal of Materials Science & Technology 27.2(2011):107-112.