Finite element analysis of gamma ' directional coarsening in Ni-based superalloys

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	Finite element analysis of gamma ' directional coarsening in Ni-based superalloys
	L. Zhou; S. X. Li; C. R. Chen; Y. C. Wang; Q. S. Zang; K. Lu
	2002
发表期刊	Zeitschrift Fur Metallkunde
ISSN	0044-3093
卷号	93 期号:4 页码:315-321
摘要	A three-dimensional anisotropic finite element analysis was performed to calculate the hydrostatic pressure, elastic strain energy density and von Mises stress associated with periodically arranged cubic gamma' precipitates in the gamma matrix of Ni-based superalloys. Inhomogeneous and anisotropic elastic media are considered, the effects of different lattice misfit and external loads are investigated. The results show that the asymmetry of the hydrostatic pressure, the strain energy density and von Mises stress could be used to predict the gamma' directional coarsening. The contribution of hydrostatic pressure to the total driving force is smaller than that of von Mises stress and the elastic strain energy. The reason was briefly discussed.
部门归属	chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;zhou, l (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china
关键词	Finite Element Analysis Ni-based Superalloys Rafting Coarsening Single-crystals Microstructural Evolution Computer-simulation Internal-stresses Creep-deformation Uniaxial Stress Strain-energy Driving-force Shape Changes Mechanism
URL	查看原文
WOS记录号	WOS:000175664000011
引用统计	被引频次：19[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/321006/36587
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	L. Zhou,S. X. Li,C. R. Chen,et al. Finite element analysis of gamma ' directional coarsening in Ni-based superalloys[J]. Zeitschrift Fur Metallkunde,2002,93(4):315-321.
APA	L. Zhou,S. X. Li,C. R. Chen,Y. C. Wang,Q. S. Zang,&K. Lu.(2002).Finite element analysis of gamma ' directional coarsening in Ni-based superalloys.Zeitschrift Fur Metallkunde,93(4),315-321.
MLA	L. Zhou,et al."Finite element analysis of gamma ' directional coarsening in Ni-based superalloys".Zeitschrift Fur Metallkunde 93.4(2002):315-321.