An analysis of the effects of symmetrical tilt grain boundaries on the plastic deformation

IMECH-IR > 力学所知识产出(1956-2008)

	An analysis of the effects of symmetrical tilt grain boundaries on the plastic deformation
	Zhang YW(张永伟); Wang ZQ(王自强)
发表期刊	Acta Mechanica Solida Sinica
	1995
卷号	8 期号:2 页码:95-109
ISSN	0894-9166
摘要	A numerical investigation on the simple polycrystals containing three symmetrical tilt grain boundaries (GBs) is carried out within the framework of crystal plasticity which precisely considers the finite deformation and finite lattice rotation as well as elastic anisotropy. The calculated results show that the slip geometry and the redistribution of stresses arising from the anisotropy and boundary constraint play an important role in the plastic deformation in the simple polycrystals. The stress level along GB is sensitive to the load level and misorientation, and the stresses along QB are distributed nonuniformly. The GB may exhibit a softening or strengthening feature, which depends on the misorientation angle. The localized deformation bands usually develop accompanying the GB plastic deformation, the impingement of the localized band on the GB may result in another localized deformation band. The yield stresses with different misorientation angles are favorably compared with the experimental results.
关键词	Simple Polycrystal Grain Boundary Bicrystal Interfaces Crystals Molybdenum Bimaterial Fracture
收录类别	SCI
语种	英语
WOS记录号	WOS:A1995RR43500001
WOS研究方向	Materials Science ; Mechanics
WOS类目	Materials Science, Multidisciplinary ; Mechanics
引用统计	被引频次：30[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/39202
专题	力学所知识产出(1956-2008)
推荐引用方式 GB/T 7714	Zhang YW,Wang ZQ. An analysis of the effects of symmetrical tilt grain boundaries on the plastic deformation[J]. Acta Mechanica Solida Sinica,1995,8,2,:95-109.
APA	张永伟,&王自强.(1995).An analysis of the effects of symmetrical tilt grain boundaries on the plastic deformation.Acta Mechanica Solida Sinica,8(2),95-109.
MLA	张永伟,et al."An analysis of the effects of symmetrical tilt grain boundaries on the plastic deformation".Acta Mechanica Solida Sinica 8.2(1995):95-109.

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