Cyclic deformation and fatigue damage behaviors of [(1)over-bar414] oriented Ag single crystal

doi:10.1080/14786430903130847

IMR OpenIR

	Cyclic deformation and fatigue damage behaviors of [(1)over-bar414] oriented Ag single crystal
	Li, P.; Zhang, Z. F.; Li, S. X.; Wang, Z. G.
通讯作者	Zhang, Z. F.(zhfzhang@imr.ac.cn)
	2009
发表期刊	PHILOSOPHICAL MAGAZINE
ISSN	1478-6435
卷号	89 期号:32 页码:2903-2920
摘要	The cyclic deformation and fatigue damage behaviors of [(1) over bar 414] oriented Ag single crystal were investigated in terms of cyclic stress-strain (CSS) curves, surface slip morphologies and dislocation configurations. A clear plateau region appears in the CSS curve of the [(1) over bar 414] Ag single crystal over a strain range of gamma(pl) = 1: 5 x 10(-4) -4 x 10(-3) with average saturation shear stress amplitude of similar to 26.6 MPa. Corresponding ladder-like persistent slip bands (PSBs) also appear in the [(1) over bar 414] Ag single crystal. Compared with other Cu and Ag single crystals with single or double-slip orientations, the saturation resolved shear stresses of the critical double-slip-oriented single crystals, no matter whether for Cu or Ag, are significantly higher than that of the single-slip-oriented ones. Combining the two-phase model with the hindering effect of sessile jogs on screw dislocation movement, a three-phase model is proposed to rationalize the increase of saturation stress. In addition, the surface slip morphologies of the [(1) over bar 414] Ag single crystal were characterized by the interactions between the primary and secondary SBs. According to the difference in their slippage, their interactions can be divided into three types, which could simultaneously appear in different local areas of the same crystal. The current experimental results extend the fundamental understanding of the intrinsic fatigue damage behaviors of fcc metal crystals.
关键词	silver single crystal cyclic stress-strain curve persistent slip band sessile jog two-phase model
资助者	Chinese Academy of Sciences ; National Outstanding Young Scientist Foundation ; National Basic Research Program of China
DOI	10.1080/14786430903130847
收录类别	SCI
语种	英语
资助项目	Chinese Academy of Sciences ; National Outstanding Young Scientist Foundation[50625103] ; National Basic Research Program of China[2010CB631006]
WOS研究方向	Materials Science ; Mechanics ; Metallurgy & Metallurgical Engineering ; Physics
WOS类目	Materials Science, Multidisciplinary ; Mechanics ; Metallurgy & Metallurgical Engineering ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:000271871900002
出版者	TAYLOR & FRANCIS LTD
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/321006/96191
专题	中国科学院金属研究所
通讯作者	Zhang, Z. F.
作者单位	Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Li, P.,Zhang, Z. F.,Li, S. X.,et al. Cyclic deformation and fatigue damage behaviors of [(1)over-bar414] oriented Ag single crystal[J]. PHILOSOPHICAL MAGAZINE,2009,89(32):2903-2920.
APA	Li, P.,Zhang, Z. F.,Li, S. X.,&Wang, Z. G..(2009).Cyclic deformation and fatigue damage behaviors of [(1)over-bar414] oriented Ag single crystal.PHILOSOPHICAL MAGAZINE,89(32),2903-2920.
MLA	Li, P.,et al."Cyclic deformation and fatigue damage behaviors of [(1)over-bar414] oriented Ag single crystal".PHILOSOPHICAL MAGAZINE 89.32(2009):2903-2920.