Toward the existence of ultrafast diffusion paths in Cu with a gradient microstructure: Room temperature diffusion of Ni

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	Toward the existence of ultrafast diffusion paths in Cu with a gradient microstructure: Room temperature diffusion of Ni
	Z. B. Wang; K. Lu; G. Wilde; S. Divinski
	2008
发表期刊	Applied Physics Letters
ISSN	0003-6951
卷号	93 期号:13
摘要	Room temperature diffusion of (63)Ni in Cu with a gradient microstructure prepared by surface mechanical attrition treatment (SMAT) was investigated by applying the radiotracer technique. The results reveal significant penetration of Ni into the nanostructured layer. The relevant diffusivity is higher than that along the conventional high-angle grain boundaries by about six orders of magnitude. This behavior is associated with a higher energy state of internal interfaces produced via plastic deformation. The diffusivity in the top surface layer is somewhat smaller than that in the subsurface layer. This fact is related to nanotwin formation in the former during SMAT. (C) 2008 American Institute of Physics.
部门归属	[wang, z. b.; wilde, g.; divinski, s.] univ munster, inst mat phys, d-48149 munster, germany. [wang, z. b.; lu, k.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;wang, zb (reprint author), univ munster, inst mat phys, wilhelm klemm str 10, d-48149 munster, germany;zbwang@imr.ac.cn divin@uni-muenster.de
关键词	Mechanical Attrition Treatment Grain-boundary Diffusion Copper Nickel
URL	查看原文
WOS记录号	WOS:000259794100024
引用统计	被引频次：15[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/321006/33169
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Z. B. Wang,K. Lu,G. Wilde,et al. Toward the existence of ultrafast diffusion paths in Cu with a gradient microstructure: Room temperature diffusion of Ni[J]. Applied Physics Letters,2008,93(13).
APA	Z. B. Wang,K. Lu,G. Wilde,&S. Divinski.(2008).Toward the existence of ultrafast diffusion paths in Cu with a gradient microstructure: Room temperature diffusion of Ni.Applied Physics Letters,93(13).
MLA	Z. B. Wang,et al."Toward the existence of ultrafast diffusion paths in Cu with a gradient microstructure: Room temperature diffusion of Ni".Applied Physics Letters 93.13(2008).