Size effects on deformation and fatigue behavior of a micron-sized stainless steel

IMR OpenIR

	Size effects on deformation and fatigue behavior of a micron-sized stainless steel
	Zhang, GP ; Takashima, K ; Higo, Y
通讯作者	Zhang, GP(gpzhang@imr.ac.cn)
	2005-04-11
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	41 期号:4 页码:337-341
摘要	Micron-sized cantilever beams of a 304 stainless steel were fabricated by focused-ion-beam (FIB). The static bending and dynamic bending tests of the microbeams were carried out. The results show that with decreasing the beam thickness, the yield strength of the microbeam increases and the ductility decreases. The relation between the yield strength of the microbeam and beam thickness is similar to the Hall-Petch relation of the grain size strengthening. The increase in the yield strength of the thinner microbeam is attributed to the increase in the strain gradient contribution due to inhomogeneous deformation of the small dimensional material. The decrease in the ductility of the microbeam is attributed to fewer mobile dislocations in the grain. The threshold of the fatigue crack initiation from the notch of the microbeam is close to that of the bulk material.
关键词	micrometer-scale deformation fatigue 304 stainless steel size effect
收录类别	SCI
语种	英语
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000228756900001
出版者	SCIENCE CHINA PRESS
引用统计	被引频次：6[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/321006/83159
专题	中国科学院金属研究所
通讯作者	Zhang, GP
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Tokyo Inst Technol, Precis & Intelligence Lab, Yokohama, Kanagawa 2268503, Japan
推荐引用方式 GB/T 7714	Zhang, GP,Takashima, K,Higo, Y. Size effects on deformation and fatigue behavior of a micron-sized stainless steel[J]. ACTA METALLURGICA SINICA,2005,41(4):337-341.
APA	Zhang, GP,Takashima, K,&Higo, Y.(2005).Size effects on deformation and fatigue behavior of a micron-sized stainless steel.ACTA METALLURGICA SINICA,41(4),337-341.
MLA	Zhang, GP,et al."Size effects on deformation and fatigue behavior of a micron-sized stainless steel".ACTA METALLURGICA SINICA 41.4(2005):337-341.