Effect of sample size on ductility of metallic glass

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	Effect of sample size on ductility of metallic glass
	F. F. Wu; Z. F. Zhang; S. X. Mao; J. Eckert
	2009
发表期刊	Philosophical Magazine Letters
ISSN	0950-0839
卷号	89 期号:3 页码:178-184
摘要	With decreasing sample dimension, the compressive plastic strain of a Zr-based metallic glass increases from near zero to as high as 80% without failure. This indicates that macroscopically brittle or ductile deformation behaviour can occur in chemically and structurally identical metallic glass. A concept of critical shear offset is proposed to explain the strong size effect on the enhanced plasticity of metallic glass by taking the shear fracture energy density into account. This finding provides new understanding on the principle that for metallic glass 'smaller is more ductile', even on the macroscopic scale.
部门归属	[wu, f. f.; zhang, z. f.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [wu, f. f.] liaoning univ technol, sch mat & chem engn, jinzhou 121001, peoples r china. [mao, s. x.] univ pittsburgh, dept mech engn & mat sci, pittsburgh, pa 15261 usa. [eckert, j.] ifw dresden, inst complex mat, d-01171 dresden, germany. [eckert, j.] tech univ dresden, inst mat sci, d-01062 dresden, germany.;wu, ff (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china;ffwoo@foxmail.com zhfzhang@imr.ac.cn
关键词	Metallic Glass Sample Size Ductility Deformation Forming Ability Shear Bands Bulk Plasticity Deformation Temperature Strength Fracture
URL	查看原文
WOS记录号	WOS:000263932600004
引用统计	被引频次：55[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/321006/32422
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	F. F. Wu,Z. F. Zhang,S. X. Mao,et al. Effect of sample size on ductility of metallic glass[J]. Philosophical Magazine Letters,2009,89(3):178-184.
APA	F. F. Wu,Z. F. Zhang,S. X. Mao,&J. Eckert.(2009).Effect of sample size on ductility of metallic glass.Philosophical Magazine Letters,89(3),178-184.
MLA	F. F. Wu,et al."Effect of sample size on ductility of metallic glass".Philosophical Magazine Letters 89.3(2009):178-184.