Propagation of shear bands in a Cu47.5Zr47.5Al5 bulk metallic glass

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	Propagation of shear bands in a Cu47.5Zr47.5Al5 bulk metallic glass
	K. B. Kim; J. Das; M. H. Lee; S. Yi; E. Fleury; Z. F. Zhang; W. H. Wang; J. Eckert
	2008
发表期刊	Journal of Materials Research
ISSN	0884-2914
卷号	23 期号:1 页码:41072
摘要	We report a novel finding of slither propagation of shear bands on the fracture surface of a Cu47.5Zr47.5Al5 bulk metallic glass (BMG). The nanoscale heterogeneities in the as-cast state are aggregated along shear bands with irregular morphology. Such heterogeneities create a fluctuating stress field during shear band propagation leading to a slither propagation mode. The slither propagation of 10 to 15 nm wide shear bands is effective to improve both the plasticity and the "work-hardening-like" behavior of BMGs if the size, the morphology, and the elastic properties of the heterogeneities are intimately intercalated during solidification.
部门归属	[kim, k. b.] sejong univ, fac nanotechnol & adv mat engn, seoul 143747, south korea. [das, j.; lee, m. h.; eckert, j.] leibniz inst solid state & mat res ifm dresden, inst complex mat, d-01171 dresden, germany. [yi, s.] kyungpook natl univ, dept mat sci & met, taegu 702701, south korea. [fleury, e.] korea adv inst sci & technol, adv met res ctr, seoul 130650, south korea. [zhang, z. f.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [wang, w. h.] chinese acad sci, inst phys, beijing 100080, peoples r china.;kim, kb (reprint author), sejong univ, fac nanotechnol & adv mat engn, seoul 143747, south korea;kbkim@sejong.ac.kr
关键词	Mechanical-properties Alloys Deformation Microstructure Plasticity Flows
URL	查看原文
WOS记录号	WOS:000252291200002
引用统计	被引频次：27[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/321006/32853
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	K. B. Kim,J. Das,M. H. Lee,et al. Propagation of shear bands in a Cu47.5Zr47.5Al5 bulk metallic glass[J]. Journal of Materials Research,2008,23(1):41072.
APA	K. B. Kim.,J. Das.,M. H. Lee.,S. Yi.,E. Fleury.,...&J. Eckert.(2008).Propagation of shear bands in a Cu47.5Zr47.5Al5 bulk metallic glass.Journal of Materials Research,23(1),41072.
MLA	K. B. Kim,et al."Propagation of shear bands in a Cu47.5Zr47.5Al5 bulk metallic glass".Journal of Materials Research 23.1(2008):41072.