Modulating heterogeneity and plasticity in bulk metallic glasses: Role of interfaces on shear banding

doi:10.1016/j.ijplas.2019.03.007

IMR OpenIR

	Modulating heterogeneity and plasticity in bulk metallic glasses: Role of interfaces on shear banding
	Kosiba, K.1; Sopu, D.2,3; Scudino, S.1; Zhang, L.4; Bednarcik, J.5; Pauly, S.1
通讯作者	Pauly, S.(s.pauly@ifw-dresden.de)
	2019-08-01
发表期刊	INTERNATIONAL JOURNAL OF PLASTICITY
ISSN	0749-6419
卷号	119 页码:156-170
摘要	Structural heterogeneities in monolithic metallic glasses, i.e. free volume variations or stress/strain fields, are known to be pivotal for their plasticity but the mechanisms how they affect irreversible deformation remain poorly understood. We show that flash-annealing is a capable tool for modifying the free volume content and its distribution, which creates non-affine stress fields in a monolithic CuZr-based bulk metallic glass. Rather than the overall free volume, mu m-scale regions of relaxed and rejuvenated glass govern plastic deformation. Complementary molecular dynamics simulations underpin the importance of the interfaces between relaxed and rejuvenated volumes for shear band proliferation. Not only can we reach unmatched states of metastability in metallic glasses with the present approach but also better understand the mechanisms underlying plasticity in monolithic but structurally heterogeneous metallic glasses.
资助者	German Science Foundation (DFG) ; Leibniz Program
DOI	10.1016/j.ijplas.2019.03.007
收录类别	SCI
语种	英语
资助项目	German Science Foundation (DFG)[PA 2275/2-1] ; German Science Foundation (DFG)[PA 2275/4-1] ; German Science Foundation (DFG)[KO 5771/1-1] ; German Science Foundation (DFG)[SO 1518/1-1] ; Leibniz Program[EC 111/26-1]
WOS研究方向	Engineering ; Materials Science ; Mechanics
WOS类目	Engineering, Mechanical ; Materials Science, Multidisciplinary ; Mechanics
WOS记录号	WOS:000471088600009
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：90[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/321006/134129
专题	中国科学院金属研究所
通讯作者	Pauly, S.
作者单位	1.IFW Dresden, Inst Complex Mat, Helmholtzstr 20, D-01069 Dresden, Germany 2.Tech Univ Darmstadt, Inst Mat Wissensch, Otto Berndt Str 3, D-64287 Darmstadt, Germany 3.Austrian Acad Sci, Erich Schmid Inst Mat Sci, Jahnstr 12, A-8700 Leoben, Austria 4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 5.DESY Photon Sci, Notkestr 85, D-22607 Hamburg, Germany
推荐引用方式 GB/T 7714	Kosiba, K.,Sopu, D.,Scudino, S.,et al. Modulating heterogeneity and plasticity in bulk metallic glasses: Role of interfaces on shear banding[J]. INTERNATIONAL JOURNAL OF PLASTICITY,2019,119:156-170.
APA	Kosiba, K.,Sopu, D.,Scudino, S.,Zhang, L.,Bednarcik, J.,&Pauly, S..(2019).Modulating heterogeneity and plasticity in bulk metallic glasses: Role of interfaces on shear banding.INTERNATIONAL JOURNAL OF PLASTICITY,119,156-170.
MLA	Kosiba, K.,et al."Modulating heterogeneity and plasticity in bulk metallic glasses: Role of interfaces on shear banding".INTERNATIONAL JOURNAL OF PLASTICITY 119(2019):156-170.