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

doi:10.1016/j.ijplas.2019.03.007

CORC > 金属研究所 > 中国科学院金属研究所

	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
刊名	INTERNATIONAL JOURNAL OF PLASTICITY
	2019-08-01
卷号	119 页码:156-170
ISSN号	0749-6419
DOI	10.1016/j.ijplas.2019.03.007
通讯作者	Pauly, S.(s.pauly@ifw-dresden.de)
英文摘要	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
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000471088600009
资助机构	German Science Foundation (DFG) ; Leibniz Program
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/134128]
专题	金属研究所_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.