Towards commonality between shear banding and glass-liquid transition in metallic glasses

doi:10.1103/PhysRevMaterials.6.L100602

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	Towards commonality between shear banding and glass-liquid transition in metallic glasses
	Yang ZY(杨增宇)2,3; Dai LH(戴兰宏)1,2,3
刊名	PHYSICAL REVIEW MATERIALS
	2022-10-26
卷号	6 期号:10 页码:6
ISSN号	2475-9953
DOI	10.1103/PhysRevMaterials.6.L100602
通讯作者	Dai, Lan-Hong(lhdai@lnm.imech.ac.cn)
英文摘要	Despite the high attendance of shear banding in metallic glasses and other disordered materials, the nature of the emergence of shear band is still mysterious. Using molecular dynamics simulations, a set of detailed characterizations of shear band in a typical Cu50Zr50 metallic glass is obtained. Then we uncover a large number of robust and intriguing commonalities between the emergence of shear bands and the glass-to-liquid transition, including strong similarities on viscosity drop, enthalpy discontinuity, breakdown of hard backbone network, as well as relaxation process. Such observations indicate that shear banding in metallic glasses is a consequence of deformation-controlled glass transition, as further quantitatively validated via the compelling overlap between the venerable Vogel-Fulcher-Tammann law (and Adam-Gibbs relation) and the evolving glass state of shear band controlled by configurational temperature. These results provide a direct bridge between shear banding and glass-to-liquid transition and are instrumental to build the unified framework of flow behavior induced either by thermal or stressed stimuli in disordered materials.
分类号	二类
资助项目	NSFC[11790292] ; NSFC Basic Science Center Program[11988102] ; Strategic Priority Research Program[XDB22040302] ; Strategic Priority Research Program[XDB22040303] ; Key Research Program of Frontier Sciences[QYZDJSSWJSC011]
WOS关键词	ADAM-GIBBS MODEL ; INHOMOGENEOUS FLOW ; RANGE ORDER ; DEFORMATION ; DYNAMICS ; RELAXATION ; BEHAVIOR
WOS研究方向	Materials Science
语种	英语
WOS记录号	WOS:000878700400002
资助机构	NSFC ; NSFC Basic Science Center Program ; Strategic Priority Research Program ; Key Research Program of Frontier Sciences
其他责任者	Dai, Lan-Hong
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/90738]
专题	力学研究所_非线性力学国家重点实验室
作者单位	1.Univ Chinese Acad Sci, Sch Future Technol, Beijing 100049, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China; 3.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China;
推荐引用方式 GB/T 7714	Yang ZY,Dai LH. Towards commonality between shear banding and glass-liquid transition in metallic glasses[J]. PHYSICAL REVIEW MATERIALS,2022,6(10):6.
APA	杨增宇,&戴兰宏.(2022).Towards commonality between shear banding and glass-liquid transition in metallic glasses.PHYSICAL REVIEW MATERIALS,6(10),6.
MLA	杨增宇,et al."Towards commonality between shear banding and glass-liquid transition in metallic glasses".PHYSICAL REVIEW MATERIALS 6.10(2022):6.