Vortex Evolution Behavior in Self-Assembly of Flow Units in Metallic Glasses

doi:10.1007/s10338-023-00409-9

IMECH-IR > 非线性力学国家重点实验室

	Vortex Evolution Behavior in Self-Assembly of Flow Units in Metallic Glasses
	Lian J(廉杰); Song RY(宋如月); Chen Y(陈艳); Dai LH(戴兰宏)
发表期刊	ACTA MECHANICA SOLIDA SINICA
	2023-07-11
ISSN	0894-9166
摘要	Shear banding in amorphous metals originates from the activation and percolation of flow units. To uncover the self-assembly dynamics of flow units in metallic glasses, a rectangular sample with two flow units embedded in the matrix undergoing simple shearing was analyzed using finite element simulations. The vortex evolution behavior, including activation, growth, and collapse during the self-assembly of flow units, was revealed. It was found that the formation of a mature vortex indicates the onset of yielding, and the collapse of the vortex represents the percolation of flow units or shear localization. The effects of initial free volume distribution and the distance between flow units on vortex behavior were also studied. Increasing the initial free volume concentration within flow units or the matrix leads to a gentler vortex evolution process and better homogeneous plasticity. The shape of vortex tends to be flatter with the increase in flow units' spacing, and the optimal spacing was found to maximize the strength of the material.
关键词	Vortex Free volume Self-assembly Flow units Metallic glasses
DOI	10.1007/s10338-023-00409-9
收录类别	SCI ; EI ; CSCD
语种	英语
WOS记录号	WOS:001026345000002
WOS研究方向	Materials Science ; Mechanics
WOS类目	Materials Science, Multidisciplinary ; Mechanics
项目资助者	NSFC [11972346, 11790292] ; NSFC Basic Science Center Program [11988102]
论文分区	Q3
力学所作者排名	1
RpAuthor	Chen, Y (corresponding author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China. ; Chen, Y (corresponding author), Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China.
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/92578
专题	非线性力学国家重点实验室
作者单位	1.{Lian, Jie, Song, Ruyue, Chen, Yan, Dai, Lanhong} Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China 2.{Lian, Jie, Song, Ruyue, Chen, Yan, Dai, Lanhong} Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Lian J,Song RY,Chen Y,et al. Vortex Evolution Behavior in Self-Assembly of Flow Units in Metallic Glasses[J]. ACTA MECHANICA SOLIDA SINICA,2023.Rp_Au:Chen, Y (corresponding author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China., Chen, Y (corresponding author), Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China.
APA	廉杰,宋如月,陈艳,&戴兰宏.(2023).Vortex Evolution Behavior in Self-Assembly of Flow Units in Metallic Glasses.ACTA MECHANICA SOLIDA SINICA.
MLA	廉杰,et al."Vortex Evolution Behavior in Self-Assembly of Flow Units in Metallic Glasses".ACTA MECHANICA SOLIDA SINICA (2023).

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Jp2023A180.pdf（1835KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览下载