中文版 | English
Title

Synergetic deformation mechanism in hierarchical twinned high-entropy alloys

Author
Corresponding AuthorLi,Jianjun
Publication Years
2022-03-10
DOI
Source Title
ISSN
1005-0302
Volume102Pages:80-88
Abstract
The mechanical properties of crystalline materials can be efficiently optimized using a hierarchical twinned structure. Conventional deformation mechanisms for coherent Σ3 boundaries generally involve three basic models: cross-slip, partial dislocation step, and full dislocation step. In this study, we report a novel deformation mechanism that allows the co-existence of twin-separation, phase transformations, grain rotation, and cracking, around a triple junction of twin boundaries in a hierarchical twinned high-entropy alloy. The deformation mechanisms in the reference high-entropy alloy (Fe-30Mn-10Co-10Cr at.%) were investigated using LAADF-STEM. The triple junction of the hierarchical twinned structure gradually deformed during in-situ strain and showed mechanisms significantly different from that observed in the purely twinned structures. These new mechanisms are referred to as “novel synergetic deformation mechanisms of hierarchical twin boundaries.” Understanding the fundamental mechanisms of the hierarchical twin boundaries under deformation could assist the design of strong and ductile bulk materials with hierarchical twinned structure.
Keywords
URL[Source Record]
Language
English
SUSTech Authorship
First
Scopus EID
2-s2.0-85114867436
Data Source
Scopus
Citation statistics
Document TypeJournal Article
Identifierhttps://kc.sustech.edu.cn/handle/2SGJ60CL/245891
DepartmentDepartment of Mechanical and Energy Engineering
Affiliation
1.Department of Mechanical and Energy Engineering,Southern University of Science and Technology,Shenzhen,518055,China
2.Max-Planck-Institut für Eisenforschung,Düsseldorf,Max-Planck-Straße 1,40237,Germany
3.College of Mechanical and Electrical Engineering,Central South University,Changsha,410083,China
First Author AffilicationDepartment of Mechanical and Energy Engineering
Recommended Citation
GB/T 7714
Lu,Wenjun,Li,Jianjun. Synergetic deformation mechanism in hierarchical twinned high-entropy alloys[J]. Journal of Materials Science and Technology,2022,102:80-88.
APA
Lu,Wenjun,&Li,Jianjun.(2022).Synergetic deformation mechanism in hierarchical twinned high-entropy alloys.Journal of Materials Science and Technology,102,80-88.
MLA
Lu,Wenjun,et al."Synergetic deformation mechanism in hierarchical twinned high-entropy alloys".Journal of Materials Science and Technology 102(2022):80-88.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Export to Excel
Export to Csv
Altmetrics Score
Google Scholar
Similar articles in Google Scholar
[Lu,Wenjun]'s Articles
[Li,Jianjun]'s Articles
Baidu Scholar
Similar articles in Baidu Scholar
[Lu,Wenjun]'s Articles
[Li,Jianjun]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Lu,Wenjun]'s Articles
[Li,Jianjun]'s Articles
Terms of Use
No data!
Social Bookmark/Share
No comment.

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.