Title | Enhanced strain hardening induced by twin boundary-dislocation interaction in micro-pillar compression of CoCrNi medium-entropy alloy |
Author | |
Corresponding Author | He,B. B. |
Publication Years | 2022-08-01
|
DOI | |
Source Title | |
ISSN | 2589-1529
|
Volume | 24 |
Abstract | In this contribution, we compare the mechanical behaviors of single crystal micro-pillars of CoCrNi medium -entropy alloy with and without deformation twins during compression test. It is found that the micro-pillar with deformation twins maintains higher increment of flow stress as compared to the one without deformation twins. The enhanced strain hardening behavior is ascribed to the substantially increased dislocation density resulted from the intensive twin boundary-dislocation interaction. The present study evidences the critical role of deformation twinning in the improved work hardening behavior of twinning-related deformation mechanism of alloys with low stacking fault energy such as CoCrNi. |
Keywords | |
URL | [Source Record] |
Indexed By | |
Language | English
|
SUSTech Authorship | First
; Corresponding
|
Funding Project | Natural Science Foundation of China[U52071173]
; Science and Technology Innova-tion Commission of Shenzhen["JCYJ20210324120209026","ZDSYS20200810171201007","KQTD2019092917250571"]
; Guang-dong Basic and Applied Basic Research Foundation[2021A1515110480]
|
WOS Research Area | Materials Science
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WOS Subject | Materials Science, Multidisciplinary
|
WOS Accession No | WOS:000827348400011
|
Publisher | |
EI Accession Number | 20222612294806
|
EI Keywords | Cobalt alloys
; Compression testing
; Deformation
; Entropy
; High-entropy alloys
; Single crystals
; Strain hardening
; Twinning
|
ESI Classification Code | Metallurgy and Metallography:531
; Heat Treatment Processes:537.1
; Chromium and Alloys:543.1
; Iron Alloys:545.2
; Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals:549.3
; Thermodynamics:641.1
; Crystalline Solids:933.1
; Crystal Growth:933.1.2
|
Scopus EID | 2-s2.0-85132917619
|
Data Source | Web of Science
|
Citation statistics |
Cited Times [WOS]:0
|
Document Type | Journal Article |
Identifier | http://kc.sustech.edu.cn/handle/2SGJ60CL/352479 |
Department | Department of Mechanical and Energy Engineering |
Affiliation | 1.Shenzhen Key Laboratory of Cross-Scale Manufacturing Mechanics,Southern University of Science and Technology,Shenzhen,518055,China 2.Department of Mechanical and Energy Engineering,SUSTech: Southern University of Science and Technology,Shenzhen,1088 Xueyuan Ave, Nanshan,518055,China |
First Author Affilication | Southern University of Science and Technology; Department of Mechanical and Energy Engineering |
Corresponding Author Affilication | Southern University of Science and Technology; Department of Mechanical and Energy Engineering |
First Author's First Affilication | Southern University of Science and Technology |
Recommended Citation GB/T 7714 |
Shang,X. K.,Guan,Q. W.,He,B. B.. Enhanced strain hardening induced by twin boundary-dislocation interaction in micro-pillar compression of CoCrNi medium-entropy alloy[J]. Materialia,2022,24.
|
APA |
Shang,X. K.,Guan,Q. W.,&He,B. B..(2022).Enhanced strain hardening induced by twin boundary-dislocation interaction in micro-pillar compression of CoCrNi medium-entropy alloy.Materialia,24.
|
MLA |
Shang,X. K.,et al."Enhanced strain hardening induced by twin boundary-dislocation interaction in micro-pillar compression of CoCrNi medium-entropy alloy".Materialia 24(2022).
|
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