中文版 | English
Title

High strain gradient induced nanograin in a CoCrNiVC medium entropy alloy with lamellar carbide

Author
Corresponding AuthorHe,B. B.; Huang,M. X.
Publication Years
2022-09-05
DOI
Source Title
ISSN
0921-5093
EISSN
1873-4936
Volume852
Abstract
The present work investigates the interaction of the matrix and lamellar CrC carbide in a CoCrNiVC medium entropy alloy (MEA) during the plastic deformation. The homogenized sample was annealed to facilitate the precipitation of the carbide. The lamellar carbide only precipitated near the incoherent twin boundaries. Nanoindentation technique was used to introduce the plastic deformation in a local region near the incoherent twin boundaries. Interestingly, a new nano-grain was formed in the region containing carbide during the test. The lamellar carbide confined the propagation of the plastic strain, leading to a high strain gradient at the region between two lamellar carbides, which is substantiated by finite element simulation. Such a high strain gradient is responsible for the formation of nano-grain boundary in the present MEA with the lamellar carbide during nanoindentation.
Keywords
URL[Source Record]
Indexed By
EI ; SCI
Language
English
SUSTech Authorship
First ; Corresponding
Funding Project
National Key Research and Development Program of China[2019YFA0209900];National Natural Science Foundation of China[52130102];National Natural Science Foundation of China[U52071173];
WOS Research Area
Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS Subject
Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS Accession No
WOS:000932073800002
Publisher
EI Accession Number
20223212545026
EI Keywords
Carbides ; Chromium alloys ; Cobalt alloys ; Grain boundaries ; High-entropy alloys ; Nanoindentation ; Plastic deformation
ESI Classification Code
Metallurgy and Metallography:531 ; Chromium and Alloys:543.1 ; Iron Alloys:545.2 ; Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals:549.3 ; Thermodynamics:641.1 ; Nanotechnology:761 ; Inorganic Compounds:804.2 ; Ceramics:812.1 ; Mechanical Variables Measurements:943.2
ESI Research Field
MATERIALS SCIENCE
Scopus EID
2-s2.0-85135410724
Data Source
Scopus
Citation statistics
Cited Times [WOS]:1
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/375621
DepartmentDepartment of Mechanical and Energy Engineering
Affiliation
1.Department of Mechanical and Energy Engineering,Southern University of Science and Technology,Shenzhen,518055,China
2.Department of Mechanical Engineering,The University of Hong Kong,Hong Kong,China
First Author AffilicationDepartment of Mechanical and Energy Engineering
Corresponding Author AffilicationDepartment of Mechanical and Energy Engineering
First Author's First AffilicationDepartment of Mechanical and Energy Engineering
Recommended Citation
GB/T 7714
Pan,S.,Zhang,J. Q.,He,B. B.,et al. High strain gradient induced nanograin in a CoCrNiVC medium entropy alloy with lamellar carbide[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2022,852.
APA
Pan,S.,Zhang,J. Q.,He,B. B.,&Huang,M. X..(2022).High strain gradient induced nanograin in a CoCrNiVC medium entropy alloy with lamellar carbide.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,852.
MLA
Pan,S.,et al."High strain gradient induced nanograin in a CoCrNiVC medium entropy alloy with lamellar carbide".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 852(2022).
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