Please use this identifier to cite or link to this item:
Title: Twin-coupled shear bands in an ultrafine-grained CoCrFeMnNi high-entropy alloy deformed at 77K
Authors: Li, Xiyao
Sun, Shijie
Zou, Yu
Zhu, Qi
Tian, Yanzhong
Wang, Jiangwei
Keywords: Engineering::Mechanical engineering
Issue Date: 2022
Source: Li, X., Sun, S., Zou, Y., Zhu, Q., Tian, Y. & Wang, J. (2022). Twin-coupled shear bands in an ultrafine-grained CoCrFeMnNi high-entropy alloy deformed at 77K. Materials Research Letters, 10(6), 385-391.
Journal: Materials Research Letters
Abstract: Two different types of shear bands generate in ultrafine-grained (UFG) CoCrFeMnNi high-entropy alloys deformed at 77 K, i.e. commonly-observed low angle grain boundary (LAGB) type and unusual twin-coupled type. Twin-coupled shear bands exhibit a misorientation of 56–67° with the matrix, in contrast to the LAGB shear band with a misorientation of 6–12°. Both annealing twins and deformation twins can act as precursor for twin-coupled shear bands, where dislocation accumulation along twin boundaries can tune the orientation of twin lamella. These observations suggest that twin-coupled shear bands can act as an important plastic carrier in materials deformed under extreme conditions.
ISSN: 2166-3831
DOI: 10.1080/21663831.2022.2053220
Schools: School of Mechanical and Aerospace Engineering 
Rights: © 2022 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group This is an Open Access article distributed under the terms of the Creative Commons Attribution License (, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MAE Journal Articles

Files in This Item:
File Description SizeFormat 
21663831.2022a.pdf3.31 MBAdobe PDFThumbnail

Citations 20

Updated on Sep 22, 2023

Web of ScienceTM
Citations 20

Updated on Sep 24, 2023

Page view(s)

Updated on Sep 30, 2023


Updated on Sep 30, 2023

Google ScholarTM




Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.