Development of local plasticity around voids during tensile deformation
File(s)2007.11890.pdf (2.84 MB)
Accepted version
Author(s)
Guo, Yi
Zong, Cui
Britton, TB
Type
Journal Article
Abstract
Voids can limit the life of engineering components. This motivates us to understand local plasticity around voids in a nickel base superalloy combining experiments and simulations. Single crystal samples were deformed in tension with in-situ high angular resolution electron back scatter diffraction to probe the heterogeneous local stress field under load; the reference stress is informed by crystal plasticity finite element simulations. This information is used to understand the activation of plastic deformation around the void. Our investigation indicates that while the resolved shear stress would indicate slip activity on multiple slip systems, slip is reduced to specific systems due to image forces and forest hardening. This study rationalizes the observed development of plastic deformation around the void, aiding in our understanding of component failure and engineering design.
Date Issued
2021-05
Date Acceptance
2021-03-30
Citation
Materials Science and Engineering: A, 2021, 814, pp.1-13
ISSN
0921-5093
Publisher
Elsevier BV
Start Page
1
End Page
13
Journal / Book Title
Materials Science and Engineering: A
Volume
814
Copyright Statement
© 2021 Elsevier Ltd. All rights reserved. This manuscript is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence http://creativecommons.org/licenses/by-nc-nd/4.0/
Identifier
https://www.sciencedirect.com/science/article/pii/S0921509321004962?via%3Dihub
Subjects
cond-mat.mtrl-sci
cond-mat.mtrl-sci
0910 Manufacturing Engineering
0912 Materials Engineering
0913 Mechanical Engineering
Materials
Publication Status
Published
Article Number
141227
Date Publish Online
2021-04-15