A. Moshiri, A. Zarei-Hanzaki, A.S. Anousheh, H.R. Abedi, Seok Su Sohn, Junha Yang, M. Jaskari, L.P. Karjalainen, F. Berto, On the fatigue and dwell-fatigue behavior of a low-density steel and the correlated microstructure origin of damage mechanism, Journal of Materials Research and Technology, Volume 15, 2021, Pages 6136-6154, ISSN 2238-7854, https://doi.org/10.1016/j.jmrt.2021.10.135
On the fatigue and dwell-fatigue behavior of a low-density steel and the correlated microstructure origin of damage mechanism
|Author:||Moshiri, A.1; Zarei-Hanzaki, A.1; Anousheh, A. S.1;|
1Hot Deformation and Thermomechanical Processing Laboratory of High Performance Engineering Materials, School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran
2School of Metallurgy & Materials Engineering, Iran University of Science and Technology (IUST), Tehran, Iran
3Department of Material Science and Engineering, Korea University, 145 Anam-Ro, Seongbuk-Gu, Seoul, 02841, Republic of Korea
4Center for High Entropy Alloys, Pohang University of Science and Technology, Pohang, 37673, Republic of Korea
5Kerttu Saalasti Institute, Future Manufacturing Technologies Group, University of Oulu, Pajatie 5, Nivala, FI-85500, Finland
6Centre for Advanced Steels Research, Materials and Mechanical Engineering Unit, University of Oulu, Oulu, Finland
7Department of Mechanical and Industrial Engineering, Norwegian University of Science and Technology, Trondheim, 7491, Norway
|Online Access:||PDF Full Text (PDF, 9.6 MB)|
|Persistent link:|| http://urn.fi/urn:nbn:fi-fe2022021519070
|Publish Date:|| 2022-02-15
The present work deals with revealing the fatigue and dwell-fatigue behavior and correlated damage mechanisms of Fe–Mn–Al–C lightweight steel. Surprisingly, alteration in loading mode from monotonic to cyclic induces reversible dislocation movement and facilitates the occurrence of dynamic strain aging. Additionally, applying dwell time by an acceleration of strain aging intensified stress asymmetry during dwell fatigue. The occurrence of strain aging has a bilateral effect on the crack initiation and growth. On one hand, strain aging stimulates twin formation and retards fatigue crack initiation, however, on the other hand, reduces hardening capacity, restricts the plastic deformation and facilitates crack propagation.
Journal of materials research and technology
|Pages:||6136 - 6154|
|Type of Publication:||
A1 Journal article – refereed
|Field of Science:||
216 Materials engineering
This work was supported by the Korea University Grant for S.S. Sohn, by Korea Institute for Advancement of Technology (KIAT) grant funded by the Korea Government (MOTIE) (P0002019, The Competency Development Program for Industry Specialist). Also, the authors acknowledge the support of the Academy of Finland for the ‘‘Genome of Steel’’ project #311934.
© 2021 Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).