Mechanisms of Serrated Flow and Microstructural Evolution in MarBN Steel

The mechanisms of serrated flow and microstructural evolution in MarBN steel were studied under two strain rates (5 × 10(−3) s(−1) and 5 × 10(−5) s(−1)) at room temperature and high temperatures (430 °C and 630 °C). The experimental results show that the type-C serrations occurred at all temperature...

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Autores principales: Zou, Tongfei, Wang, Quanyi, Pei, Yubing, Mei, Ting, Zhang, Hong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Communication
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10573996/
https://www.ncbi.nlm.nih.gov/pubmed/37834548
http://dx.doi.org/10.3390/ma16196411
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author Zou, Tongfei
Wang, Quanyi
Pei, Yubing
Mei, Ting
Zhang, Hong
author_facet Zou, Tongfei
Wang, Quanyi
Pei, Yubing
Mei, Ting
Zhang, Hong
author_sort Zou, Tongfei
collection PubMed
description The mechanisms of serrated flow and microstructural evolution in MarBN steel were studied under two strain rates (5 × 10(−3) s(−1) and 5 × 10(−5) s(−1)) at room temperature and high temperatures (430 °C and 630 °C). The experimental results show that the type-C serrations occurred at all temperatures under a high strain rate of 5 × 10(−3) s(−1). In contrast, type-B serrations occurred at 430 °C and 630 °C under a low strain rate of 5 × 10(−3) s(−1), indicating that the type of serrated flow was related to the strain rate. The microstructural results reveal that pinning and unpinning dislocation under both strain rates were responsible for the serrations at both strain rates.
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spelling pubmed-105739962023-10-14 Mechanisms of Serrated Flow and Microstructural Evolution in MarBN Steel Zou, Tongfei Wang, Quanyi Pei, Yubing Mei, Ting Zhang, Hong Materials (Basel) Communication The mechanisms of serrated flow and microstructural evolution in MarBN steel were studied under two strain rates (5 × 10(−3) s(−1) and 5 × 10(−5) s(−1)) at room temperature and high temperatures (430 °C and 630 °C). The experimental results show that the type-C serrations occurred at all temperatures under a high strain rate of 5 × 10(−3) s(−1). In contrast, type-B serrations occurred at 430 °C and 630 °C under a low strain rate of 5 × 10(−3) s(−1), indicating that the type of serrated flow was related to the strain rate. The microstructural results reveal that pinning and unpinning dislocation under both strain rates were responsible for the serrations at both strain rates. MDPI 2023-09-26 /pmc/articles/PMC10573996/ /pubmed/37834548 http://dx.doi.org/10.3390/ma16196411 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Communication
Zou, Tongfei
Wang, Quanyi
Pei, Yubing
Mei, Ting
Zhang, Hong
Mechanisms of Serrated Flow and Microstructural Evolution in MarBN Steel
title Mechanisms of Serrated Flow and Microstructural Evolution in MarBN Steel
title_full Mechanisms of Serrated Flow and Microstructural Evolution in MarBN Steel
title_fullStr Mechanisms of Serrated Flow and Microstructural Evolution in MarBN Steel
title_full_unstemmed Mechanisms of Serrated Flow and Microstructural Evolution in MarBN Steel
title_short Mechanisms of Serrated Flow and Microstructural Evolution in MarBN Steel
title_sort mechanisms of serrated flow and microstructural evolution in marbn steel
topic Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10573996/
https://www.ncbi.nlm.nih.gov/pubmed/37834548
http://dx.doi.org/10.3390/ma16196411
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