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The Microstructural Evolution of Cu-Sn-P Alloy during Hot Deformation Process

The microstructure evolution of Cu-Sn-P alloy subjected to hot deformation was researched through electron backscatter diffraction (EBSD) and transmission electron microscope (TEM) in the present study. The results indicated that after hot deformation, grains perpendicular to the force direction wer...

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Autores principales: Zhao, Junsheng, Zhang, Limin, Du, Fengming, Yuan, Xia, Wang, Pengfei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9267601/
https://www.ncbi.nlm.nih.gov/pubmed/35806628
http://dx.doi.org/10.3390/ma15134501
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author Zhao, Junsheng
Zhang, Limin
Du, Fengming
Yuan, Xia
Wang, Pengfei
author_facet Zhao, Junsheng
Zhang, Limin
Du, Fengming
Yuan, Xia
Wang, Pengfei
author_sort Zhao, Junsheng
collection PubMed
description The microstructure evolution of Cu-Sn-P alloy subjected to hot deformation was researched through electron backscatter diffraction (EBSD) and transmission electron microscope (TEM) in the present study. The results indicated that after hot deformation, grains perpendicular to the force direction were elongated, and mostly became deformed grains, and then exhibited an obvious hardening effect. The Cu-Sn-P alloy could be strain hardened during hot deformation, but, with recrystallization, a softening effect occurred. Changes in dislocation density, textures, and grain sizes play different roles in flow stress behaviors of Cu-Sn-P alloy, and the dislocation density has a more evident effect at low temperature. However, with increase in temperature, recrystallization softening gradually dominates. Low-angle grain boundaries (LABs) account for the majority of hot deformed microstructures of Cu-Sn-P alloy. High dislocation densities in these zones make it easy to initiate the dislocation slipping systems. Deformation is realized through dislocation slipping and the slipping of edge dislocation pairs. The dislocation pile-up zones have high distortion energies, and, thus, elements of diffusion and recrystallization nucleation can occur easily. At different temperatures, the maximum polar density of textures gradually increases, and there are preferred orientations of grains. At 500 °C, stacking faults accumulate and promote the growth of twins. The twin growth direction is mainly determined by the migration of high-angle grain boundaries (HABs) and the clustering of high-stress zones.
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spelling pubmed-92676012022-07-09 The Microstructural Evolution of Cu-Sn-P Alloy during Hot Deformation Process Zhao, Junsheng Zhang, Limin Du, Fengming Yuan, Xia Wang, Pengfei Materials (Basel) Article The microstructure evolution of Cu-Sn-P alloy subjected to hot deformation was researched through electron backscatter diffraction (EBSD) and transmission electron microscope (TEM) in the present study. The results indicated that after hot deformation, grains perpendicular to the force direction were elongated, and mostly became deformed grains, and then exhibited an obvious hardening effect. The Cu-Sn-P alloy could be strain hardened during hot deformation, but, with recrystallization, a softening effect occurred. Changes in dislocation density, textures, and grain sizes play different roles in flow stress behaviors of Cu-Sn-P alloy, and the dislocation density has a more evident effect at low temperature. However, with increase in temperature, recrystallization softening gradually dominates. Low-angle grain boundaries (LABs) account for the majority of hot deformed microstructures of Cu-Sn-P alloy. High dislocation densities in these zones make it easy to initiate the dislocation slipping systems. Deformation is realized through dislocation slipping and the slipping of edge dislocation pairs. The dislocation pile-up zones have high distortion energies, and, thus, elements of diffusion and recrystallization nucleation can occur easily. At different temperatures, the maximum polar density of textures gradually increases, and there are preferred orientations of grains. At 500 °C, stacking faults accumulate and promote the growth of twins. The twin growth direction is mainly determined by the migration of high-angle grain boundaries (HABs) and the clustering of high-stress zones. MDPI 2022-06-26 /pmc/articles/PMC9267601/ /pubmed/35806628 http://dx.doi.org/10.3390/ma15134501 Text en © 2022 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 Article
Zhao, Junsheng
Zhang, Limin
Du, Fengming
Yuan, Xia
Wang, Pengfei
The Microstructural Evolution of Cu-Sn-P Alloy during Hot Deformation Process
title The Microstructural Evolution of Cu-Sn-P Alloy during Hot Deformation Process
title_full The Microstructural Evolution of Cu-Sn-P Alloy during Hot Deformation Process
title_fullStr The Microstructural Evolution of Cu-Sn-P Alloy during Hot Deformation Process
title_full_unstemmed The Microstructural Evolution of Cu-Sn-P Alloy during Hot Deformation Process
title_short The Microstructural Evolution of Cu-Sn-P Alloy during Hot Deformation Process
title_sort microstructural evolution of cu-sn-p alloy during hot deformation process
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9267601/
https://www.ncbi.nlm.nih.gov/pubmed/35806628
http://dx.doi.org/10.3390/ma15134501
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