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Hot Deformation Behavior of Cu–Sn–La Polycrystalline Alloy Prepared by Upcasting
In this study, the hot deformation of a Cu–0.55Sn–0.08La (wt.%) alloy was studied using a Gleeble-3180 testing machine at deformation temperatures of 400–700 °C and various strain rates. The stress–strain curve showed that the hot deformation behavior of the Cu–0.55Sn–0.08La (wt.%) alloy was signifi...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7503898/ https://www.ncbi.nlm.nih.gov/pubmed/32847082 http://dx.doi.org/10.3390/ma13173739 |
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author | Hua, Siming Zhang, Pingze Liu, Zili Yang, Lin |
author_facet | Hua, Siming Zhang, Pingze Liu, Zili Yang, Lin |
author_sort | Hua, Siming |
collection | PubMed |
description | In this study, the hot deformation of a Cu–0.55Sn–0.08La (wt.%) alloy was studied using a Gleeble-3180 testing machine at deformation temperatures of 400–700 °C and various strain rates. The stress–strain curve showed that the hot deformation behavior of the Cu–0.55Sn–0.08La (wt.%) alloy was significantly affected by work hardening, dynamic recovery, and dynamic recrystallization. The activation energy Q was 261.649 kJ·mol(−1) and hot compression constitutive equation was determined as [Formula: see text] The microstructural evolution of the alloy during deformation at 400 °C revealed the presence of both slip and shear bands in the grains. At 700 °C, dynamic recrystallization grains were observed, but recrystallization was incomplete. In summary, these results provide the theoretical basis for the continuous extrusion process of alloys with promising application prospects in the future. |
format | Online Article Text |
id | pubmed-7503898 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-75038982020-09-27 Hot Deformation Behavior of Cu–Sn–La Polycrystalline Alloy Prepared by Upcasting Hua, Siming Zhang, Pingze Liu, Zili Yang, Lin Materials (Basel) Article In this study, the hot deformation of a Cu–0.55Sn–0.08La (wt.%) alloy was studied using a Gleeble-3180 testing machine at deformation temperatures of 400–700 °C and various strain rates. The stress–strain curve showed that the hot deformation behavior of the Cu–0.55Sn–0.08La (wt.%) alloy was significantly affected by work hardening, dynamic recovery, and dynamic recrystallization. The activation energy Q was 261.649 kJ·mol(−1) and hot compression constitutive equation was determined as [Formula: see text] The microstructural evolution of the alloy during deformation at 400 °C revealed the presence of both slip and shear bands in the grains. At 700 °C, dynamic recrystallization grains were observed, but recrystallization was incomplete. In summary, these results provide the theoretical basis for the continuous extrusion process of alloys with promising application prospects in the future. MDPI 2020-08-24 /pmc/articles/PMC7503898/ /pubmed/32847082 http://dx.doi.org/10.3390/ma13173739 Text en © 2020 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Hua, Siming Zhang, Pingze Liu, Zili Yang, Lin Hot Deformation Behavior of Cu–Sn–La Polycrystalline Alloy Prepared by Upcasting |
title | Hot Deformation Behavior of Cu–Sn–La Polycrystalline Alloy Prepared by Upcasting |
title_full | Hot Deformation Behavior of Cu–Sn–La Polycrystalline Alloy Prepared by Upcasting |
title_fullStr | Hot Deformation Behavior of Cu–Sn–La Polycrystalline Alloy Prepared by Upcasting |
title_full_unstemmed | Hot Deformation Behavior of Cu–Sn–La Polycrystalline Alloy Prepared by Upcasting |
title_short | Hot Deformation Behavior of Cu–Sn–La Polycrystalline Alloy Prepared by Upcasting |
title_sort | hot deformation behavior of cu–sn–la polycrystalline alloy prepared by upcasting |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7503898/ https://www.ncbi.nlm.nih.gov/pubmed/32847082 http://dx.doi.org/10.3390/ma13173739 |
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