Thermal deformation behavior and dynamic softening mechanisms of Zn-2.0Cu-0.15Ti alloy: an investigation of hot processing conditions and flow stress behavior
Through isothermal hot compression experiments at various strain rates and temperatures, the thermal deformation behavior of Zn-2.0Cu-0.15Ti alloy is investigated. The Arrhenius-type model is utilized to forecast flow stress behavior. Results show that the Arrhenius-type model accurately reflects th...
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sg-ntu-dr.10356-1716872023-11-10T15:46:26Z Thermal deformation behavior and dynamic softening mechanisms of Zn-2.0Cu-0.15Ti alloy: an investigation of hot processing conditions and flow stress behavior Xie, Guilan Kuang, Zhihao Li, Jingxin Zhang, Yating Han, Shilei Li, Chengbo Zhu, Daibo Liu, Yang School of Materials Science and Engineering Engineering::Materials Hot Compression Dynamic Material Model Through isothermal hot compression experiments at various strain rates and temperatures, the thermal deformation behavior of Zn-2.0Cu-0.15Ti alloy is investigated. The Arrhenius-type model is utilized to forecast flow stress behavior. Results show that the Arrhenius-type model accurately reflects the flow behavior in the entire processing region. The dynamic material model (DMM) reveals that the optimal processing region for the hot processing of Zn-2.0Cu-0.15Ti alloy has a maximum efficiency of about 35%, in the temperatures range (493-543 K) and a strain rate range (0.01-0.1 s-1). Microstructure analysis demonstrates that the primary dynamic softening mechanism of Zn-2.0Cu-0.15Ti alloy after hot compression is significantly influenced by temperature and strain rate. At low temperature (423 K) and low strain rate (0.1 s-1), the interaction of dislocations is the primary mechanism for the softening Zn-2.0Cu-0.15Ti alloys. At a strain rate of 1 s-1, the primary mechanism changes to continuous dynamic recrystallization (CDRX). Discontinuous dynamic recrystallization (DDRX) occurs when Zn-2.0Cu-0.15Ti alloy is deformed under the conditions of 523 K/0.1 s-1, while twinning dynamic recrystallization (TDRX) and CDRX are observed when the strain rate is 10 s-1. Published version This work was supported by the Natural Science Foundation of Hunan Province, China (Grant Nos. 2021JJ30673 and 2022JJ30570), the Research Foundation of Zhuzhou Smelter Group Co (grant number ZYKJ202309), and the Project of the Education Department of Hunan Province (Grant No. 20B569). 2023-11-06T01:04:05Z 2023-11-06T01:04:05Z 2023 Journal Article Xie, G., Kuang, Z., Li, J., Zhang, Y., Han, S., Li, C., Zhu, D. & Liu, Y. (2023). Thermal deformation behavior and dynamic softening mechanisms of Zn-2.0Cu-0.15Ti alloy: an investigation of hot processing conditions and flow stress behavior. Materials, 16(12), 4431-. https://dx.doi.org/10.3390/ma16124431 1996-1944 https://hdl.handle.net/10356/171687 10.3390/ma16124431 37374614 2-s2.0-85163853914 12 16 4431 en Materials © 2023 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 (https:// creativecommons.org/licenses/by/ 4.0/). application/pdf |
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Engineering::Materials Hot Compression Dynamic Material Model Xie, Guilan Kuang, Zhihao Li, Jingxin Zhang, Yating Han, Shilei Li, Chengbo Zhu, Daibo Liu, Yang Thermal deformation behavior and dynamic softening mechanisms of Zn-2.0Cu-0.15Ti alloy: an investigation of hot processing conditions and flow stress behavior |
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Through isothermal hot compression experiments at various strain rates and temperatures, the thermal deformation behavior of Zn-2.0Cu-0.15Ti alloy is investigated. The Arrhenius-type model is utilized to forecast flow stress behavior. Results show that the Arrhenius-type model accurately reflects the flow behavior in the entire processing region. The dynamic material model (DMM) reveals that the optimal processing region for the hot processing of Zn-2.0Cu-0.15Ti alloy has a maximum efficiency of about 35%, in the temperatures range (493-543 K) and a strain rate range (0.01-0.1 s-1). Microstructure analysis demonstrates that the primary dynamic softening mechanism of Zn-2.0Cu-0.15Ti alloy after hot compression is significantly influenced by temperature and strain rate. At low temperature (423 K) and low strain rate (0.1 s-1), the interaction of dislocations is the primary mechanism for the softening Zn-2.0Cu-0.15Ti alloys. At a strain rate of 1 s-1, the primary mechanism changes to continuous dynamic recrystallization (CDRX). Discontinuous dynamic recrystallization (DDRX) occurs when Zn-2.0Cu-0.15Ti alloy is deformed under the conditions of 523 K/0.1 s-1, while twinning dynamic recrystallization (TDRX) and CDRX are observed when the strain rate is 10 s-1. |
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School of Materials Science and Engineering |
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School of Materials Science and Engineering Xie, Guilan Kuang, Zhihao Li, Jingxin Zhang, Yating Han, Shilei Li, Chengbo Zhu, Daibo Liu, Yang |
format |
Article |
author |
Xie, Guilan Kuang, Zhihao Li, Jingxin Zhang, Yating Han, Shilei Li, Chengbo Zhu, Daibo Liu, Yang |
author_sort |
Xie, Guilan |
title |
Thermal deformation behavior and dynamic softening mechanisms of Zn-2.0Cu-0.15Ti alloy: an investigation of hot processing conditions and flow stress behavior |
title_short |
Thermal deformation behavior and dynamic softening mechanisms of Zn-2.0Cu-0.15Ti alloy: an investigation of hot processing conditions and flow stress behavior |
title_full |
Thermal deformation behavior and dynamic softening mechanisms of Zn-2.0Cu-0.15Ti alloy: an investigation of hot processing conditions and flow stress behavior |
title_fullStr |
Thermal deformation behavior and dynamic softening mechanisms of Zn-2.0Cu-0.15Ti alloy: an investigation of hot processing conditions and flow stress behavior |
title_full_unstemmed |
Thermal deformation behavior and dynamic softening mechanisms of Zn-2.0Cu-0.15Ti alloy: an investigation of hot processing conditions and flow stress behavior |
title_sort |
thermal deformation behavior and dynamic softening mechanisms of zn-2.0cu-0.15ti alloy: an investigation of hot processing conditions and flow stress behavior |
publishDate |
2023 |
url |
https://hdl.handle.net/10356/171687 |
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1783955636172619776 |