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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2023-06-01
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| Online Access: | https://www.mdpi.com/1996-1944/16/12/4431 |
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| author | Guilan Xie Zhihao Kuang Jingxin Li Yating Zhang Shilei Han Chengbo Li Daibo Zhu Yang Liu |
| author_facet | Guilan Xie Zhihao Kuang Jingxin Li Yating Zhang Shilei Han Chengbo Li Daibo Zhu Yang Liu |
| author_sort | Guilan Xie |
| collection | DOAJ |
| description | 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<sup>−1</sup>). 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<sup>−1</sup>), the interaction of dislocations is the primary mechanism for the softening Zn-2.0Cu-0.15Ti alloys. At a strain rate of 1 s<sup>−1</sup>, 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<sup>−1</sup>, while twinning dynamic recrystallization (TDRX) and CDRX are observed when the strain rate is 10 s<sup>−1</sup>. |
| first_indexed | 2024-03-11T02:12:48Z |
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| id | doaj.art-c716f02c061148379f3ffa0bff531df9 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-11T02:12:48Z |
| publishDate | 2023-06-01 |
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| series | Materials |
| spelling | doaj.art-c716f02c061148379f3ffa0bff531df92023-11-18T11:26:11ZengMDPI AGMaterials1996-19442023-06-011612443110.3390/ma16124431Thermal Deformation Behavior and Dynamic Softening Mechanisms of Zn-2.0Cu-0.15Ti Alloy: An Investigation of Hot Processing Conditions and Flow Stress BehaviorGuilan Xie0Zhihao Kuang1Jingxin Li2Yating Zhang3Shilei Han4Chengbo Li5Daibo Zhu6Yang Liu7School of Mechanical Engineering and Mechanics, Xiangtan University, Xiangtan 411105, ChinaSchool of Mechanical Engineering and Mechanics, Xiangtan University, Xiangtan 411105, ChinaSchool of Mechanical Engineering and Mechanics, Xiangtan University, Xiangtan 411105, ChinaSchool of Mechanical Engineering and Mechanics, Xiangtan University, Xiangtan 411105, ChinaSchool of Mechanical Engineering and Mechanics, Xiangtan University, Xiangtan 411105, ChinaSchool of Mechanical Engineering and Mechanics, Xiangtan University, Xiangtan 411105, ChinaSchool of Mechanical Engineering and Mechanics, Xiangtan University, Xiangtan 411105, ChinaSchool of Mechanical Engineering and Mechanics, Xiangtan University, Xiangtan 411105, ChinaThrough 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<sup>−1</sup>). 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<sup>−1</sup>), the interaction of dislocations is the primary mechanism for the softening Zn-2.0Cu-0.15Ti alloys. At a strain rate of 1 s<sup>−1</sup>, 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<sup>−1</sup>, while twinning dynamic recrystallization (TDRX) and CDRX are observed when the strain rate is 10 s<sup>−1</sup>.https://www.mdpi.com/1996-1944/16/12/4431Zn-Cu-Ti alloyhot compressiondynamic material model (DMM)flow stress behaviorsoftening mechanism |
| spellingShingle | Guilan Xie Zhihao Kuang Jingxin Li Yating Zhang Shilei Han Chengbo Li Daibo Zhu Yang Liu 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 Zn-Cu-Ti alloy hot compression dynamic material model (DMM) flow stress behavior softening mechanism |
| 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_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_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_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 |
| topic | Zn-Cu-Ti alloy hot compression dynamic material model (DMM) flow stress behavior softening mechanism |
| url | https://www.mdpi.com/1996-1944/16/12/4431 |
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