Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/171687
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
Authors: Xie, Guilan
Kuang, Zhihao
Li, Jingxin
Zhang, Yating
Han, Shilei
Li, Chengbo
Zhu, Daibo
Liu, Yang
Keywords: Engineering::Materials
Issue Date: 2023
Source: 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
Journal: Materials 
Abstract: 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.
URI: https://hdl.handle.net/10356/171687
ISSN: 1996-1944
DOI: 10.3390/ma16124431
Schools: School of Materials Science and Engineering 
Rights: © 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/).
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MSE Journal Articles

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