Journal article
Influence of strain rate and crystallographic orientation on dynamic recrystallization of pure Zn during room-temperature compression
Journal of Materials Science & Technology, Vol.86, pp.237-250
2021
Abstract
This work investigates the strain rate dependence of dynamic recrystallization behaviour of high-purity zinc in room temperature compression under strain rates of 10-4 s-1, 10-2 s-1 and 0.5 s-1. Results from electron backscatter diffraction provide insight into the deformation and dynamic recrystallization mechanisms operative. Continuous dynamic recrystallization, twin-induced dynamic recrystallization, and discontinuous dynamic recrystallization are all active under compressive deformation at room temperature. Due to the high stacking fault energy of Zn, continuous dynamic recrystallization is the dominant mechanism while discontinuous dynamic recrystallization only operates in the early stages of compression at 10-4 s-1. Dynamic recrystallization kinetics are enhanced at higher strain rates (10-2 s-1 and 0.5 s-1) due to an increased contribution from twin-induced dynamic recrystallization. The present study reveals that the controlling mechanisms for continuous dynamic recrystallization are basal < a > slip and 2nd order pyramidal < c + a > slip activity. Because the activation of slip systems is mainly determined by crystallographic orientation, continuous dynamic recrystallization behaviour varies with grain orientation according to their propensity for basal and 2nd order pyramidal slip.
Details
- Title
- Influence of strain rate and crystallographic orientation on dynamic recrystallization of pure Zn during room-temperature compression
- Authors
- Shiyang Liu (Author) - University of QueenslandDamon Kent (Author) - University of the Sunshine Coast, Queensland, School of Science, Technology and EngineeringHongyi Zhan (Author) - General Motors Global Research & Development (China)Nghiem Doan (Author) - University of QueenslandChang Wang (Author) - Northwest Institute For Non-Ferrous Metal ResearchSen Yu (Author) - Northwest Institute For Non-Ferrous Metal ResearchMatthew Dargusch (Author) - University of QueenslandGui Wang (Author) - University of Queensland
- Publication details
- Journal of Materials Science & Technology, Vol.86, pp.237-250
- Publisher
- Zhongguo Kexueyuan Jinshu Yanjiusuo,Chinese Academy of Sciences, Institute of Metal Research
- DOI
- 10.1016/j.jmst.2020.12.077
- ISSN
- 1941-1162
- Organisation Unit
- School of Science, Technology and Engineering; University of the Sunshine Coast, Queensland
- Language
- English
- Record Identifier
- 99514107802621
- Output Type
- Journal article
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- Collaboration types
- Industry collaboration
- Domestic collaboration
- International collaboration
- Web Of Science research areas
- Materials Science, Multidisciplinary
- Metallurgy & Metallurgical Engineering
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