Files and links (1)
Published VersionCC BY V4.0, Open Access
Journal article
Influence of ECAP deformation routes on grain refinement, mechanical properties and texture of zinc
Materials Science and Engineering A: Structural Materials: Properties, Microstructures and Processing, Vol.945, pp.1-11
2025
Appears in UniSC Supported Open Access Outputs
Abstract
Zinc (Zn) has potential for applications such as bioresorbable implants but is held back by poor mechanical properties. Equal channel angular pressing (ECAP) enhances mechanical properties by refining the microstructures and can alter crystallographic texture and deformation mechanisms. Here, ECAP of Zn using four standard deformation routes (RA, RBA, RBC and RC - refer to Figure 1 for pressing sequences) was investigated to assess impacts on the microstructure and mechanical properties. Four passes of ECAP reduced the average grain sizes by >50 % and increased yield strengths by up to 80 % compared to the starting material. Varying the deformation route altered the material strain path which impacted microstructure refinement, including uniformity and crystallographic textures. Route A resulted in larger average grain size compared to other routes and there was significant variation of the grain size and hardness across the billet section. Route BC gave most consistent grain refinement and strengthening, while route C had the best processability as it allowed consistent preparation of crack-free billets with a smooth finish. Contrastingly, route BA resulted in heavily cracked billets, while route A led to cracking at the tail of billets. Characteristic crystallographic textures were induced by each route with BA, BC and C exhibiting dominant Y fibre textures, which is associated with ideal shear, oriented according to the material strain path. Meanwhile, less common dominant B fibre texture was formed in billets pressed by route A. The study provides insights to enhance mechanical properties of Zn by ECAP and to influence crystallographic textures which may affect corrosion and biodegradation behaviours.
Details
- Title
- Influence of ECAP deformation routes on grain refinement, mechanical properties and texture of zinc
- Authors
- Kurt Mills (Corresponding Author) - University of the Sunshine Coast, Queensland, School of Science, Technology and EngineeringHejie Li - University of the Sunshine Coast, Queensland, School of Science, Technology and EngineeringVladimir Luzin - Australian Nuclear Science and Technology OrganisationDamon Kent (Corresponding Author) - University of the Sunshine Coast, Queensland, School of Science, Technology and Engineering
- Publication details
- Materials Science and Engineering A: Structural Materials: Properties, Microstructures and Processing, Vol.945, pp.1-11
- Publisher
- Elsevier BV
- Date published
- 2025
- DOI
- 10.1016/j.msea.2025.149066
- ISSN
- 1873-4936; 0921-5093
- Copyright note
- © 2025 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
- Data Availability
- No external data sources were used for the research described in the article. All data in this paper are obtained from our experiment and are authentic and reliable. The publication of data has obtained the consent of all authors.
- Grant note
- This research was supported by an Australian Government Research Training Program Scholarship doi.org/10.82133/C42F-K220. This research was supported by an AINSE Ltd. Postgraduate Research Award (PGRA).
- Organisation Unit
- School of Science and Engineering - Legacy; GeneCology Research Centre - Legacy; School of Science, Technology and Engineering
- Language
- English
- Record Identifier
- 991158505802621
- Output Type
- Journal article
Metrics
11 Record Views