Multiple-stage strain hardening due to the deformation-induced martensitic transformation in additively manufactured high-entropy alloy
SCIE
SCOPUS
- Title
- Multiple-stage strain hardening due to the deformation-induced martensitic transformation in additively manufactured high-entropy alloy
- Authors
- Kwon Jihye; Haftlang Farahnaz; Choi Yeon Taek; Kim Eun Seong; Kim Hyoung Seop
- Date Issued
- 2024-01
- Publisher
- TAYLOR & FRANCIS INC
- Abstract
- This study investigates microstructural changes and the presence of multiple stages in strain hardening ratio (SHR) resulting from the sequential occurrence of deformation-induced martensitic transformation (DIMT) during the tensile deformation of an additively manufactured ferrous medium entropy alloy (AMed-FeMEA). The inherent microstructural heterogeneity in AMed-alloys contributes to distinctive deformation mechanisms and instantaneous hardening behavior at varying strain levels. To comprehensively address this phenomenon, a semi-empirical constitutive model is presented that associates multiple stages in SHR with the occurrence rate of DIMT. The model demonstrates its applicability by characterizing tensile deformation of AMed-FeMEA at both room temperature and liquid nitrogen temperature.,[GRAPHICS],
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/120700
- DOI
- 10.1080/21663831.2023.2292731
- ISSN
- 2166-3831
- Article Type
- Article
- Citation
- MATERIALS RESEARCH LETTERS, vol. 12, no. 1, page. 50 - 57, 2024-01
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