Hierarchically heterogeneous microstructure and mechanical behavior of the multi-materials prepared by powder severe plastic deformation
SCIE
SCOPUS
- Title
- Hierarchically heterogeneous microstructure and mechanical behavior of the multi-materials prepared by powder severe plastic deformation
- Authors
- SON, SUJUNG; Lee, Jungwan; Asghari-Rad, Peyman; Kim, Rae Eon; Park, Hyojin; Jang, Jae-il; Chen, Wen; HEO, YOON UK; KIM, HYOUNG SEOP
- Date Issued
- 2023-11
- Publisher
- TAYLOR & FRANCIS INC
- Abstract
- A heterostructuring strategy is an effective approach for abiding problems referred to as the strength-ductility trade-off. However, tailoring the heterostructure is an arduous problem. This work synthesized hierarchically heterogeneity by combining the eutectic high-entropy alloy (EHEA) and medium-entropy alloy powders through novel powder metallurgy-based severe plastic deformation (P-SPD). EHEA forms nano-scaled heterogeneity composed of FCC and B2, and the mixture of powder types forms micro-scale heterogeneity with hard and soft domains. This hierarchically heterogeneous microstructure leads to strong hetero-deformation-induced strengthening, achieving a yield strength of ∼1.5 GPa. The present P-SPD represents the feasibility of heterostructuring, aiding the development of HEAs. © 2023 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/118933
- DOI
- 10.1080/21663831.2023.2258158
- ISSN
- 2166-3831
- Article Type
- Article
- Citation
- Materials Research Letters, vol. 11, no. 11, page. 915 - 924, 2023-11
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