열간압연 된 Fe55Co17.5Ni10Cr12.5Mo5 고엔트로피합금의 소둔 조건에 따른 기계적 특성 변화
KCI
- Title
- 열간압연 된 Fe55Co17.5Ni10Cr12.5Mo5 고엔트로피합금의 소둔 조건에 따른 기계적 특성 변화
- Authors
- 박해돈; 배동화; 원종우; 문종언; 김형섭; 설재복; 성효경; 배재웅; 김정기
- Date Issued
- 2022-10
- Publisher
- 한국소성가공학회
- Abstract
- Although the mechanical properties of high-entropy alloys depend on the annealing conditions, limited works were established to investigate the annealing effect on the mechanical properties of Mo-added high-entropy alloys. Therefore, in the present work, the annealing effects on the microstructural evolution and mechanical properties of Mo-added high-entropy alloy were investigated. As a result, incomplete recrystallization from the limited annealing time not only suppresses deformation-induced phase transformation during cryogenic tensile test but also induces a deformation instability that results into the ductility reduction compare with the fully recrystallized sample. This result represents adjustment of annealing time is useful to control both transformation-induce plasticity and deformation instability of high-entropy alloys, and this can be applied to control the mechanical properties of metallic alloys by combining pre-straining and subsequent annealing.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/114651
- DOI
- 10.5228/KSTP.2022.31.5.273
- ISSN
- 1225-696X
- Article Type
- Article
- Citation
- 소성가공, vol. 31, no. 5, page. 273 - 280, 2022-10
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