논문 해외 국제전문학술지(SCI급) Investigation of plastic strain accommodation and recrystallization behavior in CoCrNiCux medium-entropy alloy
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2019-06
- 저자명 김정한,Jodi, DE (Jodi, Dennis Edgard),Lee, Y (Lee, Yongsu),Jang, MH (Jang, Myeong Hyeon),Jung, J (Jung, Juhee),Jang, J (Jang, Jonggwan),Kim, DW (Kim, Dong Woon),Jeon, JB (Jeon, Jong Bae),Park, N (Park, Nokeun)
- 학술지명 MATERIALS LETTERS
- 발행처명 ELSEVIER
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 9
홈페이지논문 초록 (Abstract)
The plastic strain accommodation and recrystallization behavior of the medium-entropy alloy (MEA) CoCrNiCux (x = 0, 0.66, 1 in molar ratio) were investigated. The addition of Cu induced phase separation phenomenon due to the positive mixing enthalpy of Cu with other constituent elements. This resulted in an alteration of the microstructure from a single solid-solution face-centered cubic (FCC) structure to Cu-lean FCC1 and Cu-rich FCC2 phases. Here, a higher recrystallization concentration in the Cu-rich region was observed compared to that of Cu-lean region. This occurred due to the lower hardness of Cu-rich region than Cu-lean region, which caused a greater plastic strain was accommodated in the Cu-rich region than in the Cu-lean region. Consequently, Cu-rich region tended to be more extensively recrystallized compared to that of Cu-lean region. (C) 2019 Elsevier B.V. All rights reserved.