CSPL [CSPL] Prof. Jung-Wook Cho: Effect of Zr addition on metastable Liquid-Liquid Phase Separation of Cu…
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댓글 0건 조회 668회 작성일 2022-02-22 10:09
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The liquid-liquid phase separation (LLPS) behavior was investigated in Cu-Fe alloys that consisted of 60 wt % or 80 wt % Cu and balance iron, without or with addition of 1 wt% Zr. Both Zr-free alloys clearly showed LLPS at metastable spinodal temperatures prior to γ-Fe nucleation, whereas Zr-added showed γ-Fe phase evolution without LLPS. Addition of Zr was highly effective to activate γ-Fe nucleation by decreasing the mixing enthalpy and also accelerating heterogeneous nucleation. A combination of thermal instrumental analysis and classical nucleation theory yielded an effective assessment made of LLPS behavior below the liquidus temperature of Cu-Fe alloys. Furthermore, it was possible to control the solidification mechanism of Cu-Fe alloy by zirconium addition.
관련링크
- 이전글[SSL] Prof. Sung-Joon Kim: Counter-balancing effects of Si on C partitioning and stacking fault energy of austenite in 10Mn quenching and partitioning steel 22.02.22
- 다음글[CSPL] Prof. Jung-Wook Cho: Numerical modeling of oxide particle evolution during additive manufacturing 22.02.08
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