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Vol.34, No.11, 1394 ~ 1399, 1996
Title
Thermodynamics of γ→ε Martensitic Transformation in Fe-Mn Binary Alloys
이영국 Young Kook Lee , 전중환 Joong Hwan Jun , 최종술 Chong Sool Choi
Abstract
In order to avoid the confusion due to inconsistency between thermodynamic calculations(free energy difference between γ and ε, △G γ→ε of γ→ε martensitic transformation for Fe-Mn binary alloys reported by previous workers, the thermodynamic data of Fe-Mn alloys, △G(γ→ε)Fe and △G(γ→ε)Mn, were newly formulated, and the thermodynamic calculations of γ→ε martensitic transformation for the Fe-Mn binary alloys were performed with a regular solution model. The calculation results were well consistent with experimental results in wide range of 15 to 28wt%Mn, and were closely approached to Takaki`s calculation results rather than Murakami`s calculation results.
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