발간논문

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Vol.19, No.12, 1069 ~ 1075, 1981
Title
Effect of Prior Deformation on the Martensitic Transformation temperature ( Ms ) in Fe - Ni Alloy
문인기In Ge Moon, 최종술Chong Sool Choi
Abstract
The effect of prior plastic deformation of austenite on the subsequent martensitic transformation temperature(Ms) was studied in an Fe-32.7%Ni alloy. The Ms temperature was higher, at all deformation degree up to 80%, than that of undeformed austenite and showed a maximum between 30% and 50% deformation. The changes in free energy of austenite and martensite, and the energy required for martensitic transformation, associated with the austenite deformation, were discussed, and a graphical interpretation of the observed result was made on the basis of driving force for martensitic transformation.
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