| Title |
Effect of Prior Deformation on the Martensitic Transformation temperature ( Ms ) in Fe - Ni Alloy |
| Authors |
문인기(In Ge Moon); 최종술(Chong 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. |