Thermodynamic Analyses of Strain-induced Martensite Transformation in Fe-7Mn-1.2C Alloy

摘要

The Ms temperature, △Gγ→α,△Gγ→M and mechanical energy under a non-severe impact loading in a medium manganese steel （Fe-7Mn-1.2C） have been calculated by means of Xu’s Fe-X-C model. The relation between the yield strength of austenite and the driving force for martenede transformation has been established. It is proved that the martensite transformation can take place in a medium manganese steel （Fe-7Ma-1.2C alloy） under a non-severe impact loading.