Abstract
Residual stress and deformation occur by the change of mechanical properties and volume caused by phase transformation during quenching. In the past, elasto-plastic analysis combined with phase transformation analysis method, in which volume fraction of 4 phases (Ferrite, Pearlite, Bainite and Martensite) during heat treatment process can be individually taken into account, was constructed for the prediction of residual stress caused by heat treatment such as induction hardening. In this paper, changes of stress and strain during tempering are taken into account and applied to the prediction of residual stress of S50C steel crankshaft to verify the validity of this method.
