Transformation Induced Plasticity (trip) of Sae 52100 Steel During Martensitic and Bainitic Transformations

Abstract

Transformation induced plasticity (TRIP) of SAE 52100 steel during quenching is investigatedboth experimentally and theoretically. TRIP parameter (K) is determinedexperimentally for both martensitic and bainitic transformations by using the stresseddilatometry technique. A new method for extraction of for an incomplete transformationis suggested for the martensitic transformation. Theoretical calculations using wellestablishedmodels for the TRIP effect and the results from the literature are used forthe justification of the results of this work. The results for bainitic transformation isfound to be in good agreement with both the literature and theoretical calculations usingLeblond`s model. On the other hand, experimentally determined value is found to besignificantly different from the literature. Nevertheless, it is still in reasonable agreementwith the calculations using Leblond`s model.