Deformation Behavior of Micro-alloyed Steel by Using Thermo Mechanical Simulator and Finite Element Method

Micro-alloyed (MA) forging steels are becoming increasingly important economic alternative to the traditional quenched and tempered steels. MA steels do not require heat treatment after they are shaped into parts, as the required mechanical properties are obtained directly at the end of the process and save the cost and energy by reducing the number of operations. Also, these steels have achieved very good characteristics of toughness and weldability. These beneficial properties have been achieved by a careful control of chemical composition and by adopting suitably controlled thermo- mechanical processes. In this study, hot compression test on a medium carbon vanadium micro-alloyed steel grade 38MnVS6 has been performed on Gleeble-Thermo mechanical Simulator (TMS) in order to study the effect of forging temperature and strain rate on flow stress. Also the proposed process has been simulated using a forging process simulation software tool, DEFORMTM 3D V6.1.