Residual stresses and distortion of a ring in quenching-tempering process based on metallo-thermo-mechanics

This paper is concerned with the metallo-thermomechanical simulation of distortion and residual stresses as well as structural change in quenching-tempering process. Here, a method for evaluating volume fraction of structure change due to phase transformation governed by diffusion mechanism in the heating process before quenching and tempering process is proposed. Some results of the simulation for a ring shaped model of carbon steel are compared with the experimental data to verify the analytical results, and discussions are also given on the operating conditions in the quenching-tempering process.