M. Maniruzzaman, R. D. Sisson, Worcester Polytechnic Institute, Worcester, MA

Summary: Quenching heat treatment process in a high pressure gas quenching chamber is simulated using a Computational Fluid Dynamics (CFD) simulation software. Gas flow field inside the chamber during cooling is studied and the surface heat transfer coefficients of the quenched part as a function of temperature are computed. The effect of gas flow rate on the quenching behavior of the quench parts are also evaluated. The computational results are verified using experimentally acquired time-temperature history of the quenched parts.Quenching heat treatment process in a high pressure gas quenching chamber is simulated using a Computational Fluid Dynamics (CFD) simulation software. Gas flow field inside the chamber during cooling is studied and the surface heat transfer coefficients of the quenched part as a function of temperature are computed. The effect of gas flow rate on the quenching behavior of the quench parts are also evaluated. The computational results are verified using experimentally acquired time-temperature history of the quenched parts.