This animation focuses on non-uniform cooling during high pressure gas quench (HPGQ). For this model, we adjusted the convection heat transfer boundary condition to simulate a crossflow over the ring gear during quenching. The leading edge (bottom) of the gear is assigned a convection coefficient of 800W/(m^2*K), while the trailing edge is assigned a lower value of 500W/(m^2*K). This results in a temperature difference in the part during quench, which leads to non-uniform phase transformations, as shown with the austenite and martensite contours.
Tags: High Pressure Gas Quench, Non-uniform, Phase transformation, and Boundary conditions