抄録
The paper deals with the simulation of carburized-quenching process as a coupling problem among temperature, metallic structure and stress with consideration of their dependence on carbon content. The distribution of carbon content was determined by using the diffusion equation. A set of coupled fundamental equations of heat conduction, transformation kinetics and elastic-plastic constitutive modelling were formulated to obtain temperature, metallic structure and stress.
The carburized-quenching process of a gear of nickel-chromium steel (SNC 815) was analyzed using the finite element technique. Also, the normal-quenching process was analyzed for comparison. The calculated results were compared with the experimental data of the distribution of residual stress, Vicker's hardness and micrographs showing metallic structures as well as carbon content.
