Computational Evaluation of Cyclic Strength of Carburized Gears from Heat-Resistant Steels

An advanced model for computing the fatigue bending strength of gears fabricated from a complexly alloyed heat-resistant steel 16Kh3NVFMB-Sh (VKS-5) subjected to vacuum carburizing in acetylene is suggested. The model matches experimental data satisfactorily and has been used to develop a mode for vacuum carburizing of gears from the heat-resistant steel to provide a high fatigue resistance.