AbstractSince seven years the Collaborative Research Center SFB 570 deals successfully with the ascertainment, description, and simulation of distortion. This paper aims to subjoin how carburizing and with it the case hardening process affects the already described effects of distortion and how the effects interact with each other. Due to carburizing a gradient in chemical composition is adjusted in the component. This affects not only a change in mechanical properties but also in the transformation behaviour. The local properties result in a locally varying influence on internal stresses during heating and cooling processes and deformations. Shape changes can therefore be massively influenced by the carbon profile. So far investigations have been carried out with disks and recessed shafts. Interactions to carburizing parameters appear between the intensity of segregations, the deformation parameters, stacking arrangements und quenching parameters.