Failure analysis of continuous casting rolls material and physical simulation of thermal fatigue loading

Abstract

The experimental method for physical modeling of operating conditions of a continuous billet casting ma-chine (CCM) rolls is developed to estimation the tempera-ture field and especially the temperature at the surface of the roll by measuring the temperature with the thermocou-ples (fully embedded) at multiple point inside the roll. The physical model allows for the automated re-cording of the quasi-stationary temperature field in the rolls surface layers and at various distances from its work-ing surface. The main mechanisms of impact failure in the service exposed CCM roll material are investigated at the maximum temperature of the thermal cycle.