Abstract

The purpose of this research work is to determine the influence of the carbide phase and the austempering temperature on the mechanical properties of carbide-bainite ductile irons. Two groups of irons have been investigated: austempered at 300°, with a lower bainite structure, and at 400°, with an upper bainite structure. Tensile strength, yield strength, elongation, impact strength and hardness have been tested tested.