Strain rate dependency of impact tensile properties in an AC4CH-T6 aluminum casting alloy

Abstract

In order to design an optimum balance between high safety and light weight, the materials used in the automobile industry must be evaluated on their mechanical characteristics especially under the dynamic loading conditions. However, such evaluation is rather difficult and no standard procedure is readily available. In this study, the strain rate dependency of tensile properties during the impact tensile test of an AC4CH-T6 high quality aluminum casting alloy has been examined. The strain rated dependency of the yield strength, percentage elongation and reduction of area of the alloy have been clarified and discussed.