Constitutive Behavior and Modeling of Cast Aluminum Alloys during the Quenching Process

To predict the formation of residual stress, and hence the deformation, in cast aluminum alloys during quenching, a detailed mathematic description of the constitutive behavior of the alloys is required in the solutionized condition. In this work, a thermo-viscoplastic model was developed to model the as-quenched material constitutive behavior.  To calibrate the constitutive model, uniaxial tensile tests were performed over a range of temperatures (up to 500 °C) and strain-rates (from 10⁻³ to 1 s⁻¹) encompassing those normally experienced during the quenching process.