Estimation of Thermo-physical Properties of Metallic Alloys

In the pursuit of advancing the development of lightweight automobiles, a significant global focus has been on developing new lightweight materials that can be used with the high-pressure die casting (HPDC) process. HPDC offers a distinct advantage by enabling the production of near-net-shape components. An intrinsic characteristic of HPDC is its rapid solidification capability. Therefore, understanding the effect of high cooling rates associated with HPDC on the thermophysical properties of the new alloys is essential because it plays a critical role in controlling and developing apt filling and solidification models to enable the adaptation of these alloys into commercial production using HPDC. An experimental methodology utilizing an inverse heat transfer technique has been developed to study the variation of thermophysical properties of metallic alloys under rapid solidification conditions associated with HPDC. The developed methodology facilitates the estimation of temperature-dependent thermal diffusivity and thermal conductivity of the liquid and solid phases.