| Abstract Scope |
Diffusion coefficients are essential data for kinetic simulations of materials processes and properties. A systematic study was performed to collect both impurity (dilute) diffusion coefficients and interdiffusion coefficients of several key alloying elements of lightweight Mg alloys. High-throughput diffusion multiples and novel liquid-solid diffusion couples are combined with a forward-simulation analysis to extract a large amount of diffusion coefficients of Al, Ca, Ce, Gd, Li, Mn, Sn, Y and Zn in Mg. A comprehensive and reliable diffusion coefficient (mobility) database for Mg-based systems is established by integrating the experimental measurements on these 9 elements with first-principles calculation results as well as limited measurements on other elements. The comprehensive mobility database covering more than 20 elements will contribute to the accelerated development of next-generation Mg alloys. |