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Meeting 2020 TMS Annual Meeting & Exhibition
Symposium Hume-Rothery Symposium: Thermodynamics, Phase Equilibria and Kinetics for Materials Design and Engineering
Presentation Title Development of a Comprehensive Diffusion (mobility) Database for Lightweight Magnesium Alloys
Author(s) Wei Zhong, Ji-Cheng Zhao
On-Site Speaker (Planned) Wei Zhong
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.
Proceedings Inclusion? Undecided

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Development of a Comprehensive Diffusion (mobility) Database for Lightweight Magnesium Alloys
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