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Meeting 2021 TMS Annual Meeting & Exhibition
Symposium TMS-DGM Symposium: A Joint US-European Symposium on Linking Basic Science to Advances in Manufacturing of Lightweight Metals
Presentation Title High-throughput Evaluation of Hardening Potency and Solubility of Eight Alloying Elements in Magnesium
Author(s) Chuangye Wang, Wei Zhong, Ji-Cheng Zhao
On-Site Speaker (Planned) Chuangye Wang
Abstract Scope Liquid-solid diffusion couples (LSDCs) were able to generate the complete single-phase hcp solid solution compositions up to the solubility limit. Nanoindentation scans across the composition gradient in LSDCs allowed effective evaluation of composition-dependent hardness of eight alloying elements (Al, Ca, Ce, Gd, Li, Sn, Y, Zn) in the hcp Mg phase. The solute hardening coefficients were evaluated from the measured composition-hardness data and correlated with various properties such as atomic radius of the solutes. The hardening coefficients which are an indicator of the potency of solid-solution strengthening were found to be best correlated with the computed strengthening rates of the solutes. The composition profiles obtained from the LSDCs also allowed reliable evaluation of the solubility limits of these elements in the hcp Mg phase at various temperatures to provide valuable data for phase diagram and thermodynamic assessments. The solubility data are the first measurements for some of these elements.
Proceedings Inclusion? Planned:

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Al-Fe-Si Phase Stabilization Using Experimentally Validated Computational Thermodynamics
Fracture Mechanisms under Monotonic Tensile, Fatigue, and Creep Deformation of Cast Al-Cu-Mn-Zr Alloys: Impact of Brittle Intermetallic Grain Boundary Particles
High-throughput Evaluation of Hardening Potency and Solubility of Eight Alloying Elements in Magnesium
High-throughput Experimental Techniques to Measure the CRSS for Slip and Twinning in Mg and Mg Alloys
Solute-vacancy Clustering in Aluminum
Spatial Correlations between Strengthening Particles in Multi-phase Hardenable Aluminum Alloys
Stacking-fault Mediated Plasticity and Strengthening in Lean, Rare-earth Free Magnesium Alloys
Study of the Solidification Pathways of Hypo/hyper-eutectic Al-Ce over a Wide Range of Thermal Histories
The Microstructure, Morphology and Mechanical Properties of Rapidly Solidified Al-10wt%Si-0.4wt%Sc Alloy

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