| Abstract Scope |
Magnesium is a promising material for lightweighting in the transportation industries due to its low density and high specific strength. Fatigue performance is a primary concern for structural parts, and accurate modelling of fatigue in novel magnesium alloy compositions requires a detailed understanding of the role of solutes on modification of texture, slip mode critical resolved shear strengths, and cyclic twinning-detwinning behavior. In this study, pure magnesium and Mg-4wt.%Al, Mg-7.5wt.%Y, and Mg-2.4wt.%Nd binary alloys were characterized during single cycle compression-tension displacement experiments using High Energy X-Ray Diffraction Microscopy (HEDM) at the Cornell High Energy Synchrotron Source (CHESS). The impact of binary solute additions on macroscopic and grain-scale mechanical response, full-volume twin activity, and texture evolution was investigated with a combination of far-field HEDM, near-field HEDM, and crystal plasticity finite element modelling, and the datasets are published publicly on the Materials Commons information repository. |