Abstract Scope |
While magnesium (Mg) alloys have substantial potential for lightweighting the transportation sector and beyond, two of the significant challenges facing Mg alloy research are its strong crystallographic texture and its propensity to deform via twinning. As an experimentalist group collaborating within the DOE-BES funded PRISMS Center, we aim to provide new, fundamental scientific insights into these challenges via the application and advancement of in-situ diffraction microstructure imaging (DMI) techniques, including: near-field, far-field, and laboratory high-energy diffraction microscopy (nf-, ff-, and lab-HEDM), high-resolution X-ray diffraction (HR-XRD), diffraction contrast tomography (DCT), and dark-field X-ray microscopy (DFXM). In this talk, we will present two experiments that investigate the two challenges listed above: one that measures the 3D in-situ emergence and evolution of (1) recrystallized grains during static recrystallization, and one that measures the 3D in-situ emergence and evolution of (2) twins and interfacial stress concentrations at twin/grain boundaries during tensile loading. |