Genetic Algorithm preditions validation by in-situ synchrotron X-ray diffraction

A genetic algorithm was developed to optimize High Entropy Alloys compositions. The focus was on achieving a single-phase face-centered cubic (FCC) structure and maximizing the Hall-Petch constant and Critical Resolved Shear Stress for grain refinement and solid solution effects. The range of compositions was chosen to induce Transformation-Induced Plasticity (TRIP) and Twinning-Induced Plasticity (TWIP) mechanisms. Synchrotron data from the ESRF ID11 beamline is crucial for validating the genetic algorithm's predictions. This beamline enables high-energy diffraction studies that could confirm the alloy single-phase FCC structure. It also enables pair distribution function (PDF) analysis to assess solid solution quality based on peak width. Additionally, ESRF ID11 can be equipped with ADMET mini load frame and Cryostream for in-situ synchrotron X-ray diffraction (SXRD) at 90K to 300K, essential for studying TRIP/TWIP effects at various strain rates in room and cryogenic temperatures.