Wear: Achieving Ultralow Wear with Stable Nanocrystalline Metals (Adv. Mater. 32/2018)

Large-scale molecular dynamics simulations are used by Nicolas Argibay and co-workers in article number 1802026 to investigate the stress-dependent microstructural evolution of highly stable nanocrystalline alloys. They illustrate how an alloy of Pt with 10 at% Au shows suppression of grain growth at high tensile strains, resulting in cohesive failure of grain boundaries as the primary failure mechanism.