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Recent work suggests that thermally stable nanocrystallinity in metals is achievable in several binary alloys by modifying grain boundary energies via solute segregation. The remarkable thermal stability of these alloys has been demonstrated in recent reports, with many alloys exhibiting negligible grain growth during prolonged exposure to near‐melting temperatures. Pt–Au, a proposed stable alloy...
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...
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