Deformation-Assisted Rejuvenation of Irradiation-Induced Phase Instabilities in Cu-Ta Heterophase Nanocomposite

The objective of this study is to determine the effects coupled deformation and irradiation extremes on Ta phase evolution in Cu-10at.%Ta nanocomposite. Heterophase nanocomposites with positive heat mixing offer exceptional mechanical properties, high temperature performance, tolerance. Here, we consider cooperative stability using transmission electron microscopy mapping during interrupted situ indentation. Following irradiation-induced dissolution nanoparticles, deformation-induced nanoparticle nucleation growth occur along grain boundaries. This result shows promise that may be stabilize or rejuvenate nanoparticles extreme environments.