Fig. 4: Hybrid Potts–Phase Field model simulations and electrical performance of TGV–Cu from 0 to 1008 hours.

a simulated microstructure evolution during grain growth (units in μm); b Comparison of experimental and simulated average grain size; c Simulated evolution of von Mises stress distribution (units in μm); d Total free energy of the system; e Simulated evolution of elastic energy during grain growth (units in μm); f I–V measurement results of TGV–Cu samples