financially supported by the National Natural Science Foundation of China under Grant(Nos.51805084 and No.51904187);Guangdong Basic and Applied Basic Research Foundation(Nos.2023B1515120086 and 2023A1515140124);the Fundamental Research Funds for the Central Universities(No.00007706).
The diffusion processes in bicrystalline Cu/Al joints,characterized by typical high-angle grain boundaries(GBs),were investigated using molecular dynamics simulations.It was found that GBs facilitated the diffusion of...