Shenyang National Laboratory for Materials Science;
Institute of Metal Research;
Chinese Academy of Sciences;
Shenyang 110016;
China;
School of Materials Science and Engineering;
University of Science and Technology of China;
Hefei 230026;
China;
College of Materials Science and Chemical Engineering;
Harbin Engineering University;
Harbin 150001;
China;
CuCrZr alloy; Nanotwins; Precipitation hardening; Aging; Electrical conductivity;