Department of Industrial Engineering, Tsinghua University, Beijing 100084, China;
Welding and Joining Institute, RWTH Aachen, Aachen 52062, Germany;
Department of Industrial Engineering, Tsinghua University, Beijing 100084, China;
Welding and Joining Institute, RWTH Aachen, Aachen 52062, Germany;
capacitor discharge welding; nickel-base alloy; hollow structure; tensile shear test; three-point bending test; micrographs;