1. State Key Laboratory of Precision Welding & Joining of Materials and Structures, Harbin Institute of Technology, Harbin 150001, China
2. Shandong Institute of Shipbuilding Technology, Weihai 264209, China
3. CRCC Qingdao Sifang Co., Ltd., Qingdao 266111, China
4. Nuclear Power Institute of China, State Key Laboratory of Advanced Nuclear Energy Technology, Chengdu 610213, China