State Key Laboratory of Hydraulic Engineering Simulation and Safety;
School of Materials Science and Engineering;
Tianjin University;
Tianjin 300354;
China;
School of Mechanical Engineering;
Tianjin University of Commerce;
Tianjin 300134;
China;
Southwestern institute of physics;
Chengdu;
Sichuan;
610041;
China;
Wrought 718Plus superalloy; γ’/γ’’coprecipitates; Long-term thermal exposure; Precipitate evolution;