Key Laboratory of Lightweight and High Strength Structural Materials of Jiangxi Province;
Nanchang University;
Nanchang 330031;
China;
Postdoctoral Research Station of Mechanical Engineering;
Nanchang University;
Nanchang 330031;
China;
Directed energy deposition; GH3039 superalloy; Ultrasonic micro-forging treatment; Microstructure evolution; Mechanical properties;