National Defense Key Discipline Laboratory of Light Alloy Processing Science and Technology;
Nanchang Hangkong University;
Nanchang 330063;
China;
Key Laboratory of Metal High Performance Additive Manufacturing and Innovative Design;
MIIT China;
Northwestern Polytechnical University;
Xi’an 710072;
China;
Dimensionless heat input; Laser solid forming; High-strength steel; Microstructure; Mechanical property;