School of Materials Science and Engineering,Zhengzhou University,Zhengzhou 450001,China;
BAIC Group Off-Road Vehicle Co.Ltd,Beijing 101300,China;
Department of Electromechanical Engineering,Faculty of Science and Technology,University of Macao,Macao,China;
Henan Key Laboratory of Advanced Magnesium Alloys,Zhengzhou 450002,China;
Martensitic steel; Friction stir welding; Heat-aff ected zone; Microstructure; Mechanical properties;