State Key Laboratory of Materials Processing and Die and Mould Technology;
Huazhong University of Science and Technology;
Wuhan 430074;
China;
Department of Welding Production;
Metrology;
and Technology of Materials;
Perm National Research Polytechnic University;
Perm 614990;
Russia;
Department of Mechanical Engineering;
Indian Institute of Technology Bombay;
Mumbai 400076;
India;
Selective laser melting; Mesoscopic model; Ambient pressure; Transport phenomena;