School of Materials Science and Engineering;
Harbin Institute of Technology;
Harbin 150001;
China;
School of Electromechanic Engineering;
Qingdao University;
Qingdao 266071;
China;
Centre of Excellence for Advanced Materials;
Dongguan 523808;
China;
cooling rate; solidification path; microstructure; lamellar spacing; microhardness;