College of Materials Science and Engineering;
Key Laboratory of Advanced Functional Materials;
Education Ministry of China;
Beijing University of Technology;
Beijing 100124;
China;
National Physical Laboratory;
Hampton Road;
Teddington;
TW110LW;
UK;
Xiamen Tungsten Co.;
Ltd.;
Xiamen 361009;
China;
Cemented carbide; Grain size; Fracture; Surface oxidation; Grain pull-out; Wear resistance;