CAS Key Laboratory of Magnetic Materials and Devices;
Ningbo Institute of Material Technology and Engineering;
Chinese Academy of Sciences;
Ningbo 315201;
China;
Chinalco Shandong Yinuowei Strong Magnetic Material Co.;
Ltd;
Taian 271600;
China;
Y substitution; Magnetic properties; Service performances; Nd-Fe-B sintered Magnets; Rare earths;