The effect of Y substitution for double main phase Nd- Y- Fe- B magnet properties and microstructure
ZHONG Shu- wei1, DU Jun- feng2,3, PANG Zai- sheng3, QI Zhi- qi3, YU Xi2,3, WANG Liang- liang2, LIU Bin2, XU Cai- long2, ZHONG Kang3, ZHONG Chang- chuan2,3, CAI Xiao- yong3, JU Zhi- hua3, YANG Mu- nan1,2
1. Department Materials Science and Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi, China 2. Jiangxi Rare- earth Magnet Material and Device Engineering Research Center, Ganzhou 341000, Jiangxi,China 3. Fortune Electronics Incorporated Company, Ganzhou 341000, Jiangxi,China
Abstract：Low cost Nd- Y- Fe- B sintered magnets were prepared by double main phase method, and the effects of high abundance rare earth Y with different substitution quantity on the phase composition, density, microstructure, magnetic properties and mechanical property of the magnets were investigated. The result shows that a small number of Y substituting does not result in a significant decrease in magnetic properties. The remanence, coercivity, and magnetic energy product of the magnet keep in 1. 32 T、955. 25 kA/m and 336. 3 kJ/m3 when the Y substitution content is 10%（mass fraction）, and the hardness and cutting performance are also excellent. However, it is further increase amount of Y substitution, which make new RE- rich phase high content in Y and O, the number of hole detects also increase. Magnetic properties, hardness, and cutting performance are greatly reduced.
钟淑伟，杜君峰 ，庞再升，戚植奇，喻玺 ，王亮亮，刘滨，许才龙，钟康，钟长传 ，蔡小勇，剧智华，杨牧南 . Y取代量对双主相Nd- Y- Fe- B磁体性能与微观组织的影响[J]. , 2017, 24(5): 32-37.
ZHONG Shu- wei, DU Jun- feng,, PANG Zai- sheng, QI Zhi- qi, YU Xi,, WANG Liang- liang, LIU Bin, XU Cai- long, ZHONG Kang, ZHONG Chang- chuan,, CAI Xiao- yong, JU Zhi- hua, YANG Mu- nan,. The effect of Y substitution for double main phase Nd- Y- Fe- B magnet properties and microstructure. , 2017, 24(5): 32-37.
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2017, Vol. 24 
