蜜桃视频久久久久久久,奶头好胀喷奶水快点揉揉啊哦,转帖区人妻区sisboard

Info

Title:: The Influence of α-Fe Content on the Microstructure and Magnetic Properties of NdFe10.5Mo1.5N/Xwt% α-Fe Multiphase Permanent Magnet Alloy

Author(s):: YIN Haolun; ZHU Zijian; MI Hongyao; FENG Yunli; College of Metallurgy and Energy, North China University of Science and Technology, Tangshan 063210, China

Keywords:: NdFe10.5Mo1.5N/Xwt% α-Fe alloy; microstructure; exchange coupling; magnetic property; saturation magnetization

Abstract:: The effect of α-Fe content on the microstructure and magnetic properties of NdFe10.5Mo1.5N/Xwt% α-Fe multiphase permanent magnetic alloy is studied. The alloy ingots are composed of α-Fe(Mo) phase, 1∶12 phase and Nd-rich phase. With the increase of α-Fe content, α-Fe(Mo) phase content gradually increases and 1∶12 phase content decreases. The grain size of the alloy ribbons gradually decreases with the increase of α-Fe content, the Nd-rich phase disappears, the α-Fe(Mo) phase content decreases and the 1∶12 phase content increases. After ball milling, the grain size of the alloy powder gradually decreases with the increase of α-Fe content, the α-Fe(Mo) phase content increases and the 1∶12 phase content decreases. After nitriding, the alloy powder is composed of α-Fe(Mo) phase and 1∶12 phase, and the grain size is refined with the increase of α-Fe content, which promotes the exchange coupling between soft and hard magnetic phases and improves the magnetic properties of the alloy powder. When X=6, the nitrided grain size of the alloy powder is the smallest, the exchange coupling between the soft and hard magnetic phases is enhanced and the magnetic properties are also the best. The remanence is 47.1 A·m2·kg-1, the saturation magnetization is 94.8 A·m2·kg-1, the coercivity is 0.33 T, and the maximum magnetic energy product is 93.13 kJ·m-3.