Abstract：Fe-based amorphous nanocrystalline alloy has excellent soft magnetic properties, the dual-phase structure of the amorphous phase and the crystal phase can be obtained through heat treatment process. In the process of magnetic properties of the material generation, the brittleness and magnetic crystal anisotropy of the material is also increasing. In order to reduce the impact of debris generation and external stress on the magnetic properties of the alloy after heat treatment, it is necessary to protect it when actually used. A common method of reducing stress sensitivity is to adjust the alloy composition and heat treatment process, but the impact on different protection methods has rarely been reported. In practice, the stress sensitivity of the core can be reduced by selecting the curing paint of the appropriate composition, and the temperature stability of the core product can be improved.
[1] Motoki O, Yoshizawa Y.Magnetic properties of high Bs Fe-Cu-Si-B nanocrystalline soft magnetic alloys [J]. [J].Journal of Magnetism and Magnetic Materials, 2008(320), 320(1):e750-e753
[2] Suzuki K, Ito N, Gariaonandia J S.High saturation magnetization and soft magnetic properties of nanocrystalline (Fe, Co)90Zr7B3 alloys annealed under a rotating field [J]. [J].Journal of Applied Physics, 2006, 99(1):08F114-1-08F114-3
[3]Lee M C, Lin C Y, Chin T S.High permeability nanocrystalline FeSiBTaAg ribbons obtained by direct casting[J].Intermetallics, 2007, 15(12):1564-1567
[4] Do Kim, Y.; Chung, J. Y.; Kim, J.; Jeon, H. Formation of Nanocrystalline Fe–Co Powders Produced by Mechanical Alloying. [J].Mater. Sci. Eng. A. , 2000, 291(1):17-21
[5] Chauhan, A.; Vaish, R. Magnetic Material Selection Using Multiple Attribute Decision Making Approach. [J].Mater. Design. , 2012, 36(1):1-5
[6] A Kolano-Burian, J Ferenc, T Kulik.Structure and magnetic properties of high temperature nanocrystalline Fe-Co-Cu-Nb-Si-B alloys [J]. [J].Mater Sci Eng., 2004, A375-377(1):1078-1082
[7]A.Mitra, H.Y. Kim, D.V. Louzguine, N. Nishiyama, B. Shen, A. Inoue, Structure and magnetic properties of amorphous and nanocrystalline Fe40Co40Cu0. 5Zr9Al2Si4B4.5 alloys, J. Magn. [J].Magn. Mater., 2004, 278(1):299-305
[8] Johson F, Um C Y, McHenry M E, et al.The influence of composition and field annealing on magnetic properties of FeCo-based amorphous and nanocrystalline alloys [J]. [J].Journal of Magnetism and Magnetic Materials, 2006, 297(1):93-98
[9]Johnson F, Garmestani H, Chu S Y, et al.Induced anisotropy in FeCo-based nanocrystalline ferromagnetic alloys (Hitperm) by very high field annealing[J].IEEE Transactions on Magnetics, 2004, 40(4):2697-2699
[10] Makino A, Bitoh T, Kojima A, et al.Magnetic properties of zero-magnetostrictive nanocrystalline Fe-Zr-Nb-B soft magnetic alloys with high magnetic induction [J]. [J].Journal of Magnetism and Magnetic Materials, 2000, 215-216(1):288-292
[11] Willard M A, Laughlin D E, Mchenry M E, et al.Structure and magnetic properties of (Fe0.5Co0.5)73.5Zr7B4Cu1[J], [J].Journal of Applied Physics, 1998, 84(1):6773-6777
[12] Herzer G.Grain structure and magnetism of nanocrystalline ferromagnets [J][J].IEEE Transactions on Magnetics, 1989, 25(5):3327-3329
[13] Herzer G.Modern soft magnets: amorphous and nanocrystalline materials [J]. [J].Atca Materiallia, 2013, 61(1):718-734
[14] Herzer G.Grain size dependence of coercivity and permeability in nanocrystalline ferromagnets [C].IEEE International Magnetics Conference, Brighton UK, 1990, 26(5):1397-1402
[15]王轶，姚可夫，翟桂东.块体纳米晶材料制备的研究进展[J].热加工工艺, 2003, 2(1):48-50
[16] Yoshizawa Y，Oguma S，Yamauchi K．.New Fe based soft magnetic alloys composed of ultrafine grain structure[J]．[J].Journal of Applied Physics, 1988, 64(1):6044-6046
[17] Song Qiang，Qin Shuqing..Effects of two-step annealing on the magnetic properties of iron-based nanocrystalline soft magnetic material[J]．[J].Materials Science Forum, 2011, 688(1):353-357
[18]Herzer G, Budinsky V, Polak C.Magnetic properties of FeCuN‐ bSiB nanocrystallized by flash annealing under high tensile stress[J].Phys. Status Solidi B-Basic Solid State Phys., 2011, 248(10):2382-2388
[19] Nutor R K, Xu X J, Fan X Z, et al.Effects of applying tensile stress during annealing on the GMI and induced anisotropy of Fe-Cu-Nb-Si-B alloys [J]. [J].J. Magn. Magn. Mater., 2019, 1(1):471-544
[20] Miguel C，Azhukov，del Val J J，et al．.Coercivity and induced magnetic anisotropy by stress and/or field annealing in Fe- and Co-based (finemet-type) amorphous alloys[J]．[J].Journal of Magnetism and Magnetic Materials, 2005, 284(1):245-251
[21] Flohrer G，Herzer G．.Random and uniform anisotropy in soft magnetic nanocrystalline allys (invited) [J]．[J].Journal of Magnetism and Magnetic Materials, 2010, 322(1):1511-1514
[22]王志辉，黄强，将达国.退火温度对 . . 合金带材磁性能的影响[J].井冈山大学学报自然科学版, 2017, 38(6):71-76
2022, Vol. 29 