高饱和磁化强度铁基非晶纳米晶软磁合金发展概况
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摘要
概括了铁基非晶软磁合金和纳米晶合金的发展历史和现状,分别详述了高饱和磁化强度(Bs)铁基块体和薄带非晶以及纳米晶合金近年来的研究成果.主要内容包括:高饱和磁化强度块体铁基非晶软磁合金成分和性能,高饱和磁化强度铁基非晶薄带软磁合金的成分和性能,高饱和磁化强度铁基纳米晶合金的组织、结构和性能,各类元素对合金磁性能的影响.为进一步研究高饱和磁化强度的铁基软磁材料提供了有价值的参考.
Iron-based amorphous alloys exhibit many desirable features,such as low coercivity,high permeability,high electrical resistivity,low loss,and good frequency characteristics,which make them a kind of viable energy-saving and environmentally-friendly materials. Their attractive features are due to their isotropic property,small structural correlation dimension,and magnetic anisotropic constant. The interactive coupling between the α-iron(Fe) nanocrystalline phase and amorphous soft magnetic phase further reduces the magnetic anisotropy and magnetostrictive effect of the Fe-based amorphous and nanocrystalline composites. Therefore,Fe-based amorphous and nanocrystalline alloys have a high saturation flux density and high magnetic permeability,and have been widely applied for electric power,electronics,and information transmission and conversion industries. Now,Fe-based amorphous and nanocrystalline alloys have been produced and applied to various areas on a large scale. In this paper,the development histories,situation,and tendency of Fe-based amorphous and nanocrystalline alloyswere briefly summarized. The research results of Fe-based bulk and ribbon amorphous alloys,along with nanocrystalline alloys with high saturation flux density(Bs),were reviewed in detail. The main contents of this paper include the compositions and properties of high-BsFe-based bulk and ribbon amorphous alloys; the compositions,structure and properties of high-BsFe-based nanocrystalline alloys; and the effects of alloying elements on the magnetic properties. These results will provide valuable insights that can be used for the development of Fe-based soft magnetic materials with a high saturation flux density.
Iron-based amorphous alloys exhibit many desirable features,such as low coercivity,high permeability,high electrical resistivity,low loss,and good frequency characteristics,which make them a kind of viable energy-saving and environmentally-friendly materials. Their attractive features are due to their isotropic property,small structural correlation dimension,and magnetic anisotropic constant. The interactive coupling between the α-iron(Fe) nanocrystalline phase and amorphous soft magnetic phase further reduces the magnetic anisotropy and magnetostrictive effect of the Fe-based amorphous and nanocrystalline composites. Therefore,Fe-based amorphous and nanocrystalline alloys have a high saturation flux density and high magnetic permeability,and have been widely applied for electric power,electronics,and information transmission and conversion industries. Now,Fe-based amorphous and nanocrystalline alloys have been produced and applied to various areas on a large scale. In this paper,the development histories,situation,and tendency of Fe-based amorphous and nanocrystalline alloyswere briefly summarized. The research results of Fe-based bulk and ribbon amorphous alloys,along with nanocrystalline alloys with high saturation flux density(Bs),were reviewed in detail. The main contents of this paper include the compositions and properties of high-BsFe-based bulk and ribbon amorphous alloys; the compositions,structure and properties of high-BsFe-based nanocrystalline alloys; and the effects of alloying elements on the magnetic properties. These results will provide valuable insights that can be used for the development of Fe-based soft magnetic materials with a high saturation flux density.
引文
[1]Luborsky F E.Applications of amorphous alloys.IEEE Trans Magn,1978,14(5):1008
[2]Ng H W,Hasegawa R,Lee A C,et al.Amorphous alloy core distribution transformers.Proc IEEE,1991,79(11):1608
[3]Hasegawa R.Applications of amorphous magnetic alloys.Mater Sci Eng A,2004,375-377:90
[4]Gubanov A I.Quasi-classical theory of amorphous ferromagnetics.Sov Phys-Solid State,1960,2(3):468
[5]Duwez P,Lin S C H.Amorphous ferromagnetic phase in iron-carbon-phosphorus alloys.J Appl Phys,1967,38(10):4096
[6]Pond R J R,Maddin R.Method of producing rapidly solidified filamentary castings.Trans AIME,1969,245(11):2475
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[9]Kabacoff L T.Thermal,magnetic,and magnetomechanical properties of Metglas 2605 S2 and S3.J Appl Phys,1982,53(11):8098
[10]Spano M L,Hathaway K B,Savage H T.Magnetostriction and magnetic anisotropy of field annealed Metglas*2605 alloys via dc M-H loop measurements under stress.J Appl Phys,1982,53(3):2667
[11]Bertotti G.General properties of power losses in soft ferromagnetic materials.IEEE Trans Magn,1988,24(1):621
[12]Yoshizawa Y,Oguma S,Yamauchi K.New Fe-based soft magnetic alloys composed of ultrafine grain structure.J Appl Phys,1988,64(10):6044
[13]Suzuki K,Makino A,Inoue A,et al.Soft magnetic properties of nanocrystalline bcc Fe-Zr--B and Fe-M--B--Cu(M=transition metal)alloys with high saturation magnetization.J Appl Phys,1991,70(10):6232
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[15]Hagiwara M,Inoue A,Masumoto T.Mechanical properties of Fe-Si-B amorphous wires produced by in-rotating-water spinning method.Metall Trans A,1982,13(3):373
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[17]Inoue A,Zhang T,Takeuchi A.Bulk amorphous alloys with high mechanical strength and good soft magnetic properties in Fe-TMB(TM=IV-VIII group transition metal)system.Appl Phys Lett,1997,71(4):464
[18]Zhang W,Inoue A.Thermal and magnetic properties of Fe-CoLn-B(Ln=Nd,Sm,Tb or Dy)amorphous alloys with high magnetostriction.Mater Trans JIM,1999,40(1):78
[19]Zhang T,Inoue A.Bulk glassy alloys in(Fe,Co,Ni)-Si-B system.Mater Trans,2001,42(6):1015
[20]Lin C Y,Tien H Y,Chin T S.Soft magnetic ternary iron-boronbased bulk metallic glasses.Appl Phys Lett,2005,86(16):162501
[21]Shen B L,Akiba M,Inoue A.Excellent soft-ferromagnetic bulk glassy alloys with high saturation magnetization.Appl Phys Lett,2006,88(13):131907
[22]Gao J E,Li H X,Jiao Z B,et al.Effects of nanocrystal formation on the soft magnetic properties of Fe-based bulk metallic glasses.Appl Phys Lett,2011,99(5):052504
[23]O'handley R C,Hasegawa R,Ray R,et al.Ferromagnetic properties of some new metallic glasses.Appl Phys Lett,1976,29(6):330
[24]Inoue A,Shen B L,Chang C T.Fe-and Co-based bulk glassy alloys with ultrahigh strength of over 4000 MPa.Intermetallics,2006,14(8-9):936
[25]Inoue A,Zhang T,Takeuchi A.Bulk amorphous alloys with high mechanical strength and good soft magnetic properties in Fe-TMB(TM=IV-VIII group transition metal)system.Appl Phys Lett,1997,71(4):464
[26]Inoue A,Shen B L,Chang C T.Super-high strength of over4000 MPa for Fe-based bulk glassy alloys in[(Fe1-xCox)0.75B0.2Si0.05]96Nb4system.Acta Mater,2004,52(14):4093
[27]Chang C T,Shen B L,Inoue A.Fe Ni-based bulk glassy alloys with superhigh mechanical strength and excellent soft-magnetic properties.Appl Phys Lett,2006,89(5):051912
[28]Li F S,Shen B L,Makino A,et al.Excellent soft-magnetic properties of(Fe,Co)-Mo-(P,C,B,Si)bulk glassy alloys with ductile deformation behavior.Appl Phys Lett,2007,91(23):234101
[29]Wang J F,Li R,Hua N B,et al.Ternary Fe-P-C bulk metallic glass with good soft-magnetic and mechanical properties.Scripta Mater,2011,65(6):536
[30]Wang J F.Ternary Fe-P-C Bulk Metallic Glass with Good SoftMagnetic and Mechanical Properties[Dissertation].Beijing:Beihang University,2011(王剑锋.Fe-P-C系非晶合金的形成能力及性能研究[学位论文].北京:北京航空航天大学,2011)
[31]Makino A,Kubota T,Chang C T,et al.Fe Si BP bulk metallic glasses with unusual combination of high magnetization and high glass-forming ability.Mater Trans,2007,48(11):3024
[32]Zhang J H,Chang C T,Wang A D,et al.Development of quaternary Fe-based bulk metallic glasses with high saturation magnetization above 1.6 T.J Non-Cryst Solids,2012,358(12-13):1443
[33]Si J J,Mei J N,Wang R S,et al.Fe--B-Si-Zr bulk metallic glasses with ultrahigh compressive strength and excellent soft magnetic properties.Mater Lett,2016,181:282
[34]Liu F J,Yao K F,Ding H Y.Fe-based glassy alloys with high iron content and high saturation magnetization.Intermetallics,2011,19(11):1674
[35]Meng S Y,Ling H B,Li Q,et al.Development of Fe-based bulk metallic glasses with high saturation magnetization.Scripta Mater,2014,81:24
[36]Naoe M,Ogawa Y,Yoshizawa Y.Fe-base Amorphous Alloys Ribbons:China Patent,CN1721563A.2006-1--18(直江昌武,小川雄一,吉泽克仁.铁基非晶态合金带:中国专利,CN1721563A.2006--1-18)
[37]Wang A D,Zhao C L,Men H,et al.Fe-based amorphous alloys for wide ribbon production with high Bsand outstanding amorphous forming ability.J Alloys Compd,2015,630:209
[38]Suzuki K,Kataoka N,Inoue A,et al.High saturation magnetization and soft magnetic properties of bcc Fe--Zr-B alloys with ultrafine grain structure.Mater Trans JIM,1990,31(8):743
[39]Willard M A,Laughlin D E,Mc Henry M E,et al.Structure and magnetic properties of(Fe0.5Co0.5)88Zr7B4Cu1nanocrystalline alloys.J Appl Phys,1998,84(12):6773
[40]Ohta M,Yoshizawa Y.Magnetic properties of nanocrystalline Fe82.65Cu1.35SixB16-xalloys(x=0--7).Appl Phys Lett,2007,91(6):062517
[41]Ohta M,Yoshizawa Y.High Bsnanocrystalline Fe84-x-yCuxNby Si4B12alloys(x=0.0--1.4,y=0.0--2.5).J Magn Magn Mater,2009,321(14):2220
[42]Makino A,Men H,Kubota T,et al.New Fe-metalloids based nanocrystalline alloys with high Bsof 1.9 T and excellent magnetic softness.J Appl Phys,2009,105(7):07A308
[43]Kong F L,Wang A D,Fan X D,et al.High Bs Fe84-xSi4B8P4Cux(x=0-1.5)nanocrystalline alloys with excellent magnetic softness.J Appl Phys,2011,109(7):07A303
[44]Wang A D,Men H,Shen B L,et al.Effect of P on crystallization behavior and soft-magnetic properties of Fe83.3Si4Cu0.7B12-xPx nanocrystalline soft-magnetic alloys.Thin Solid Films,2011,519(23):8283
[45]Kong F L,Chang C T,Inoue A,et al.Fe-based amorphous soft magnetic alloys with high saturation magnetization and good bending ductility.J Alloys Compd,2014,615:163
[46]Sharma P,Zhang X,Zhang Y,et al.Influence of microstructure on soft magnetic properties of low core loss and high BsFe85Si2B8P4Cu1nanocrystalline alloy.J Appl Phys,2014,115(17):17A340
[47]Liu W L,Wang Y G,Chen F G.Investigation of microstructure and magnetic properties of Fe81Si4B12-xP2Cu1Mx(M=Cr,Mn and V;x=0,1,2,3)melt spun ribbons.J Alloys Compd,2015,622:751
[48]Takenaka K,Setyawan A D,Sharma P,et al.Industrialization of nanocrystalline Fe-Si--B--P--Cu alloys for high magnetic flux density cores.J Magn Magn Mater,2016,401:479
[49]Suzuki A,Makino A,Inoue A,et al.Soft magnetic properties of nanocrystalline bcc Fe--Zr--B and Fe--M-B-Cu(M=transition metal)alloys with high saturation magnetization.J Appl Phys,1991,70(10):6232
[50]Ohta M,Yoshizawa Y.Magnetic properties of high-BsFe-CuSi-B nanocrystalline soft magnetic alloys.J Magn Magn Mater,2008,320(20):e750
[51]Urata A,Yamaki M,Takahashi M,et al.Low core loss of non-Si quaternary Fe83.3B8P8Cu0.7nanocrystalline alloy with high Bsof1.7 T.J Appl Phys,2012,111(7):07A335
[52]Li Z Z,Wang A D,Chang C T,et al.Fe Si BPNb Cu alloys with high glass-forming ability and good soft magnetic properties.Intermetallics,2014,54:225
[53]Lopatina E,Soldatov I,Budinsky V,et al.Surface crystallization and magnetic properties of Fe84.3Cu0.7Si4B8P3soft magnetic ribbons.Acta Mater,2015,96:10
[54]Xiang Z,Wang A D,Zhao C L,et al.Optimization of thermal stability and soft-magnetic properties of Fe Si BPCu Nb alloys by Nb content tuning.J Alloys Compd,2015,622:1000
[55]Jafari S,Beitollahi A,Yekta B E,et al.Three-dimensional atom probe analysis and magnetic properties of Fe85Cu1Si2B8P4melt spun ribbons.J Magn Magn Mater,2016,401:1123
[56]Han Y,Inoue A,Kong F L,et al.Softening and good ductility for nanocrystal-dispersed amorphous Fe--Co-B alloys with high saturation magnetization above 1.7 T.J Alloys Compd,2016,657:237
[57]Li X L,Liu J B,Qu C R,et al.Effects of Nb on the precipitation ofα-Fe,glass forming ability and magnetic properties of Fe85B10P5alloys.J Alloys Compd,2017,694:643
[58]Xia G T,Wang Y G,Dai J,et al.Effects of Cu cluster evolution on soft magnetic properties of Fe83B10C6Cu1metallic glass in twostep annealing.J Alloys Compd,2017,690:281
[2]Ng H W,Hasegawa R,Lee A C,et al.Amorphous alloy core distribution transformers.Proc IEEE,1991,79(11):1608
[3]Hasegawa R.Applications of amorphous magnetic alloys.Mater Sci Eng A,2004,375-377:90
[4]Gubanov A I.Quasi-classical theory of amorphous ferromagnetics.Sov Phys-Solid State,1960,2(3):468
[5]Duwez P,Lin S C H.Amorphous ferromagnetic phase in iron-carbon-phosphorus alloys.J Appl Phys,1967,38(10):4096
[6]Pond R J R,Maddin R.Method of producing rapidly solidified filamentary castings.Trans AIME,1969,245(11):2475
[7]Makino A,Hatanai T,Inoue A,et al.Nanocrystalline soft magnetic Fe-M-B(M=Zr,Hf,Nb)alloys and their applications.Mater Sci Eng A,1997,226-228:594
[8]Hasegawa R,O'Handley R C,Tanner L E,et al.Magnetization,magnetic anisotropy,and domain patterns of Fe80B20glass.Appl Phys Lett,1976,29(3):219
[9]Kabacoff L T.Thermal,magnetic,and magnetomechanical properties of Metglas 2605 S2 and S3.J Appl Phys,1982,53(11):8098
[10]Spano M L,Hathaway K B,Savage H T.Magnetostriction and magnetic anisotropy of field annealed Metglas*2605 alloys via dc M-H loop measurements under stress.J Appl Phys,1982,53(3):2667
[11]Bertotti G.General properties of power losses in soft ferromagnetic materials.IEEE Trans Magn,1988,24(1):621
[12]Yoshizawa Y,Oguma S,Yamauchi K.New Fe-based soft magnetic alloys composed of ultrafine grain structure.J Appl Phys,1988,64(10):6044
[13]Suzuki K,Makino A,Inoue A,et al.Soft magnetic properties of nanocrystalline bcc Fe-Zr--B and Fe-M--B--Cu(M=transition metal)alloys with high saturation magnetization.J Appl Phys,1991,70(10):6232
[14]Makino A,Men H,Kubota T,et al.New Fe-metalloids based nanocrystalline alloys with high Bs of 1.9 T and excellent magnetic softness.J Appl Phys,2009,105(7):07A308
[15]Hagiwara M,Inoue A,Masumoto T.Mechanical properties of Fe-Si-B amorphous wires produced by in-rotating-water spinning method.Metall Trans A,1982,13(3):373
[16]Inoue A,Gook J S.Fe-based ferromagnetic glassy alloys with wide supercooled liquid region.Mater Trans JIM,1995,36(9):1180
[17]Inoue A,Zhang T,Takeuchi A.Bulk amorphous alloys with high mechanical strength and good soft magnetic properties in Fe-TMB(TM=IV-VIII group transition metal)system.Appl Phys Lett,1997,71(4):464
[18]Zhang W,Inoue A.Thermal and magnetic properties of Fe-CoLn-B(Ln=Nd,Sm,Tb or Dy)amorphous alloys with high magnetostriction.Mater Trans JIM,1999,40(1):78
[19]Zhang T,Inoue A.Bulk glassy alloys in(Fe,Co,Ni)-Si-B system.Mater Trans,2001,42(6):1015
[20]Lin C Y,Tien H Y,Chin T S.Soft magnetic ternary iron-boronbased bulk metallic glasses.Appl Phys Lett,2005,86(16):162501
[21]Shen B L,Akiba M,Inoue A.Excellent soft-ferromagnetic bulk glassy alloys with high saturation magnetization.Appl Phys Lett,2006,88(13):131907
[22]Gao J E,Li H X,Jiao Z B,et al.Effects of nanocrystal formation on the soft magnetic properties of Fe-based bulk metallic glasses.Appl Phys Lett,2011,99(5):052504
[23]O'handley R C,Hasegawa R,Ray R,et al.Ferromagnetic properties of some new metallic glasses.Appl Phys Lett,1976,29(6):330
[24]Inoue A,Shen B L,Chang C T.Fe-and Co-based bulk glassy alloys with ultrahigh strength of over 4000 MPa.Intermetallics,2006,14(8-9):936
[25]Inoue A,Zhang T,Takeuchi A.Bulk amorphous alloys with high mechanical strength and good soft magnetic properties in Fe-TMB(TM=IV-VIII group transition metal)system.Appl Phys Lett,1997,71(4):464
[26]Inoue A,Shen B L,Chang C T.Super-high strength of over4000 MPa for Fe-based bulk glassy alloys in[(Fe1-xCox)0.75B0.2Si0.05]96Nb4system.Acta Mater,2004,52(14):4093
[27]Chang C T,Shen B L,Inoue A.Fe Ni-based bulk glassy alloys with superhigh mechanical strength and excellent soft-magnetic properties.Appl Phys Lett,2006,89(5):051912
[28]Li F S,Shen B L,Makino A,et al.Excellent soft-magnetic properties of(Fe,Co)-Mo-(P,C,B,Si)bulk glassy alloys with ductile deformation behavior.Appl Phys Lett,2007,91(23):234101
[29]Wang J F,Li R,Hua N B,et al.Ternary Fe-P-C bulk metallic glass with good soft-magnetic and mechanical properties.Scripta Mater,2011,65(6):536
[30]Wang J F.Ternary Fe-P-C Bulk Metallic Glass with Good SoftMagnetic and Mechanical Properties[Dissertation].Beijing:Beihang University,2011(王剑锋.Fe-P-C系非晶合金的形成能力及性能研究[学位论文].北京:北京航空航天大学,2011)
[31]Makino A,Kubota T,Chang C T,et al.Fe Si BP bulk metallic glasses with unusual combination of high magnetization and high glass-forming ability.Mater Trans,2007,48(11):3024
[32]Zhang J H,Chang C T,Wang A D,et al.Development of quaternary Fe-based bulk metallic glasses with high saturation magnetization above 1.6 T.J Non-Cryst Solids,2012,358(12-13):1443
[33]Si J J,Mei J N,Wang R S,et al.Fe--B-Si-Zr bulk metallic glasses with ultrahigh compressive strength and excellent soft magnetic properties.Mater Lett,2016,181:282
[34]Liu F J,Yao K F,Ding H Y.Fe-based glassy alloys with high iron content and high saturation magnetization.Intermetallics,2011,19(11):1674
[35]Meng S Y,Ling H B,Li Q,et al.Development of Fe-based bulk metallic glasses with high saturation magnetization.Scripta Mater,2014,81:24
[36]Naoe M,Ogawa Y,Yoshizawa Y.Fe-base Amorphous Alloys Ribbons:China Patent,CN1721563A.2006-1--18(直江昌武,小川雄一,吉泽克仁.铁基非晶态合金带:中国专利,CN1721563A.2006--1-18)
[37]Wang A D,Zhao C L,Men H,et al.Fe-based amorphous alloys for wide ribbon production with high Bsand outstanding amorphous forming ability.J Alloys Compd,2015,630:209
[38]Suzuki K,Kataoka N,Inoue A,et al.High saturation magnetization and soft magnetic properties of bcc Fe--Zr-B alloys with ultrafine grain structure.Mater Trans JIM,1990,31(8):743
[39]Willard M A,Laughlin D E,Mc Henry M E,et al.Structure and magnetic properties of(Fe0.5Co0.5)88Zr7B4Cu1nanocrystalline alloys.J Appl Phys,1998,84(12):6773
[40]Ohta M,Yoshizawa Y.Magnetic properties of nanocrystalline Fe82.65Cu1.35SixB16-xalloys(x=0--7).Appl Phys Lett,2007,91(6):062517
[41]Ohta M,Yoshizawa Y.High Bsnanocrystalline Fe84-x-yCuxNby Si4B12alloys(x=0.0--1.4,y=0.0--2.5).J Magn Magn Mater,2009,321(14):2220
[42]Makino A,Men H,Kubota T,et al.New Fe-metalloids based nanocrystalline alloys with high Bsof 1.9 T and excellent magnetic softness.J Appl Phys,2009,105(7):07A308
[43]Kong F L,Wang A D,Fan X D,et al.High Bs Fe84-xSi4B8P4Cux(x=0-1.5)nanocrystalline alloys with excellent magnetic softness.J Appl Phys,2011,109(7):07A303
[44]Wang A D,Men H,Shen B L,et al.Effect of P on crystallization behavior and soft-magnetic properties of Fe83.3Si4Cu0.7B12-xPx nanocrystalline soft-magnetic alloys.Thin Solid Films,2011,519(23):8283
[45]Kong F L,Chang C T,Inoue A,et al.Fe-based amorphous soft magnetic alloys with high saturation magnetization and good bending ductility.J Alloys Compd,2014,615:163
[46]Sharma P,Zhang X,Zhang Y,et al.Influence of microstructure on soft magnetic properties of low core loss and high BsFe85Si2B8P4Cu1nanocrystalline alloy.J Appl Phys,2014,115(17):17A340
[47]Liu W L,Wang Y G,Chen F G.Investigation of microstructure and magnetic properties of Fe81Si4B12-xP2Cu1Mx(M=Cr,Mn and V;x=0,1,2,3)melt spun ribbons.J Alloys Compd,2015,622:751
[48]Takenaka K,Setyawan A D,Sharma P,et al.Industrialization of nanocrystalline Fe-Si--B--P--Cu alloys for high magnetic flux density cores.J Magn Magn Mater,2016,401:479
[49]Suzuki A,Makino A,Inoue A,et al.Soft magnetic properties of nanocrystalline bcc Fe--Zr--B and Fe--M-B-Cu(M=transition metal)alloys with high saturation magnetization.J Appl Phys,1991,70(10):6232
[50]Ohta M,Yoshizawa Y.Magnetic properties of high-BsFe-CuSi-B nanocrystalline soft magnetic alloys.J Magn Magn Mater,2008,320(20):e750
[51]Urata A,Yamaki M,Takahashi M,et al.Low core loss of non-Si quaternary Fe83.3B8P8Cu0.7nanocrystalline alloy with high Bsof1.7 T.J Appl Phys,2012,111(7):07A335
[52]Li Z Z,Wang A D,Chang C T,et al.Fe Si BPNb Cu alloys with high glass-forming ability and good soft magnetic properties.Intermetallics,2014,54:225
[53]Lopatina E,Soldatov I,Budinsky V,et al.Surface crystallization and magnetic properties of Fe84.3Cu0.7Si4B8P3soft magnetic ribbons.Acta Mater,2015,96:10
[54]Xiang Z,Wang A D,Zhao C L,et al.Optimization of thermal stability and soft-magnetic properties of Fe Si BPCu Nb alloys by Nb content tuning.J Alloys Compd,2015,622:1000
[55]Jafari S,Beitollahi A,Yekta B E,et al.Three-dimensional atom probe analysis and magnetic properties of Fe85Cu1Si2B8P4melt spun ribbons.J Magn Magn Mater,2016,401:1123
[56]Han Y,Inoue A,Kong F L,et al.Softening and good ductility for nanocrystal-dispersed amorphous Fe--Co-B alloys with high saturation magnetization above 1.7 T.J Alloys Compd,2016,657:237
[57]Li X L,Liu J B,Qu C R,et al.Effects of Nb on the precipitation ofα-Fe,glass forming ability and magnetic properties of Fe85B10P5alloys.J Alloys Compd,2017,694:643
[58]Xia G T,Wang Y G,Dai J,et al.Effects of Cu cluster evolution on soft magnetic properties of Fe83B10C6Cu1metallic glass in twostep annealing.J Alloys Compd,2017,690:281