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Fe王 煜1,郭世海1,张羊换1,2,祁 焱1,全白云1,王新林1(1., 100081;2., 014010) :FeCoSiBFe、Co。,Si、B,FeCo3～4,Bs,1.76T。:;;;Fe:TG139.8 :A :1005-8192(2006)04-0008-03StudyontheIron-richAmorphousAlloyswithHighSaturationMagneticInductionWANGYu1,GUOShi-hai1,ZHANGYang-huan1,2,QiYan1,QUANBai-yun1,WANGXin-lin1(1.FunctionalMaterialsResearchInstitute,CentralIronandSteelResearchInstitute,Beijing100081,China)(2.SchoolofMaterial,InnerMongoliaUniversityofScienceandTechnology,Baotou014010,China)ABSTRACT:TheeffectofthecontentsofFeandCoonthesaturationinductionofFeCoSiBamorphousalloyswasinvesti-gated.Theresultsshowthattheamorphousalloysexhibitthehighsaturationmagneticinduction(Bs)whentherationofFeandCocontentisequalto3～4atacertaincontentofSiandB.ThecompositionoftheamorphousalloywithBs=1.76Twasobtained.KEYWORDS:amorphousalloy;saturationmagneticinduction;softmagneticmaterial;Fe-basedalloy:,,,1 ,。、。,,,,、。,(Bs)2.03T,Hc,〔1,2〕。、、(1/3～1/5)、、,。,、,。(0.10mm),,、、、。,FeSiBCoBs〔3,4〕,Co。FeCoSiBFe、Co,,。13 420068 MetallicFunctionalMaterials Vol.13, No.4August, 20062 FeCoSiB,1。99.5%Fe、Co、Si。,,30m/s,0.03mm。D/max/2400X。Perkin-ElmerDSC-7DSC,。LDJ-9500。3 3.1 Bs1。,Fe,Bs1.5T。Bs,。,Si、B,FeCox=3～4,Bs,1。FeSiBNb、Mo、Ni、CrBs,,CoBs。FeCo,Bs。1 FeTable1 Thesaturationmagneticinductionofiron-richamorphousalloyswithdifferentcompositions/%()FeCoSiBBs/TFe/Cox17275161.5110.28269105161.556.90367125161.535.58464155161.574.27561185161.613.39659205161.702.95757225161.502.59867181141.693.72965201141.663.251062231141.642.691159261141.632.271269181121.763.831370181111.533.891 Si、B,BsFe、CoxFig.1 Bsasafunctionofx(therationofFeandCocontent)atacertaincontentofSiandB3.2 Fe69Co18Si11B121,Fe69Co18Si1B12Bs,1.76T,。,。2Fe69Co18Si1B12X。2a),XRD,。2b)390℃1h,XRD,XRD,α-Fe。2 Fe69Co18Si1B12XFig.2 X-raydiffractionpatternsofFe69Co18Si1B12alloybeforeandafterheattreatment3Fe69Co18Si1B12DSC。Fe69Co18Si1B12,(Tg)(Tx)314.4℃361.6℃,(ΔTx)47.2℃,,。94 :Fe3 Fe69Co18Si1B12DSCFig.3 DSCcurveofFe69Co18Si1B12amorphousalloy4 (1)FeCoSiBBs,Si、B,FeCo3～4,Bs。(2)Fe69Co18Si1B12,Bs1.76T。:〔1〕.[J].,2000,8(5):1～7.〔2〕.,,1990.〔3〕.[J].,2003,10(2):13～18.〔4〕O'handleyRC,HasegawaR,etal.[J].JApplPhys,1976,29(6):330～332.:2006-05-292605SA1,1.56T。。,2605HB1,170mm、25μm,。t/mmBs/THc/A·m-1[50Hz,1.3T]P/W·kg-1[50Hz,1.4T]P/W·kg-1λs(10-6)ρ/μΨ·m2605HB10.0251.641.50.0630.072+271.32605SA10.0251.561.70.0700.080+271.30.232.0360.440.51-10.5 2605HB12605SA1,(B),,,。,2605HB12605SA1(75mm,70mm,5mm),2605HB1B2605SA1B,2605SA1。2605HB1,SA1,。“2605HB1”,,,。(《工业材料》,2006,54(2):58)10 2006