Effect of Ni replacement of Fe on the amorphous formation ability and properties of FeNiSiB
(Fe1-xNix)83Si1B16(x=0,0.1,0.2,0.3,0.4,0.5)amorphous alloy ribbons were prepared and an-nealed using single copper roll dump strip method.X-ray diffractometer(XRD),scanning electron microscope(SEM),differential scanning calorimeter(DSC),vibrating sample magnetometer(VSM),DC/AC magnetisa-tion properties automatic test analyser(BH),Vickers hardness tester,and Instron Mechanical Tester were used to analyze and study the effects of different Fe/Ni ratios on the amorphous formation ability,soft magnetic properties and mechanical properties of FeNiSiB alloy ribbons.properties and mechanical properties of FeNiSiB alloy ribbons.The results show that the FeNiSiB alloy ribbons have a tendency to crystallise and precipitate a-Fe phases with the replacement of Fe by Ni.The first crystallisation temperature Tx1 decreases,and the mechani-cal properties are improved,with the Vickers hardness and tensile strength as high as 770.0 and 2452 MPa,re-spectively.It is found that the soft magnetic properties of the materials are improved by an appropriate Fe/Ni ratio,with samples being annealed at the same time as those with(Fe0.8Ni0.2)83Si1B16 sample has a saturated magnetic induction Bs of 1.62 T after annealing treatment,a coercivityHcof only 0.5 A/m,and an initial per-meability μi of 33 000.
soft magnetic propertiesamorphous formation capabilityFeNiSiB alloyFe/Ni
NETL
NSTL
万方数据
