The Effect of the Jetting Temperature on the Fabrications of Rapidly Solidified Fe-Si-B Systems Alloys Using Single Roller Melt Spinning

Abstract

The effects of the jetting temperature of the melting alloy on the ribbon thickness of rapidly solidified The results demonstrate that the viscosity of liquid Fe Si B systems alloys influences the ribbon thickness. Moreover, when the contact conditions between the rotating roll comes and puddle are good, then the ribbon thickness decreases.

Effects of Annealing on the Structure and Magnetic Properties of Fe80B20 Magnetostrictive Fibers

“…The activation energy of fibers is calculated based on three values of T P , which are obtained at the heating rate of 10, 30 and 60 o C/min, respectively. Based on the Kissinger formula, the activation energy is obtained as 221 kJ/mol, which is close to the value for Fe 75 Si 10 B 15 amorphous ribbons (21).…”

“…The activation energy of fibers is calculated based on three values of T P , which are obtained at the heating rate of 10, 30 and 60 o C/min, respectively. Based on the Kissinger formula, the activation energy is obtained as 221 kJ/mol, which is close to the value for Fe 75 Si 10 B 15 amorphous ribbons (21). Figure 5 shows the hysteresis loops (M-H) of as-spun Fe 80 B 20 amorphous fibers, where II and ⊥ represent the applied field H parallel or perpendicular to the fiber axis, respectively.…”

Influence of annealing treatment on soft magnetic properties of Fe76Si10B10Cr2Y2 amorphous ribbon

“…T p1 was lower than that of Table 1 Atomic radius ratio and binary heats of mixing (kJ/mole) in Fe-Si-B-Cr-Y alloy [12]. Fe 75 Si 10 B 15 , 310.69 kJ/mol [15]; for this reason, the amorphous ribbons were unstable close to T p1 . The alloys would tend to crystalize once overcome the energy barrier.…”

“…The as-cast alloy exhibited the characters of a typical soft magnetic material, including high saturation magnetization (M s ), low coercivity (H c ) and no hysteresis. The M s is 1.25 T and lower than that of Fe 75 Si 10 B 15 , 1.52 T [15]. Because the additive elements were non-magnetic, they would weaken the M s maximum.…”

“…Because the additive elements were non-magnetic, they would weaken the M s maximum. In addition, chromic additives would also reduce the H c of Fe-Si-B alloys [10]; hence, the value decrease from 49.5 A/m [15] to 22.84 A/m.…”