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

Abstract

Fe-Si-B systems amorphous alloys were rapidly solidified from the melt by the single roller method. In this process the alloys were melted in a crucible and the molten alloy is jetted through a small orifice by gas pressure or gravity. The effects of the jetting temperature of the melting alloy on the ribbon thickness of rapidly solidified Fe₇₅Si₁₀B₁₅ and Fe_79.5Si_8.5B₁₂ alloys were examined. The rapidly solidified Fe₇₅Si₁₀B₁₅ and Fe_79.5Si_8.5B₁₂ alloy ribbons’ mean thickness decreased continuously with the increased jetting temperature. However, the temperature dependence of the ribbon thickness in the Fe_79.5Si_8.5B₁₂ alloy was greater than that of the Fe₇₅Si₁₀B₁₅ alloy.
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, the ribbon thickness decreases.