The influence of rare-earth metals on glass-forming ability and crystallization of CoFeSiBNb amorphous alloys

In present work amorphous alloys Co 48 Fe 25 Si 4 B 19 Nb -R (R = Nd, Sm, Tb, Yb) were obtained by planar flow casting in the form of ribbons with 3-5 mm wide and 35-45μm thickness. It was found that crystallization process goes into two stages depends on used rare-earth addition its content alloy differential thermal analysis method. Glass-forming ability criteria calculated. is shown paramagnetic Curie temperature liquid state can be as their a-priori criterion glass-forming ability. Keywords: alloys, crystallization, ability, analysis, x-ray diffraction, metals.\