Abstract
In the present study, pig iron (alloy I) and its derivative compositions (alloy II and III) were used to form ribbons by melt spinning at different melt spun speeds. Glass forming behavior of the alloys was experimentally validated by characterizing the ribbon samples by X-ray diffraction (XRD), differential scanning calorimetry (DSC), scanning electron microscope (SEM) and transmission electron microscope (TEM). The corrosion behavior of the ribbons was investigated by linear polarization, dynamic polarization and electrochemical impedance spectroscopy (EIS) in 3.5% freely-aerated NaCl solution. Glass forming ability and corrosion resistance of ribbons of alloy I were found to increase with higher melt spun speed, whereas the ribbons made of alloy II and III in general showed comparable glass forming ability and corrosion resistance at all the melt spun speeds. The highest corrosion resistance of the ribbons of the alloy II attributes to the complete amorphous structure as well as Cr2O3 formation.
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