Tribological behavior of the kinetic sprayed Ni59Ti16Zr20Si2Sn3 bulk metallic glass

Gas atomized amorphous Ni59Ti16Zr20Si2Sn3 feedstock particles were fed into warm gas dynamics and they were successfully overlaid onto the mild steel substrate. Through the X-ray diffractometry and differential scanning calorimetry, it could be confirmed that thermally activated processes such as crystallization and in-flight particle oxidation were effectively suppressed during the modified kinetic spraying process. In order to evaluate the tribological behavior of the kinetic sprayed Ni59Ti16Zr20Si2Sn3 BMG coating, a partially crystallized coating and a fully crystallized coating were prepared by isothermal heat treatments.