International Journal of Materials Engineering and Technology
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Abstract: Corrosion
resistance of glassy (at %) alloy in HCl solutions was
investigated by electrochemical and surface analyses methods. The alloy corroded
under charge transfer control in all HCl concentrations and spontaneously
passivated by anodic polarization. The high corrosion resistance of the glassy
alloy was due to the formation of chromium-enriched passive film. The molybdenum
assists the formation of the passive film but dose not constitute it. The alloy
resistivity and both tendency and degree of passivation decrease with the increase. Thermodynamic parameters
such as and from experimental data of the
temperature studies of corrosion process at four temperatures ranging from 20 to
60°C at constant concentration HCl were determined and discussed.
Keywords and phrases: metallic glasses, role of element, spontaneous passivation, polarization, EIS, XPS.
