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Proton exchange membrane fuel cells (PEMFC) attracted significant attention to meet energy demands for future applications. Graphite bipolar plates are currently being used due to its high corrosion resistance and electrical conductivity, but for economic reasons, metallic bipolar plates are being considered as a cost‐effective alternative. However, corrosion poses a serious challenge with the use...
The corrosion behavior of cathodic arc physical vapor deposited CrAlN and TiAlN coatings were examined in 1 M HCl solution before and after vacuum annealing at 700, 800, 900, and 1000 °C. Electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization (PDP) methods were used to study the corrosion behavior and porosity of the coatings in comparison with the bare steel substrate (304SS)...
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