The effect of heat treatment temperature on the structure and barrier performance of a zirconia coating electrodeposited by pulse current
Source abstract
Abstract
Abstract Zirconia coatings were prepared by heat-treating the electrodeposited zirconium hydroxide produced by pulse current on 316L stainless steel. The results showed that a coating with amorphous structure obtained after heat treating at 200 °C, reveals no corrosion barrier performance. Heat treating at 400 °C resulted in zirconia coating with nanocrystalline/amorphous structure, which reveals a strong corrosion barrier performance. This coating shows a high value of pore resistance and Warburg behaviour in electrochemical impedance spectroscopy. As the temperature was raised to 600 °C, an entirely nanocrystalline structure was found. However, this coating revealed muddy shape cracks, with inferior corrosion barrier performance.
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Research context
OpenAlex topics: Corrosion Behavior and Inhibition · Electrodeposition and Electroless Coatings · Hydrogen embrittlement and corrosion behaviors in metals
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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