Corrosion Protection of Materials

Modification of Black Chromium Coatings for Improved Corrosion Protection

Anastasiia Shcholokova1, Nadiia Kanunnikova1, Viktoriia Shtefan1,2

1. National technical university ‘Kharkiv polytechnic institute”, Ukraine
2. Leibniz Institute for Solid State and Materials Research, Germany

https://doi.org/10.15407/msse2025.01.158

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Keywords

black chromium, electrodeposition, composite coatings

Abstract

Black chromium coatings were electrodeposited onto AISI 304 stainless steel using electrolytes with varying concentrations of Al(NO3)3. SEM, EDX, EIS, and LVA revealed that the additive improves coating morphology, enhances corrosion resistance, and may lead to bilayer formation. The most favourable results were obtained at 0.05 mol/L Al(NO3)3.

References

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