Julian Kubisztal, Jolanta Niedbała
Zn-Ni coatings (c.a. 30 wt.% Ni) were deposited under galvanostatic conditions on a carbon steel substrate (St3S) from an ammonia bath. The corrosion resistance of these coatings was assessed using an accelerated test (NSS – neutral salt spray) in accordance with ISO 9227:2007. To compare the corrosion properties of the as-deposited Zn-Ni coating, Zn-Ni coatings after exposure to the NSS environment, and Zn coating, the potentiodynamic technique, electrochemical impedance spectroscopy (EIS), and scanning Kelvin probe (SKP) methods were employed. The results indicated that both as-deposited and post-NSS test Zn-Ni coatings exhibited superior corrosion resistance in a 5% NaCl solution compared to the Zn coating. It was determined that the inclusion of nickel in the zinc matrix enhances the corrosion properties of the oxide layer that forms on the coating surface. Additionally, the Zn-Ni coating after exposure to the neutral salt spray displayed greater corrosion resistance compared to the as-deposited Zn-Ni coating. This improved corrosion resistance could be attributed to the formation of the Zn5(OH)8Cl2·H2O phase on the coating surface following the salt spray test.
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title={Corrosion resistance of Zi-Ni coatings exposured to neutral salt spray},
author={Julian Kubisztal and Jolanta Niedbała},
year={2010},
language={en}
}TY - JOUR TI - Corrosion resistance of Zi-Ni coatings exposured to neutral salt spray AU - Julian Kubisztal AU - Jolanta Niedbała PY - 2010 LA - en ER -
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