Influence of Surface Pretreatment on the Corrosion Resistance of Cold-Sprayed Nickel Coatings in Acidic Chloride Solution

Journal Article · Sun Apr 15 04:00:00 EDT 2018 · Journal of Materials Engineering and Performance

DOI:https://doi.org/10.1007/S11665-018-3298-6· OSTI ID:22860554

Scendo, Mieczyslaw ^[1]; Zorawski, Wojciech ^[2]; Staszewska-Samson, Katarzyna ^[1]; Makrenek, Medard ^[2]; Goral, Anna ^[3]

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1. Jan Kochanowski University in Kielce, Institute of Chemistry (Poland)
2. University of Technology in Kielce (Poland)
3. Institute of Metallurgy and Materials Science of the Polish Academy of Sciences in Krakow (Poland)

Corrosion resistance of the cold-sprayed nickel coatings deposited on the Ni surface (substrate) without and with abrasive grit-blasting treatment of the substrate was investigated. The corundum powder with different grain sizes was used. The corrosive environment contained an acidic chloride solution. The mechanism of the corrosion of nickel was suggested and discussed. Corrosion electrochemical parameters were determined by electrochemical methods. The corrosion effect of a nickel coating depends on the grain size used to prepare the substrate. The nickel coating after the medium grit-blasting treatment of the substrate was found to be the most corrosion resistant. However, the smallest resistance on the corrosion effect should be attributed to the nickel coating on the substrate after the coarse grit-blasting treatment.

• OSTI ID: 22860554
• Journal Information: Journal of Materials Engineering and Performance, Journal Name: Journal of Materials Engineering and Performance Journal Issue: 4 Vol. 27; ISSN 1059-9495; ISSN JMEPEG
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ABRASIVES
COATINGS
CORROSION
CORROSION RESISTANCE
ELECTROCHEMISTRY
EXPLOSIVE FRACTURING
GRAIN SIZE
NICKEL
POWDERS
SPRAYS
SUBSTRATES