Photo from wikipedia
Abstract Nickel aluminides are ideal materials for protective coatings because they possess high-temperature oxidation resistance and low corrosion rates in marine atmospheres. In this work, a double layered coating was… Click to show full abstract
Abstract Nickel aluminides are ideal materials for protective coatings because they possess high-temperature oxidation resistance and low corrosion rates in marine atmospheres. In this work, a double layered coating was formed by the electrochemical deposition of an initial Ni layer followed by an Al top layer deposited by pack cementation. The coatings were found to contain several Ni-Al on the upper areas and Ni-Fe phases on the substrate/coating interface, as a result of Ni diffusion during the aluminization step. Thermogravimetric high temperature oxidation tests and electrochemical corrosion measurements revealed significant increase of the samples’ resistance, compared to the uncoated steel.
Journal Title: Corrosion Science
Year Published: 2019
Link to full text (if available)
Share on Social Media: Sign Up to like & get
recommendations!