Title : TRIBO-CORROSION ANALYSIS OF COMPOSITE COATING FOR MECHANICAL APPLICATIONS
Abstract:
Steels are the most widely used material in all industries that undergoes wear and corrosion. Further, rusting of material has caused many adverse effects and even fatal in some cases leading to machine failure and breakage. Therefore, it is necessary to reduce the corrosion and wear of steel that are widely used in industries. Hence, in this study, hexagonal Boron Nitride (hBN) was used as an additive material that is blended in phenolic paint i.e., widely available in market. The hBN was ball-milled to activate their surface energy and characterized using XRD, SEM and FTIR followed by dispersion in paint using ultrasonication. The developed nanopaint was coated over a standard mild steel panel and pin for corrosion and wear tests using pin-on-disc (PoD) tribometer and Electrochemical impedance spectroscopy (EIS), respectively. The EIS results reveal that higher concentration (above 0.5wt%) of nano additives increases the corrosion. It might be due to conduction of a large amount of particle distribution in a paint. Whereas lowering the additive amount to 0.5wt% increases the corrosion resistance. Furthermore, the PoD test was performed for the best and poor samples for corrosion resistance. The result reveals that the higher concentration of additive in paint shows better than lower concentrated additive paint.
Keywords: Coating, Milled hexagonal-Boron Nitride, Paints, Mild steel protection.
What will audience learn from your presentation?
- Method to reduce the corrosion and wear of steel that are widely used materials in machinery.
- Method to develop the stable nanocomposite paint for coating.
- Necessity of ball milling of powder.
- Necessity of characterization methods.
