Home Kovove Materialy-Metallic Materials 2018 Metallic Materials Vol. 56 (2018), no. 6, pp.379–387

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Metallic Materials Vol. 56 (2018), no. 6, pp.379–387

Title: The tribocorrosion behavior of Ni-P and Ni-P-ZrO2 coatings
Author: F. Tabatabaei, S. Vardak, S. Alirezaei, K. Raeissi

Abstract: In this research, tribocorrosion behavior of Ni-P-ZrO2 electroless composite coating has been investigated in 3.5 wt.% NaCl solution. The steel samples were deposited by electroless deposition to form Ni-P and Ni-P-ZrO2 coatings. XRD and SEM were used to evaluate the microstructure of the coatings. Also, the corrosion and tribocorrosion behavior of the coatings have been investigated in 5 wt.% NaCl electrolytes. The results showed that the repassivation rate of Ni-P-ZrO2 composite coating was higher than the mechanical depassivation rate. Also, the corrosion resistance of the Ni-P coating was lower than that of Ni-P-ZrO2 composite coating after tribocorrosion. Moreover, the synergistic effects of corrosion and wear at an anodic potential (–100 mVAg/AgCl) indicated that corrosion had more contribution to the weight loss in Ni-P coating rather than that of Ni-P-ZrO2 coating.

Keywords: tribocorrosion, electroless, composite, zirconia, coating
Published online: 03-Dec-2018
Year: 2018, Volume: 56, Issue: 6 Page From: 379, Page To: 387

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