Tribocorrosion and long-term corrosion evolution of HVOF-sprayed WC-Ni and WC-CoCr coatings

Key Points

• Corrosion evolution significantly impacts the integrity of HVOF-sprayed coatings over time.
• Tribocorrosion effects were observed, particularly influencing surface wear in two specific coatings.
• Assessment using tribological testing methods highlighted how WC-Ni and WC-CoCr behave under various conditions.
• Findings suggest the need for ongoing research to enhance coating longevity and performance in industrial applications.