High-temperature diffusion behavior, wear-resistance and corrosion-resistance properties of Al2O3, MoS2, and ZnO nanoparticles on copper surfaces

With industrial technology advancing, the demand for metallic materials in extreme conditions (high temperature, pressure, corrosion) has been increasing. This study adopted an orthogonal design to investigate AlSO3, MoSS, and ZnO nanoparticle diffusion on copper at 800 degrees C, 900 degrees C and 1000 degrees C. The MFT-3000 multi-functional friction and wear tester was used to evaluate anti-wear performance. Electrochemical tests were conducted to analyze the corrosion resistance. The results show that at 900 degrees C, the ZnO nanoparticles on the copper surface exhibit the best anti-wear performance with a friction coefficient of 0.18, which is 0.54 less than that of the untreated, and show the best corrosion resistance with an inhibition efficiency of 19.5 %. These findings demonstrate that ZnO at 900 degrees C has the optimal performance on the copper surface, highlighting its great significance for metal surface modification in extreme environments.