Abstract
The present work is focused on synthesizing Copper/Silicon Nitride (Si3N4) Nano Surface Composite (NSC) by friction stir processing. All the four copper plates had a groove width of 0.6, 0.9, and 1.2 respectively. A dual-pass FSP was carried out, the rotational speed of the tool is 1400 rpm, an axial force of 10 k N, and a traverse speed of 15 mm min−1. The microstructure and the distribution of silicon nitride nanoparticles were studied using a field emission scanning electron microscope (FESEM). The results indicate that the tensile strength of Cu/Si3N4 NSC increased and they exhibit superior micro hardness, corrosion resistance, and wear resistance compared to pure copper.
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