Effect of Nanoparticle Concentration on the Performance of Ni-Co-β-SiC Composite Coatings Electrodeposited on the Surface of Spindle Hook Teeth

This study aimed to improve the surface hardness and wear resistance of spindle hook teeth with special shapes reduce cost replacing on cotton pickers. For this goal, a Ni-Co-β-SiC composite coating different concentrations β-SiC nanoparticles (0, 1, 2, 3, 4 g/L) was electrodeposited teeth. The hardness, elemental composition, micromorphology were characterized by microhardness tests, an energy spectrum analyzer, scanning electron microscope after cutting spindles. actual process determined simulation scratch effect concentration properties investigated. results show that has typical cellular structure. first increases then decreases, (including friction coefficient, area, shape area) decreases increases, mainly due pinning role agglomeration nanoparticles. When 1 g/L, reached maximum 506.2 HV0.1, coefficient minimum 0.13, area most suitable values. Therefore, had best resistance.