Investigation of the effect of turbulent friction process parameters on the surface mechanical properties of AZ31B/CNT nanocomposite using Sobel sensitivity analysis

The perturbation friction process is a solid state method used to modify the surface, improve mechanical properties, and produce composites. In this research, the effect of effective parameters on the surface compositing of AZ31B / CNT alloy with carbon nanotubes has been investigated by the turbulent friction process method and by the Sobel sensitivity analysis method. Input parameters in this study were advance speed, rotation speed, weight percentage of carbon nanotubes and number of welding passes. Also considered outputs included hardness and weight loss. In order to analyze the results, Sobel sensitivity analysis has been used to investigate the qualitative and quantitative effect of inputs on outputs. The results of this study showed that the weight percentage of carbon nanotubes, rotation speed, number of welding passes and advancing speed affect hardness, respectively. Also, the weight percentage of carbon nanotubes, the number of welding passes, the rotation speed and the advancing speed affect the weight loss.