Selected Properties of the Micro Electrical Discharge Alloying Process Using Copper Electrode on Aluminum

The paper presents a study of surface layers produced by electro-spark deposition (ESD) using copper electrode on the aluminum. The layers were investigated with metallographic methods. Microscopic examination was carried out to examine the structure of formed layers. Image analysis methods were used to observe the cross-section of the layer. For diffusion observations, ESD analyzes were performed on the cross-section of the produced layer. Scanning electron microscope (SEM) and energy-dispersive X-ray spectroscopy (EDX) analysis was conducted to characterize the microstructure and composition of the coating. Also the tribological tests were made on the T-01 M type Ball-on-Disk testing machine. The research carried out for a sliding distance of 1000 m with load 10 N. The results of investigations showed that there is a possibility of obtaining the satisfying quality superficial layer on the aluminum using copper electrode.