Abstract In this work were obtained nickel-copper coatings on Zamak by electro- deposition using inverse-pulsed current, direct-pulsed current and direct current techniques, with the purpose of studying the corrosion behavior of each technique in a saline environment (3,5%wt. NaCl). Through the analysis of the Tafel polarization curves it was found that the corrosion rate of the coatings obtained by direct current technique are higher than the corrosion rate of the coatings obtained by inverse-pulsed current technique. The Electrochemical Impedance Spectroscopy (EIS) allowed fnding the electric model of the solution-coating interface. The results showed that pulsed current techniques generate deposits that increase the corrosion resistance of obtained coatings.