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The experimental research was made on superficial layers laid-down through electrical sparking on the steel carbon OLC 45 probes, the used electrode being made from a corrosion resistant material (Copper). The probes was immersed 285 days in static see water at the environments temperature. The corrosion speed was determined through gravimetrical method; the superficial layers subjected to the corrosive agent were analyzed by optical metallographic and atomic force microscopy.