METHOD FOR EVALUATING THE CORROSION RESISTANCE OF A SURFACE

Disclosed is a method for evaluating the corrosion resistance of at least one surface, comprising: *a) carrying out one or more sequences of n cyclical electrochemical test cycles on the surface, where n is an integer higher than or equal to 1, each cycle comprising the following three successive steps: *a first step of measurement, by electrochemical impedance spectroscopy, of one or more electrochemical quantities representative of the corrosion resistance of the surface; *a second step of cathodic polarization carried out at a voltage below −5 V, preferably comprised between −5 V and −10 V, and more preferably comprised between −7 V and −9 V; *a third step of potential relaxation; and*b) carrying out a visual inspection at the end of each cyclical electrochemical test sequence so as to detect a degradation of the surface, and, when the appearance of a degradation of the surface during a sequence is detected by visual inspection, stopping the cyclical electrochemical test cycles at the end of this sequence and *c) evaluating the corrosion resistance of the surface on the basis of the study of the measured electrochemical quantities.