Abstract
In this work, for the first time, passive film formation on two newly developed pseudo high entropy alloys (Fe61Cr11Mo8Nb4B16 and Fe61Cr11Mo8Ni4B16) was deeply investigated by using combined XPS and EIS techniques. Amorphous and crystalized samples (ribbons) were tested in a 0.6 M NaCl solution. The Power Law model was the most appropriate to describe part of the data, and a passive film's physical properties, such as resistivity and capacitance were determined. The XPS analysis revealed that a thin oxide layer covered all samples and that samples’ annealing decreased the amount of protective elements in the oxide layer, depleting corrosion properties.
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