I performed potentiodynamic polarization testing of steel using a Gamry potentiostat to evaluate corrosion behavior under controlled electrochemical conditions. By sweeping the applied potential and recording the current response, I determined corrosion potential and corrosion current density, enabling quantitative comparison of corrosion resistance and assessment of passivation behavior.

Image: Polarization curve for a steel sheet taken at 0.167 mV/s sampling rate using Ag/AgCl 3M Saturated NaCl reference electrode

I used electrochemical testing to compare corrosion resistance of equiatomic and non-equiatomic alloys in both thin-film and bulk form. Repeat testing ensured reproducibility and statistical reliability. Post-corrosion surface analysis supported interpretation of corrosion mechanisms. 

Image: Corrosion comparison between two high entropy alloys