Rouhollah Jalili, Hesam Pouraliakbar, Yoel Emun, Hooman Gholamzadeh, Mohammad Reza Jandaghi, Kevin Daub, Andrew Howells, Mark Gallerneault, Johan Moverare, S.Y. Persaud, Vahid Fallah
This study investigates the corrosion behavior of AA5182 Al–Mg alloy produced by thin-strip (TS) and direct-chill (DC) casting. Through immersion tests, polarization measurements, and electrochemical impedance spectroscopy (EIS), the impact of as-cast microstructure on corrosion resistance in HNO 3 solution was examined. The results show that TS samples with reduced formation of intergranular Mg-rich eutectics, particularly β-Al 3 Mg 2 , exhibit a lower degree of sensitization (DOS), attributed to Mg supersaturation in the matrix due to rapid solidification, and demonstrate superior corrosion resistance.