Abstract
The present study compares the corrosion behavior of Al-Sn, Al-Si and Al-Sn-Si alloys processed by spray forming with that of the conventional chill cast ones in aqueous 0.1 N NaCl solution. Spray forming resulted in finer microstructural features with uniform distribution of second-phase particles. The spray formed Al-Si samples showed improved corrosion resistance as compared to the chill cast ones. The Sn containing alloys showed inferior corrosion resistance in the neutral electrolyte. The addition of 12.5 wt.% Si to Al-Sn alloys improves the corrosion resistance.
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The authors gratefully acknowledge the assistance from E.R. Tagore (IIT Kanpur) with the electrochemical characterization experiments.
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Anil, M., Balaji, S., Upadhyaya, A. et al. Potentiodynamic Polarization Aspects of the As-cast and Sprayed Al-Si, Al-Sn and Al-Sn-Si Alloys in a Sodium Chloride Solution. J. of Materi Eng and Perform 19, 1357–1361 (2010). https://doi.org/10.1007/s11665-010-9629-x
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DOI: https://doi.org/10.1007/s11665-010-9629-x