Corrosion behavior of AA5182 Al–Mg casts in HNO3: A comparative study of thin-strip and direct-chill casting
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.
Authors
- Vahid Fallah (ORCID: https://orcid.org/0000-0002-3290-9118)
- S.Y. Persaud (ORCID: https://orcid.org/0000-0003-0580-0261)
- Kevin Daub (ORCID: https://orcid.org/0009-0008-9006-402X)
- Rouhollah Jalili (ORCID: https://orcid.org/0000-0003-3851-0818)
- Hooman Gholamzadeh (ORCID: https://orcid.org/0000-0001-5273-782X)
- Yoel Emun (ORCID: https://orcid.org/0000-0002-9388-6669)
- Hesam Pouraliakbar (ORCID: https://orcid.org/0000-0003-1184-8245)
- Johan Moverare (ORCID: https://orcid.org/0000-0002-8304-0221)
- Andrew Howells (ORCID: https://orcid.org/0000-0002-2344-4136)
- Mark Gallerneault
- Mohammad Reza Jandaghi
Institutions
- Linköping University (SE)
- Queen's University (CA)
Publication Details
- Journal
- Journal of Materials Research and Technology
- Published
- 2025-12-09
- DOI
- https://doi.org/10.1016/j.jmrt.2025.12.087
- Citations
- 2
- Primary Topic
- Aluminum Alloy Microstructure Properties
- Type
- article
- Field-Weighted Citation Impact
- 9.99