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Compositionally Complex Refractory Metal Nitride Coatings: The Effects of V, Nb and Ta on their Structure and Mechanical Properties
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Characterization and Effects of Anodized Aluminum Oxide Film on Additively Manufactured AlSi10Mg Alloy
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p.51

Characterization and Effects of Anodized Aluminum Oxide Film on Additively Manufactured AlSi10Mg Alloy

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Abstract:

This work investigates the effect of anodized aluminum oxide films on the surface characteristics and corrosion behavior of AlSi10Mg alloy fabricated via laser powder bed fusion (PBF-LB). A ∼10 μm thick oxide layer was formed using sulfuric acid anodizing, under both as-built and stress-relieved (300 °C, 2 h) conditions. Surface morphology, microstructure, and corrosion performance were characterized using scanning electron microscopy, EDS, and immersion testing in 3.5% NaCl solution. Anodizing significantly reduced surface roughness (Ra) from ~14 µm to ~6 µm, with further reduction in extreme topographical features observed in heat-treated samples. Cross-sectional analysis confirmed uniform oxide growth, while immersion tests revealed delayed corrosion onset relative to uncoated material. However, localized pitting was still observed, particularly in heat-treated samples, likely due to Si-network fragmentation. These findings demonstrate that anodizing enhances surface finish and corrosion resistance of AM AlSi10Mg, while microstructural features, such as silicon morphology, remain critical to oxide layer integrity.

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Periodical:

Solid State Phenomena (Volume 384)

Pages:

9-15

DOI:

https://doi.org/10.4028/p-VJTkS9

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Online since:

January 2026

Authors:

Matias Jaskari*, Ahmed Abdelghany, Timo Rautio, Tun Tun Nyo, Antti Järvenpää, Atef Saad Hamada

Keywords:

Additively Manufactured AlSi10Mg Alloy, Anodized Oxide Film, Corrosion Resistance, Surface Roughness

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© 2026 Trans Tech Publications Ltd. All Rights Reserved

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References

[1] M. Jaskari, A. Hamada, T. Allam, K. Dzieciol, S. Ghosh, R. Schwaiger, P. Karjalainen, A. Järvenpää, Effects of volumetric energy density on defect structure and fatigue behaviour of powder bed fusion manufactured 316L stainless steel, Materials Science and Engineering: A 925 (2025) 147868.

DOI: 10.1016/J.MSEA.2025.147868

Google Scholar

[2] T. Rautio, A. Hamada, J. Kumpula, A. Järvenpää, T. Allam, Enhancement of electrical conductivity and corrosion resistance by silver shell-copper core coating of additively manufactured AlSi10Mg alloy, Surf Coat Technol 403 (2020) 126426.

DOI: 10.1016/J.SURFCOAT.2020.126426

Google Scholar

[3] T. Rautio, H. Torbati-Sarraf, T. Allam, A. Järvenpää, A. Hamada, Enhancement of electrical conductivity and corrosion resistance by gold-nickel coating of additively manufactured AlSi10Mg alloy, Journal of Materials Research and Technology 17 (2022) 521–536.

DOI: 10.1016/J.JMRT.2022.01.022

Google Scholar

[4] Y. Huang, Y.T. Tan, Two-Step Post-processing Treatment to Improve Additive Manufactured AlSi10Mg Surface Finish, in: Springer, Singapore, 2024: p.391–398.

DOI: 10.1007/978-981-99-8643-9_45

Google Scholar

[5] F. Careri, A. Sergi, P. Shashkov, R.H.U. Khan, M.M. Attallah, Plasma electrolytic oxidation (PEO) as surface treatment for high strength Al alloys produced by L-PBF: Microstructure, performance, and effect of substrate surface roughness, Surf Coat Technol 489 (2024) 131122.

DOI: 10.1016/J.SURFCOAT.2024.131122

Google Scholar

[6] T. Rubben, R.I. Revilla, I. De Graeve, Effect of Heat Treatments on the Anodizing Behavior of Additive Manufactured AlSi10Mg, J Electrochem Soc 166 (2019) C42–C48.

DOI: 10.1149/2.0371902jes

Google Scholar

[7] P. Chandramohan, R. Raghu, K. Dharmaseelan, S. Harinadh, Influence of heat treatment and anodizing on the corrosion behaviour of additive manufactured AlSi10Mg alloy, Bulletin of Materials Science 47 (2024) 1–8.

DOI: 10.1007/s12034-024-03223-2

Google Scholar

[8] X. Ming, D. Song, A. Yu, H. Tan, Q. Zhang, Z. Zhang, J. Chen, X. Lin, Effect of heat treatment on microstructure, mechanical and thermal properties of selective laser melted AlSi7Mg alloy, J Alloys Compd 945 (2023) 169278.

DOI: 10.1016/J.JALLCOM.2023.169278

Google Scholar

[9] N.T. Aboulkhair, N.M. Everitt, I. Ashcroft, C. Tuck, Reducing porosity in AlSi10Mg parts processed by selective laser melting, Addit Manuf 1–4 (2014) 77–86.

DOI: 10.1016/J.ADDMA.2014.08.001

Google Scholar

[10] J.W. Walton, J.H. Dwyer, L. Rice, Z. Rueger, G.M. Swain, The Effect of Sulfuric Acid Anodization on the Electrochemical Properties of Aluminum Alloy AlSi10Mg Prepared by Selective Laser Melting, J Electrochem Soc 171 (2024) 051503.

DOI: 10.1149/1945-7111/AD45C5

Google Scholar

[11] R.I. Revilla, H. Terryn, I. De Graeve, Role of Si in the Anodizing Behavior of Al-Si Alloys: Additive Manufactured and Cast Al-Si10-Mg, J Electrochem Soc 165 (2018) C532–C541.

DOI: 10.1149/2.1301809jes

Google Scholar

[12] P.K. Shaw, S. Dwivedi, P. Gautam, A.R. Dixit, A. Pramanik, Effect of Heat Treatment on Surface Integrity and Tribological Properties of LPBF Printed AlSi10Mg, in: 2024: p.67–77.

DOI: 10.1007/978-3-031-65656-9_7

Google Scholar