Hydrothermal and cerium salt sealing of a 6061 aluminum alloy
-
Lihua Gong
Lihua Gong is a professor, engaged in research and teaching in the field of corrosion and protection of metal materials in the School of Materials Science and Engineering, Jiangsu University of Science and Technology.
Tiannan Liu is a graduate student of Jiangsu University of Science and Technology who studies the structure/property relationships and the theory of electrochemical corrosion of metal materials.
Weimin Guo, the corresponding author, is a professor of engineering, engaged in marine corrosion and protection engineering.
Abstract
The influences of the environmentally friendly sealing processes of cerium salt sealing and hydrothermal sealing on the electrochemical behavior of the anodic oxide film of an aluminum alloy were examined by accelerated corrosion of dry-wet alternate immersion corrosion tests, combined with the morphologies observation, chemical composition tests, and electrochemical tests. A severe corrosion environment with high temperature, high humidity, and high salt spray was adopted. The results of electrochemical characteristics show that cerium salt sealing affected the inner barrier layer of the film instead of the outer porous film. The higher impedance of the inner barrier layer is related to the reaction between cerium ions and cathodic reaction products of hydroxyl ions. Hydrothermal sealing, although had some good influence on both the porous layer and the barrier layer of the oxide film, corrosion inhibition on the whole cannot do better than that of cerium salt sealing in the early days. However, as the corrosion time went on, the hydrothermal sealing sample showed better durability.
Funding source: Research Fund of State Key Laboratory for Marine Corrosion and Protection of Luoyang Ship Material Research Institute
Award Identifier / Grant number: KF190409
About the authors
Lihua Gong is a professor, engaged in research and teaching in the field of corrosion and protection of metal materials in the School of Materials Science and Engineering, Jiangsu University of Science and Technology.
Tiannan Liu is a graduate student of Jiangsu University of Science and Technology who studies the structure/property relationships and the theory of electrochemical corrosion of metal materials.
Weimin Guo, the corresponding author, is a professor of engineering, engaged in marine corrosion and protection engineering.
-
Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
-
Research funding: This investigation was financially supported by the Research Fund of State Key Laboratory for Marine Corrosion and Protection of Luoyang Ship Material Research Institute (LSMRI) under the contract No. KF190409.
-
Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
References
[1] V. Raj and M. Mumjitha, “Comparative study of formation and corrosion performance of porous alumina and ceramic nanorods formed in different electrolytes by anodization,” Mater. Sci. Eng. B, vol. 179, pp. 25–35, 2014, https://doi.org/10.1016/j.mseb.2013.10.001.Search in Google Scholar
[2] S. Cui, C. Q. An, and J. J. Hao, “Research progress in chromium-free passivaton of aluminium and aluminium alloy,” Surf. Technol., vol. 45, no. 6, pp. 63–69, 2016, https://doi.org/10.16490/j.cnki.issn.1001-3660.2016.06.010.Search in Google Scholar
[3] Ç. İlhan and R. Gürbüz, “Effects of chromic acid anodizing on fatigue behavior of 7050 T7451 aluminum alloy,” Mater. Test., vol. 63, no. 9, pp. 805–810, 2021, https://doi.org/10.1515/mt-2021-0003.Search in Google Scholar
[4] A. Yabuki, Y. Nagayama, and I. W. Fathona, “Porous anodic oxide film with self-healing ability for corrosion protection of aluminum,” Electrochim. Acta, vol. 296, pp. 662–668, 2019, https://doi.org/10.1016/j.electacta.2018.11.119.Search in Google Scholar
[5] R. Elaish, M. Curioni, K. Gowers, et al.., “Effect of fluorozirconic acid on anodizing of aluminium and AA 2024-T3 alloy in sulphuric and tartaric-sulphuric acids,” Surf. Coating. Technol., vol. 342, 2018, pp. 233–243, https://doi.org/10.1016/j.surfcoat.2018.02.096.Search in Google Scholar
[6] P. Zhang and Y. Zuo, “Effects of pore parameters on performance of anodic film on 2024 aluminum alloy,” Mater. Chem. Phys., vol. 231, pp. 9–20, 2019, https://doi.org/10.1016/j.matchemphys.2019.04.008.Search in Google Scholar
[7] D. Elabar, G. R. La Monica, M. Santamaria, F. Di Quarto, P. Skeldon, and G. E. Thompson, “Anodizing of aluminium and AA 2024-T3 alloy in chromic acid: effects of sulphate on film growth,” Surf. Coat. Technol., vol. 309, pp. 480–489, 2017, https://doi.org/10.1016/j.surfcoat.2016.11.108.Search in Google Scholar
[8] N. P. Hu, X. C. Dong, X. Y. He, J. F. Browning, and D. W. Schaefer, “Effect of sealing on the morphology of anodized aluminum oxide,” Corros. Sci., vol. 97, pp. 17–24, 2015, https://doi.org/10.1016/j.corsci.2015.03.021.Search in Google Scholar
[9] J. Liu, L. H. Gong, and F. Pan, “Study of anodic oxidation process of 6061 aluminum alloy with tartaric acid and sulfuric acid,” Mater. Prot., vol. 54, no. 3, pp. 94–99, 2021, https://doi.org/10.16577/j.cnki.42-1215/tb.2021.03.016.Search in Google Scholar
[10] J. H. Lee, Y. H. Kim, H. U. Jang, and W. S. Chung, “Cr2O3 sealing of anodized aluminum alloy by heat treatment,” Surf. Coat. Technol., vol. 243, pp. 34–38, 2014, https://doi.org/10.1016/j.surfcoat.2012.05.071.Search in Google Scholar
[11] R. X. Wang, L. S. Wang, C. Y. He, M. Lu, and L. Sun, “Studies on the sealing processes of corrosion resistant coatings formed on 2024 aluminium alloy with tartaric-sulfuric anodizing,” Surf. Coat. Technol., vol. 360, pp. 369–375, 2019, https://doi.org/10.1016/j.surfcoat.2018.12.092.Search in Google Scholar
[12] J. H. Lee, D. H. Kim, C. H. Choi, and W. S. Chung, “Nanoporous anodic alumina oxide layer and its sealing for the enhancement of radiative heat dissipation of aluminum alloy,” Nano Energy, vol. 31, pp. 504–513, 2017, https://doi.org/10.1016/j.nanoen.2016.12.007.Search in Google Scholar
[13] M. F. Khan, A. M. Kumar, A. Ul-Hamid, and L. M. Al-Hems, “Achieving non-adsorptive anodized film on Al-2024 alloy: surface and electrochemical corrosion investigation,” Surface. Interfac., vol. 15, pp. 78–88, 2019, https://doi.org/10.1016/j.surfin.2019.02.005.Search in Google Scholar
[14] L. M. Xu, X. Wang, L. Lei, and K. Zuo, “Densification process of cerium-based conversion coatings on AZ31 magnesium alloy,” Chin. J. Nonferrous Met., vol. 23, no. 11, pp. 3135–3140, 2013, https://doi.org/10.19476/j.ysxb.1004.0609.2013.11.016.Search in Google Scholar
[15] B. S. Gu and P. Y. Yang, “Electrode reaction mechanism of conversion coating forming process of B95 aluminium alloy in cerium(III) salt solution,” Chin. J. Nonferrous Met., vol. 23, no. 12, pp. 3387–3393, 2013, https://doi.org/10.19476/j.ysxb.1004.0609.2013.12.018.Search in Google Scholar
[16] M. Saeedikhani, M. Javidi, and S. Vafakhah, “Anodising of 2024-T3 aluminium alloy in electrolyte of sulphuric-boric-phosphoric mixed acid containing cerium salt as corrosion inhibitor,” Trans. Nonferrous Metals Soc. China, vol. 27, pp. 711–721, 2017, https://doi.org/10.1016/S1003-6326(17)60079-7.Search in Google Scholar
© 2022 Walter de Gruyter GmbH, Berlin/Boston
Articles in the same Issue
- Frontmatter
- Hydrothermal and cerium salt sealing of a 6061 aluminum alloy
- Effect of rotational speed on the microstructure and mechanical properties of rotary friction welded AISI 1018/AISI 1020 asymmetrical joints
- Multiaxial fatigue behavior of a 2198-T8 Al–Li alloy under proportional and nonproportional loading
- Transferability of ANN-generated parameter sets from welding tracks to 3D-geometries in Directed Energy Deposition
- Measurement of the deformation and strain of AZ31B magnesium alloy under quasi-static complex loading
- Mechanical performance and weldability of HARDOX 450/AISI 430 grade joined by TIG double-sided arc welding
- Load-carrying capacity of hot-pressed thermoplastic composite joints
- Minimization of release bearing load loss in a clutch system for high-speed rotations using the differential evolution algorithm
- Effect of heat treatment on the properties of plasma arc welded TRIP800 steel
- Microstructure of a chrome-boriding of induction hardened DIN Ck 45 steel
- Effects of raster angle in single- and multi-oriented layers for the production of polyetherimide (PEI/ULTEM 1010) parts with fused deposition modelling
- Mechanical properties of quenched and tempered steel welds
- Effect of cross-head speed on mechanical properties of photosensitive resins used in three-dimensional printing of a stereolithographic elastomer
- Optimization of spur gear pairs for aerospace applications
Articles in the same Issue
- Frontmatter
- Hydrothermal and cerium salt sealing of a 6061 aluminum alloy
- Effect of rotational speed on the microstructure and mechanical properties of rotary friction welded AISI 1018/AISI 1020 asymmetrical joints
- Multiaxial fatigue behavior of a 2198-T8 Al–Li alloy under proportional and nonproportional loading
- Transferability of ANN-generated parameter sets from welding tracks to 3D-geometries in Directed Energy Deposition
- Measurement of the deformation and strain of AZ31B magnesium alloy under quasi-static complex loading
- Mechanical performance and weldability of HARDOX 450/AISI 430 grade joined by TIG double-sided arc welding
- Load-carrying capacity of hot-pressed thermoplastic composite joints
- Minimization of release bearing load loss in a clutch system for high-speed rotations using the differential evolution algorithm
- Effect of heat treatment on the properties of plasma arc welded TRIP800 steel
- Microstructure of a chrome-boriding of induction hardened DIN Ck 45 steel
- Effects of raster angle in single- and multi-oriented layers for the production of polyetherimide (PEI/ULTEM 1010) parts with fused deposition modelling
- Mechanical properties of quenched and tempered steel welds
- Effect of cross-head speed on mechanical properties of photosensitive resins used in three-dimensional printing of a stereolithographic elastomer
- Optimization of spur gear pairs for aerospace applications
