Corrosion inhibition of AlSi10Mg additively manufactured parts in 3.5% NaCl solution

Year 2024, Volume: 5 Issue: 1, 9 - 14, 30.06.2024

Burçin Özbay Kısasöz

Abstract

In this study, corrosion inhibition of the additively manufactured AlSi10Mg was investigated in 3.5% NaCl solution with the addition of 1% and 3% NH4NO3. The potentiodynamic polarization and electrochemical impedance spectroscopy tests were performed in order to reveal the corrosion behavior of the AlSi10Mg. The corrosion inhibition behavior of the AlSi10Mg was determined by analyzing the Tafel curves, phase angle/frequency curves and equivalent circuit results. Moreover, microstructures of the produced sample and corroded surfaces were investigated with light metal microscopy. It was stated that the corrosion rate value of the AlSi10Mg is reduced with the presence of NO3- in 3.5% NaCl solution. On the other hand, the surface/solution interaction was reduced by adding NH4NO3 into 3.5% NaCl solution. It can be clearly emphasized that using 3% NH4NO3 is quite effective in improving the corrosion behavior of AlSi10Mg in 3.5% NaCl.

Keywords

AlSi10Mg, corrosion, laser powder bed fusion (LPBF), inhibition.

References

• References
• [1] Cabrini, M., Lorenzi, S., Pastore, T., Testa, C., Manfredi, D., Cattano, G., & Calignano, F. (2018). Corrosion resistance in chloride solution of the AlSi10Mg alloy obtained by means of LPBF. Surface and Interface Analysis, 51(12), 11591164. [CrossRef]
• [2] Frazier, W. E. (2014). Metal additive manufacturing: A review. Journal of Materials Engineering and Performance, 23(6), 19171928. [CrossRef]
• [3] Louvis, E., Fox, P., & Sutcliffe, C. J. (2011). Selective laser melting of aluminium components. Journal of Materials Processing Technology, 211(2), 275284. [CrossRef]
• [4] Cabrini, M., Calignano, F., Fino, P., Lorenzi, S., Lorusso, M., Manfredi, D., Testa, C., & Pastore, T. (2018). Corrosion behavior of heat-treated AlSi10Mg manufactured by laser powder bed fusion. Materials, 11(7), Article 1051. [CrossRef]
• [5] Leon, A., & Aghion, E. (2017). Effect of surface roughness on corrosion fatigue performance of AlSi10Mg alloy produced by Selective Laser Melting (SLM). Materials Characterization, 131, 188194. [CrossRef]
• [6] Wu, J., Wang, X. Q., Wang, W., Attallah, M. M., & Loretto, M. H. (2016). Microstructure and strength of selectively laser melted AlSi10Mg. Acta Materialia, 117, 311320. [CrossRef]
• [7] Neuser, M., Grydin, O., Frolov, Y., & Schaper, M. (2022). Influence of solidification rates and heat treatment on the mechanical performance and joinability of the cast aluminum alloy AlSi10Mg. Production Process, 16, 193202. [CrossRef]
• [8] Manfredi, D., Calignano, F., Manickavasagam, K., Canali, R., Ambrosio, E. aP., & Atzeni, E. (2013). From powders to dense metal parts: Characterization of a commercial AlSiMg alloy processed through direct metal laser sintering. Materials, 6, 856–869. [CrossRef]
• [9] Olakanmi, E. O. (2013). Selective laser sintering/melting (SLS/SLM) of pure Al, Al–Mg, and Al–Si powders: Effect of processing conditions and powder properties. Journal of Materials Processing Technology, 213, 1387–1415. [CrossRef]
• [10] Read, N., Wang, W., Essa, K., & Attallah, M. M. (2015). Selective laser melting of AlSi10Mg alloy: Process optimisation and mechanical properties development. Materials & Design, 65, 417424. [CrossRef]
• [11] Leon, A., Shirizly, A., & Aghion, E. (2016). Corrosion behavior of AlSi10Mg alloy produced by additive manufacturing (AM) vs. its counterpart gravity cast alloy. Metals, 6(7), Article 148. [CrossRef]
• [12] Fathi, P., Mohammadi, M., Duan, X., & Nasiri, A. M. (2018). A comparative study on corrosion and microstructure of direct metal laser sintered AlSi10Mg_200C and die-cast A360.1 aluminum. Journal of Materials Processing Technology, 259, 114. [CrossRef]
• [13] Gharbi, O., Jiang, D., Feenstra, D. R., Kairy, S. K., Wu, Y., Hutchinson, C. R., & Birbilis, N. (2018). On the corrosion of additively manufactured aluminium alloy AA2024 prepared by selective laser melting. Corrosion Science, 143, 93106. [CrossRef]
• [14] Cabrini, M., Lorenzi, S., Pastore, T., Pellegrini, S., Manfredi, D., Fino, P., Biamino, S., & Badini, C. (2016). Evaluation of ,corrosion resistance of Al–10Si–Mg alloy obtained by means of Direct Metal Laser Sintering. Journal of Materials Processing Technology, 231, 326335. [CrossRef]
• [15] Maleki, E., Unal, O., Bandini, M., Guagliano, M., & Bagherifard, S. (2022). Individual and synergistic effects of thermal and mechanical surface post-treatments on wear and corrosion behavior of laser powder bed fusion , AlSi10Mg. Journal of Materials Processing Technology, 302, Article 117479. [CrossRef]
• [16] Maleki, E., Bagherifard, S., Rovatti, L., Ishola, R.M., Revuru, M., & Guagliano, M. (2023). Developing a best practice for sample preparation of additive manufactured AlSi10Mg for electron backscatter diffraction analysis. Additive Manufacturing Letters, 5, Article 100122. [CrossRef]
• [17] Avanzini, A., Battini, D., Gelfi, M., Girelli, L., Petrogalli, C., Pola, A., & Tocci, M. (2019). Investigation on fatigue strength of sand-blasted DMLS-AlSi10Mg alloy. Procedia Structural Integrity, 18, 119128. [CrossRef]
• [18] Rauito, T., Hamada, A., Kumpula, J., & Jarvenpaa, A. (2022). The effect of shot peening on corrosion performance of anodized laser powder bed fusion manufactured AlSi10Mg. IOP Conference Series: Materials Science and Engineering, 1234, Article 012035. [CrossRef]
• [19] Valentini, F., Pezzato, L., Dabalà, M., & Brunelli, K. (2023). Study of the effect of functionalization with inhibitors on the corrosion properties of PEO-coated additive manufactured AlSi10Mg alloy. Journal of Materials Research and Technology, 27(11–12), 35953609. [CrossRef]
• [20] Duchardt, T., Andersohn, G., & Oechsner, M. (2015). Corrosion behavior of EN AC‐AlSi10Mg in boiling coolant with various average flow temperatures. Materials and Corrosion, 66(9) 931939.
• [21] Cabrini, M., Lorenzi, S., Pastore, T., Testa, C., Manfredi, D., Lorusso, M., Calignano, F., Pavese, M., & Andreatta, F. (2019). Corrosion behavior of AlSi10Mg alloy produced by laser powder bed fusion under chloride exposure. Corrosion Science, 152, 101108. [CrossRef]
• [22] Valentini, F., Pezzato, L., Dabala, M., & Brunelli, K. (2023). Study of the effect of functionalization with inhibitors on the corrosion properties of PEO-coated additive manufactured AlSi10Mg alloy. Journal of Materials Research and Technology, 27, 35953609. [CrossRef]
• [23] Rafieazad, M., Chatterjee, A., & Nasiri, A. M. (2019). Effects of recycled powder on solidification defects, microstructure, and corrosion properties of DMLS fabricated AlSi10Mg. Solidification Defects in Additive Manufactured Materials, 71, 3241–3252. [CrossRef]
• [24] Benbouzid, A. Z., Gharbi, O., Sidi-Yakoub, N., Tran, M. T. T., Turmine, M., & Vivier, V. (2023). Ionic liquid route for the corrosion inhibition of Al alloys: the effect of butylammonium nitrate on the corrosion of AA2024-T6. Corrosion Communications, 9, 5764. [CrossRef]