Corrosion behaviour of AA2024 aluminium alloy in different tempers in NaCl solution and with the CeCl3 corrosion inhibitor
Abstract
The paper analyses the corrosion behaviour of naturally and artificially aged AA2024 alloy in NaCl solution and in the presence of an environment-friendly corrosion inhibitor, CeCl3. On the basis of the values of polarisation resistance and corrosion current density, the corrosion resistance of the protective inhibitor film is established as well as the general corrosion resistance of this aluminium alloy. Resistance to pit formation is determined based on the difference in pitting and corrosion potentials while resistance to pit growth is determined based on the amount of charge consumed during pit growth. A scanning electron microscope is used to examine the morphology of the pits formed during the pitting corrosion testing, as well as to determine the cerium content on intermetallic particles and the matrix AA2024 alloy. The corrosion behaviour of AA2024 alloy is investigated after different test periods in NaCl solution and in the same solution with the CeCl3 inhibitor. The corrosi...on resistance of both tempers of AA2024 alloy is more than one order of magnitude higher in the presence of CeCl3. An explanation of the observed differences in the corrosion behaviour of the naturally and artificially aged AA2024 alloy is proposed. Different corrosion behaviour of the alloy after different test periods is also explained.
Keywords:
pitting corrosion / EIS / corrosion inhibitor / cerium / aluminium alloySource:
Materials and Corrosion-Werkstoffe Und Korrosion, 2020, 71, 3, 352-364Publisher:
- Wiley-V C H Verlag Gmbh, Weinheim
Funding / projects:
- Investigation and Optimization of the Technological and Functional Performance of the Ventilation Mill in the Thermal Power Plant Kostolac B (RS-MESTD-Technological Development (TD or TR)-34028)
- Development of the tribological micro/nano two component and hybrid selflubricating composites (RS-MESTD-Technological Development (TD or TR)-35021)
DOI: 10.1002/maco.201911219
ISSN: 0947-5117
WoS: 000526052100002
Scopus: 2-s2.0-85073923013
Collections
Institution/Community
Inovacioni centarTY - JOUR AU - Jegdić, Bore AU - Bobić, Biljana AU - Linić, Suzana PY - 2020 UR - https://machinery.mas.bg.ac.rs/handle/123456789/3404 AB - The paper analyses the corrosion behaviour of naturally and artificially aged AA2024 alloy in NaCl solution and in the presence of an environment-friendly corrosion inhibitor, CeCl3. On the basis of the values of polarisation resistance and corrosion current density, the corrosion resistance of the protective inhibitor film is established as well as the general corrosion resistance of this aluminium alloy. Resistance to pit formation is determined based on the difference in pitting and corrosion potentials while resistance to pit growth is determined based on the amount of charge consumed during pit growth. A scanning electron microscope is used to examine the morphology of the pits formed during the pitting corrosion testing, as well as to determine the cerium content on intermetallic particles and the matrix AA2024 alloy. The corrosion behaviour of AA2024 alloy is investigated after different test periods in NaCl solution and in the same solution with the CeCl3 inhibitor. The corrosion resistance of both tempers of AA2024 alloy is more than one order of magnitude higher in the presence of CeCl3. An explanation of the observed differences in the corrosion behaviour of the naturally and artificially aged AA2024 alloy is proposed. Different corrosion behaviour of the alloy after different test periods is also explained. PB - Wiley-V C H Verlag Gmbh, Weinheim T2 - Materials and Corrosion-Werkstoffe Und Korrosion T1 - Corrosion behaviour of AA2024 aluminium alloy in different tempers in NaCl solution and with the CeCl3 corrosion inhibitor EP - 364 IS - 3 SP - 352 VL - 71 DO - 10.1002/maco.201911219 ER -
@article{ author = "Jegdić, Bore and Bobić, Biljana and Linić, Suzana", year = "2020", abstract = "The paper analyses the corrosion behaviour of naturally and artificially aged AA2024 alloy in NaCl solution and in the presence of an environment-friendly corrosion inhibitor, CeCl3. On the basis of the values of polarisation resistance and corrosion current density, the corrosion resistance of the protective inhibitor film is established as well as the general corrosion resistance of this aluminium alloy. Resistance to pit formation is determined based on the difference in pitting and corrosion potentials while resistance to pit growth is determined based on the amount of charge consumed during pit growth. A scanning electron microscope is used to examine the morphology of the pits formed during the pitting corrosion testing, as well as to determine the cerium content on intermetallic particles and the matrix AA2024 alloy. The corrosion behaviour of AA2024 alloy is investigated after different test periods in NaCl solution and in the same solution with the CeCl3 inhibitor. The corrosion resistance of both tempers of AA2024 alloy is more than one order of magnitude higher in the presence of CeCl3. An explanation of the observed differences in the corrosion behaviour of the naturally and artificially aged AA2024 alloy is proposed. Different corrosion behaviour of the alloy after different test periods is also explained.", publisher = "Wiley-V C H Verlag Gmbh, Weinheim", journal = "Materials and Corrosion-Werkstoffe Und Korrosion", title = "Corrosion behaviour of AA2024 aluminium alloy in different tempers in NaCl solution and with the CeCl3 corrosion inhibitor", pages = "364-352", number = "3", volume = "71", doi = "10.1002/maco.201911219" }
Jegdić, B., Bobić, B.,& Linić, S.. (2020). Corrosion behaviour of AA2024 aluminium alloy in different tempers in NaCl solution and with the CeCl3 corrosion inhibitor. in Materials and Corrosion-Werkstoffe Und Korrosion Wiley-V C H Verlag Gmbh, Weinheim., 71(3), 352-364. https://doi.org/10.1002/maco.201911219
Jegdić B, Bobić B, Linić S. Corrosion behaviour of AA2024 aluminium alloy in different tempers in NaCl solution and with the CeCl3 corrosion inhibitor. in Materials and Corrosion-Werkstoffe Und Korrosion. 2020;71(3):352-364. doi:10.1002/maco.201911219 .
Jegdić, Bore, Bobić, Biljana, Linić, Suzana, "Corrosion behaviour of AA2024 aluminium alloy in different tempers in NaCl solution and with the CeCl3 corrosion inhibitor" in Materials and Corrosion-Werkstoffe Und Korrosion, 71, no. 3 (2020):352-364, https://doi.org/10.1002/maco.201911219 . .