The Effect of Ambient Ageing on the Corrosion Protective Properties of a Lithium-Based Conversion Layer

Ziyu Li, Axel Homborg, Yaiza Gonzalez-Garcia, Peter Visser, Mohammad Soleimani, Arjan Mol*

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

1 Downloads (Pure)


The influence of ageing under ambient conditions on the corrosion protective behaviour of a lithium-based conversion layer on AA2024-T3 is studied in this work. Conversion layers aged at ambient conditions for relatively short times (0 h and 4 h), show an initial high degree of corrosion inhibition but a much lower protectiveness after the inhibition stage terminates. Conversion layers with relatively long ageing times (24 h and 72 h) show a rather stable corrosion resistance which is higher than that of short-time aged samples. It is hypothesized that the freshly-formed conversion layer has trapped a certain amount of lithium ions and water molecules, leading to ongoing and heterogeneous growth of the conversion layer with time under ambient indoor conditions. Moreover, conversion layers with short ageing times show early-stage active corrosion protection by lithium-ion release.

Original languageEnglish
Article number031504
JournalJournal of the Electrochemical Society
Issue number3
Publication statusPublished - 2023

Bibliographical note

Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.


  • ageing
  • Aluminium alloy
  • corrosion inhibition
  • electrochemical noise
  • lithium-based conversion layer


Dive into the research topics of 'The Effect of Ambient Ageing on the Corrosion Protective Properties of a Lithium-Based Conversion Layer'. Together they form a unique fingerprint.

Cite this