%0 journal article
%@ 1003-6326
%A Yang, J.J.,Wang, L.Q.,Blawert, C.,Lamaka, S.V.,Feiler, C.,Zheludkevich, M.L.,Li, W.

%D 2024
%J Transactions of Nonferrous Metals Society of China
%N 5
%P 1496-1506 
%R doi:10.1016/S1003-6326(24)66486-1
%T Cathodic inhibition mechanism of magnesium alloys by using iron-complex inhibitor
%U https://doi.org/10.1016/S1003-6326(24)66486-1
5 
%X The effect of a cathodic inhibitor (3-methylsalicylate, 3-MeSA) on the corrosion properties of Fe-contained pure Mg was investigated. The composition of Fe-rich particles, corrosion surface morphology, and molecular structure of 3-MeSA provide experimental and theoretical evidence for the corrosion behavior of Fe-contained Mg alloy and the corresponding cathodic inhibition mechanism of 3-MeSA. The results showed that silicon in a solid solution within Fe-rich particles was found, and the features of corrosion spots may correlate with different Fe/Si ratios. Although 3-MeSA can form an adsorptive layer on Mg substrate, its inhibition mechanism can be mainly ascribed to the capability to chelate Fe2+/Fe3+ ions released from self-corrosion of Fe-rich particles, preventing the re-deposition of the reduced Fe species.