Performance evaluation of triethanolamine as corrosion inhibitor for magnesium alloy in 3.5 wt% NaCl solution

Abstract

The anti-corrosion performance of triethanolamine with Mg alloy in 3.5 wt% NaCl solution has been studied by immersion experiment, electrochemical impedance spectroscopy, potentiodynamic polarization, surface analysis, and quantum chemical methods.

Experimental and computational studies of graphene oxide covalently functionalized by octylamine: electrochemical stability, hydrogen evolution, and corrosion inhibition of the AZ13 Mg alloy in 3.5% NaCl

“…Their electrochemical results showed an inhibition efficiency of up to 91% due to the nonbonding electrons of the amine groups adsorbed onto the Mg alloy surface. 7 Hoche et al…”

Hybrid organic-inorganic coatings via electron transfer behaviour

“…Finally, the fraction of electrons transferred from the inhibitor to the metallic surface, ∆N , is given by Eq. 6 59 . …”

Na2SnO3 functions as outstanding magnesium alloy passivator by synergistic effect with trace carboxymethyl chitosan for Mg–air batteries for standby protection

“…3.3 Comparative efficiency and the amount of inhibitors. According to previous studies [65][66][67][68][69][70][71][72][73][74][75][76] (the data in the literature are shown in Table 6), the inhibition efficiency of the corrosion inhibitor for the Mg alloy is mostly concentrated between 70% and 95%. In the current work, the maximum corrosion inhibition efficiency of 94.3% for the AZ61 alloy in NaCl solution was derived based on the hydrogen evolution tests by adding the mixed inhibitors (5.0 mM Na 2 SnO 3 + 0.1 mM CMCS); such efficiency is higher than that of most single inhibitors or inhibitor combination.…”