Lanthanide compounds as environmentally-friendly corrosion inhibitors of aluminium alloys : A review

Passivity breakdown, pit initiation and propagation of pits in metallic materials – Review

Recent progress in corrosion protection of magnesium alloys by organic coatings

The mechanism of corrosion protection of the widely used 2024-T3 aluminum alloy by cerium and lanthanum inhibitors in chloride media is described in detail in the present work. The corrosion process was investigated by means of scanning Kelvin probe force microscopy (SKPFM), in situ atomic force microscopy, and scanning electron microscopy coupled with energy dispersive spectroscopy. Employment of the high-resolution and in situ techniques results in a deep understanding of the details of the physical chemistry and mechanisms of the corrosion processes. The applicability of the SKPFM for mechanistic analysis of the effect of different corrosion inhibitors is demonstrated for the first time. The inhibitors under study show sufficient hindering of the localized corrosion processes especially in the case of pitting formation located around the intermetallic S-phase particles. The main role of Ce(3+) and La(3+) in the corrosion protection is formation of hydroxide deposits on S-phase inclusions buffering the local increase of pH, which is responsible for the acceleration of the intermetallics dealloying. The formed hydroxide precipitates can also act as a diffusion barrier hindering the corrosion processes in active zones. Cerium nitrate exhibits higher inhibition efficiency in comparison with lanthanum nitrate. The higher effect in the case of cerium is obtained due to lower solubility of the respective hydroxide. A detailed mechanism of the corrosion process and its inhibition is proposed based on thermodynamic analysis.

Mechanism of corrosion inhibition of AA2024 by rare-earth compounds.

A study on the corrosion behavior of aluminum alloys in seawater

Using wavelets transform in the analysis of electrochemical noise data

Localized alkaline corrosion of alloy AA5083 in neutral 3.5% NaCl solution

CeCl3 and LaCl3 binary solutions as environment-friendly corrosion inhibitors of AA5083 Al–Mg alloy in NaCl solutions

Wavelet transform-based analysis for electrochemical noise

Use of wavelets to study electrochemical noise transients

A. Aballe

Papers

Using wavelets transform in the analysis of electrochemical noise data

Localized alkaline corrosion of alloy AA5083 in neutral 3.5% NaCl solution

CeCl3 and LaCl3 binary solutions as environment-friendly corrosion inhibitors of AA5083 Al–Mg alloy in NaCl solutions

Wavelet transform-based analysis for electrochemical noise

Use of wavelets to study electrochemical noise transients