A focused ion beam–scanning electron microscope tomography study has been undertaken on an equally nitrided FeNiCrAl sample to characterize its nitridation corrosion features chemically and morphologically. The alloy is strengthened by a high number of chromium carbide precipitates. Besides the confirmation of the complete encapsulation of the corrosion pocket from the alloy, very large voids have been found in said pockets.

The corrosion behavior of three high-Ni, high-Cr alloys in a mixture of 60% NaNO₃–40% KNO₃ at 600°C has been evaluated by using weight loss tests, potentiodynamic polarization curves, and electrochemical impedance spectroscopy (EIS). The results indicated the formation of a passive layer in all cases and the EIS data have shown that the corrosion mechanism for all the alloys was charge transfer from the alloy to the molten salt.

In this study, ultrathin hydroxyapatite (HA)-based coating and HA containing Sr coatings are deposited via pulsed electron ablation technique on pure Mg. The materials covered by this layer were characterized by superior corrosion behavior, with corrosion rates of coated samples up to five times lower as compared with the uncoated ones. Such coating is the thinnest coating found in the literature sources.

Y presence in the β phase of Al–Mg–Mn alloys could be a factor in the improved intergranular corrosion (IGC) resistance. Furthermore, the formation of the Al₁₄Mg₅Y phase inhibits the precipitation of the β-Al₃Mg₂ at the grain boundaries, which is the dominant mechanism for the enhanced IGC resistance by Y addition.

The results show that the Mg–1Al alloy possesses the larger corrosion resistance during discharge, correspondingly, the anode utilization efficiency significantly increased at 1 and 5 mA/cm² compared with pure Mg. However, further increase of the Al content does not continuously improve the discharge performance of the Mg anode due to the decline of utilization efficiency.

An innovative short basalt fiber/aluminum composite is prepared by vacuum hot-press sintering technique. Also, the corrosion behavior of the composites is investigated by hydrogen evolution and electrochemical tests. The results show that the short basalt fiber improves the strength and density of the oxide film of the composite, thereby improving its corrosion resistance.

The present approach combines the nondestructive methods, electrochemical impedance spectroscopy and Fourier-transform infrared spectroscopy, as powerful tools in a complementary manner to describe the degradation mechanism and kinetics of two epoxy-based adhesives, which are commonly used in electronic packaging. It is demonstrated that the application quality has a dominant impact on the optimization of the lifetime.

The present work refers to the numerical analysis of the 2D images and 3D maps of 316L steel surface recorded at different stages of the corrosion process. It is shown that using an artificial neural network and 2D grayscale images, instead of black and white images as an input variable, the corrosion degree of 316L steel surface could be predicted. Moreover, 3D surface maps allow to determine the evolution of the stable pit depth with the immersion time.

The negatively asymmetric dynamic direct current interference would induce localized corrosion in the experimental conditions. The localized corrosion behavior was probably related to the breakdown of the passive film, which was in an unstable and active condition under the repeated anodic and cathodic polarization.

Higher hardness entrusts cold-sprayed Fe25Cr20Mo1Si coating higher anti-abrasion performance, free of through-thickness pore endows cold-sprayed Fe25Cr20Mo1Si coating better anticorrosion performance than plasma-sprayed Fe25Cr20Mo1Si coating.

The performance of N-methyl-2-hydroxyethylammonium oleate ([m-2HEA][Ol]) as a corrosion inhibitor for mild steel in a 0.1-mol/L hydrochloric acid solution and the role of chloride in the inhibition mechanism were investigated in this paper. Results revealed that [m-2HEA][Ol] behaves as a mixed-type adsorption inhibitor, by blocking cathodic sites and by modifying the activation energy of the anodic reaction, and it can reach up to 94–97% of inhibition efficiency.

Kraft lignin–EPTAC polymer exhibited excellent corrosion inhibition performance on carbon steel in HCl solution. The inhibiting efficiency and its inhibition mechanism were investigated using electrochemical methods, adsorption thermodynamics analysis, and molecular dynamic simulation.

A comparative study on 1-dodecyl-2,3-dimethylimidazolium chloride and 1-benzyl-3-dodecyl-2-methylimidazol-1-ium chloride ([BDMIM]Cl) as corrosion inhibitors for N80 steel in a 15% HCl solution was performed by surface tension tests, electrochemical measurements, weight loss, scanning electron microscopy, atomic force microscopy, and theoretical calculations. The experimental results confirm that [BDMIM]Cl exhibits better inhibitive performance, lower critical micelle concentration, and a lower ratio of saturation adsorption concentration.