... through electrochemical impedance spectroscopy ( EIS ) and adhesion testing. Findings Both thermoplastic and thermosetting resins were found to form continuous and complete film layers on the surfaces of aluminum alloys. Under conditions of comparable surface integrity and contact angles, distinct...

... with absolute ethanol and dried for standby. For metallographic observation, Keller’s reagent (2 mL HF + 3 mL HCl + 5 mL HNO ₃ + 190 mL H₂O) was used to etch the samples for 10–15 s to reveal the grain boundaries and precipitates. Selective laser melting EIS Additive manufacturing...

... and combining with the electrochemical impedance spectroscopy (EIS) technique, the impedance characteristics of the thin coating (19 µm) and the thick coating (115 µm) in the fully immersion zone and the water level fluctuation zone were compared and analyzed. The Young model, power-law model and double layer...

... Wt.%). Design/methodology/approach Scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier-transform infrared spectroscopy and atomic force microscopy (AFM) were used to identify the MOFs and applied coatings. Electrochemical impedance spectroscopy (EIS...

... corrosion rates rather than the full-scale corrosion behavior of the zinc. This paper aims to study the full-scale corrosion evolution of galvanic steel under simulated marine atmospheric environment using real-time EIS measurement. Design/methodology/approach Electrochemical impedance spectroscopy (EIS...

..., adhesion strength and scratch resistance of coating have been evaluated. To reveal the effect of graphene on the anti-corrosion property of coating for aluminum alloy, the electrochemical impedance spectroscopy (EIS) has been conducted in 3.5 Wt.% NaCl medium. Findings Scanning electron microscopy...

... NMR), Carbon-13 (C13) nuclear magnetic resonance (13C NMR) and Fourier Transform Infrared Spectroscopy (FT-IR). Then, the inhibition efficiency of HEMAP on MS in a hydrochloric acid solution was investigated by potentiodynamic polarization and electrochemical impedance spectroscopy (EIS). To explain...

.... Philippe Refait can be contacted at: prefait@univ-lr.fr 23 05 2023 04 07 2023 20 07 2023 © Emerald Publishing Limited 2023 Emerald Publishing Limited Licensed re-use rights only Cathodic protection Thin natural seawater films Calcareous deposit Tidal zone EIS...

... most obviously, showing the best corrosion resistance. These results are consistent with the analysis results of open circuit potential and EIS. In addition, the self-assembled film can suppress the cathodic reaction (oxygen reduction), especially for #5 and #1 samples. EIS can be used...

... 2023 Emerald Publishing Limited Licensed re-use rights only CFRP HF Epoxy resin EIS As a composite material, carbon fiber reinforced composites (CFRP) are typically made with organic polymer as the matrix and carbon fiber as the reinforcing material. Due to the excellent properties...

... ⋅ A ⋅ t × 8.76 × 10 4 Figure 1 gives the calculated CR of pure Mg, AZ31 and AZ91 in PBS, basing on the weight losses data after 72 h immersion via equation (1) : For EIS measurements, Gamry Reference 600 electrochemical workstation and the traditional three-electrode system...

...). Al alloy composite EIS Localized corrosion Figure 4 (a) Polarization curves of the plane and cross-sectional samples in 3.5 Wt.% NaCl solution at room temperature, (b) EIS spectra of the plane and cross-sectional samples at OCP after 4 h immersion in 3.5 Wt.% NaCl solution at room...

...) with different chloride concentration at pH = 12.5 was studied using different electrochemical test methods. Electrochemical test methods include electrochemical impedance spectroscopy (EIS) and Mott–Schottky analysis. X-ray photoelectron spectroscopy (XPS) measurements were performed to determine the chemical...

... Electrodeposition ZnNi alloy coating Nano-silica particles Corrosion resistance Polarization EIS Salt spray The sacrificial zinc coating has been widely used to protect steel against corrosion. However, the dissolution rate of pure zinc coating during protection is rather high. To control...

... strength of coating have been evaluated. To reveal the effect of SiO₂@Ce nanocontainer on corrosion behavior of epoxy-coated steel, the electrochemical impedance spectroscopy (EIS) has been conducted in NaCl solution. Findings Transmission electron microscopy and scanning electron microscopy...

... emission scanning electron microscope (FE-SEM) was used to examine the surface of the anodized oxide layer and electrochemical impedance spectroscopy (EIS) was used for electrochemical corrosion evaluations. Findings The results of corrosion tests showed that the sample anodized in the solution without...

... potentiodynamic polarization curves, electrochemical impedance spectroscopy (EIS) and immersion test in an aerated 3.5% NaCl solution. Findings The results showed that the activation treatment accelerated the deposition of the phosphate coating and improved its surface coverage. A higher phosphate coating...

... (EIS) measurements. Second, scanning electron microscopy, energy dispersive spectroscopy and X-ray diffraction were used to observe and test the corrosion product film immersed in the oilfield water for 30 days. Findings The results indicate that the tendency of metal corrosion becomes weaker...

... for biomedical application. Mosaad Negem can be contacted at: mra00@fayoum.edu.eg 03 07 2020 03 03 2021 03 03 2021 © Emerald Publishing Limited 2021 Emerald Publishing Limited Licensed re-use rights only Corrosion EIS Polarization studies Simulated body fluids Stainless...

... 2021 © Emerald Publishing Limited 2021 Emerald Publishing Limited Licensed re-use rights only Aluminum alloy Anti-corrosion layers EIS Myristic acid Pseudoboehmite Self-assembly XPS Self-assembled layers Self-assembled layers (SALs) of amphiphilic molecules are often used...