Corrosion resistance performance of newly developed cobalt-free maraging steel over conventional maraging steel in acidic media

Seikh, Asiful H.; Halfa, Hossam; Sherif, El‐Sayed M.

doi:10.1080/2374068x.2016.1181479

Cited by 2 publications

(3 citation statements)

References 23 publications

(27 reference statements)

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“…The EIS measurements evaluate the kinetic parameters associated with the electron transfer reaction at the surface–electrolyte interface and hence reveal the degradation mechanism of the coatings [ 25 , 26 , 27 , 28 , 29 , 30 , 31 ]. Figure 4 shows the Nyquist plots of the nanoparticle-incorporated epoxy coatings after immersion for 1 h in a 3.5% saline solution.…”

Section: Resultsmentioning

confidence: 99%

“…It is well known that R P1 represents the polarization resistance between the interface of the solution and the epoxy coating, and R P2 is the resistance between the corrosion product layer and the solution [ 26 , 27 , 28 , 29 ]. The overall polarization resistance (or coating resistance, expressed in MΩ cm 2 ) is obtained by combining R P1 and R P2 .…”

Section: Resultsmentioning

confidence: 99%

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Effect of Incorporated ZnO Nanoparticles on the Corrosion Performance of SiO2 Nanoparticle-Based Mechanically Robust Epoxy Coatings

et al. 2020

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This paper presents the studies of the development of a high-performance epoxy coating for steel substrates. To this end, it investigated the synergistic effect of incorporating zinc oxide (ZnO) nanoparticles into nanosilica containing epoxy formulations. The mechanical properties of the epoxy coating formulations were improved by modifying the surfaces of the silica nanoparticles (5 wt.%) with 3-glycidoxypropyl trimethoxysilane, which ensured their dispersal through the material. Next, the ZnO nanoparticles (1, 2, or 3 wt.%) were incorporated to improve the corrosion performance of the formulations. The anticorrosive properties of the coatings were examined by electrochemical impedance spectroscopy (EIS) of coated mild steel specimens immersed in 3.5% NaCl solution over different time intervals (1 h to 30 days). Incorporation of the ZnO nanoparticles and the nanosilica into the coating formulation improved the corrosion resistance of the epoxy coating even after long-term exposure to saline test solutions. Finally, to evaluate how the nanoparticles affected the chemical and morphological properties of the prepared coatings, the coatings were characterized by scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy, and X-ray diffraction (XRD).

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Effect of Incorporated ZnO Nanoparticles on the Corrosion Performance of SiO2 Nanoparticle-Based Mechanically Robust Epoxy Coatings

et al. 2020

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“…EIS measurements have been successfully employed to report the kinetic parameters for the electron transfer at the surface/electrolyte interface [14,[25][26][27][28][29][30]. The Nyquist plots obtained for F1 and F2 epoxy coating incorporated Ag and ZnO nanoparticles after 1 h immersion in 3.5% NaCl solution are shown in Figure 6.…”

Section: Electrochemical Impedance Spectroscopy (Eis)mentioning

confidence: 99%

Synergistic Effect of Ag and ZnO Nanoparticles on Polypyrrole-Incorporated Epoxy/2pack Coatings and Their Corrosion Performances in Chloride Solutions

et al. 2019

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In this study, two formulae (F1 and F2) of epoxy/2pack coatings incorporated with polypyrrole (PPy)-conducting polymer were produced from bisphenol-A type of epoxy resin (DGEBA) with the addition of Ag and ZnO nanoparticles. The synergism effect of Ag and ZnO nanoparticles on the mechanical and corrosion resistance properties was reported. The curing agent 2,4,6-tris (dimethylaminomethyl) phenol (ARADUR 3282-BD) was used under optimized stoichiometry values. The nanoparticles ratio in different wt.% were first dispersed in solvent by the sonication process and then added to epoxy/PPy composition. All the coated steel panels were cured at room temperature in a controlled dust free environment for 7 days in order to obtain a hard and intact coating. The dispersion of nano-size ZnO and Ag pigments was investigated using scanning electron microscopy (SEM) and its composition through an energy dispersive X-ray (EDX) technique. Conventional techniques and nano-indentation were also performed to observe the effect of ZnO and Ag synergism content on the hardness and modulus of elasticity at nano scale. The corrosion behavior of the coated samples was investigated at room temperature in 3.5% NaCl solution using electrochemical impedance spectroscopy (EIS). The synergism effect of nanoparticles along with PPy resulted in an enhancement of mechanical and corrosion-resistant properties.

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Corrosion resistance performance of newly developed cobalt-free maraging steel over conventional maraging steel in acidic media

Cited by 2 publications

References 23 publications

Effect of Incorporated ZnO Nanoparticles on the Corrosion Performance of SiO2 Nanoparticle-Based Mechanically Robust Epoxy Coatings

Effect of Incorporated ZnO Nanoparticles on the Corrosion Performance of SiO2 Nanoparticle-Based Mechanically Robust Epoxy Coatings

Synergistic Effect of Ag and ZnO Nanoparticles on Polypyrrole-Incorporated Epoxy/2pack Coatings and Their Corrosion Performances in Chloride Solutions

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