Variable corrosion behavior of a thick amorphous carbon coating in NaCl solution

Zhang, Renhui; Wang, Liping; Shi, Wei

doi:10.1039/c5ra18966g

Cited by 24 publications

(10 citation statements)

References 58 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…When performed in the aggressive seawater solution, the coatings containing alternating interface and few pinhole layers exhibited good corrosion resistance due to its better ability of corrosion prevention. This was similar to the multilayer coatings, in which the corrosion resistance improvements were not only attributed to the reduced possibility of media throughout coatings by defects but also redirected the current flow between coatings and substrates . Furthermore, the high adhesion strength also contributed to the high anti‐corrosion performance of coatings.…”

Section: Discussionsupporting

confidence: 62%

“…This was similar to the multilayer coatings, in which the corrosion resistance improvements were not only attributed to the reduced possibility of media throughout coatings by defects but also redirected the current flow between coatings and substrates. [40] Furthermore, the high adhesion strength also contributed to the high anti-corrosion performance of coatings. Otherwise, the further increase of intermediate plasma treatments would induce grain refinement, which implied that more grain boundary could provide more paths for the corrosive electrolyte to access the substrate.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Effects of intermediate Ar plasma treatments on CrN coating microstructures and property evolutions

Guan

Wang

Zhang

et al. 2016

Surf. Interface Anal.

Self Cite

View full text Add to dashboard Cite

Chromium nitride (CrN) coatings with different steps of intermediate argon plasma treatments were deposited with primary (200) orientation by multi‐arc ion plating technique. By virtue of scanning electron microscopy, X‐ray diffraction and high‐resolution transmission electron microscopy, the influence of intermediate argon plasma treatments on the coating microstructures, mechanical properties and corrosion properties as well as tribological behaviors in artificial seawater solutions were systematically investigated. It was assumed that the mechanical properties, adhesion strength, corrosion and tribological performances of coatings depended on argon plasma treatment steps. High‐performance coatings could be obtained by proper plasma treatment steps. The superior anti‐corrosion ability of coating with appropriate treatment steps may be ascribed to the increased charge transfer resistance due to alternative interface and CrN layer and the compact microstructure. On the other hand, the excellent tribological performances in seawater conditions may be attributed to the enhanced mechanical properties. Otherwise, further increase in treatment steps was assumed to distinctly increase defects and deteriorate the coating integrity thus weakening coating properties and behaviors. Copyright © 2016 John Wiley & Sons, Ltd.

show abstract

Section: Discussionsupporting

confidence: 62%

Section: Discussionmentioning

confidence: 99%

Effects of intermediate Ar plasma treatments on CrN coating microstructures and property evolutions

Guan

Wang

Zhang

et al. 2016

Surf. Interface Anal.

Self Cite

View full text Add to dashboard Cite

show abstract

“…By contrast, BN and graphite coatings showed relatively smaller semicircles. The larger the semicircle, the higher the charge transfer resistance [30,45]. Therefore, MoS 2 -coated steel showed the best performance in corrosion protection, as the corrosion of steel depends on the charge transfer process.…”

Section: Resultsmentioning

confidence: 99%

Assessing corrosion resistance of two-dimensional nanomaterial-based coatings on stainless steel substrates

et al. 2020

View full text Add to dashboard Cite

Two-dimensional (2D) materials have elicited considerable interest in the past decade due to a diverse array of novel properties ranging from high surface to mass ratios, a wide range of band gaps (insulating boron nitride (BN) to semiconducting transition metal dichalcogenides), high mechanical strength and chemical stability. Given the superior chemo-thermo-mechanical properties, 2D materials may provide transformative solution to a familiar yet persistent problem of significant socio-economic burden: the corrosion of stainless steel (SS). With this broader perspective, we investigate corrosion resistance properties of SS-coated with 2D nanomaterials; molybdenum disulfide (MoS 2 ), BN, bulk graphite in 3.5 wt% aqueous NaCl solution. The nanosheets were prepared by a novel liquid phase exfoliation technique and the coatings were made by a paint brush to achieve uniformity. Open circuit potential (OCP) and potentiodynamic plots indicate the best corrosion resistance is provided by the MoS 2 coatings. Superior performance of the coating is attributed to low electronic conductivity, large flake size and uniform coverage of SS substrate, which probably impeded the corrosive ions from the solution from diffusing through the coating.

show abstract

“…Regardless of the presence or absence of BTA, as shown in Figure 5 and Table 4 , specimen 2 had a lower corrosion current density ( i corr ) and similar or higher E corr compared to specimen 1. Raman and Zhang reported that i corr is decreased and E corr adjusted more toward a positive direction when metal is coated with a graphene or carbon layer [ 35 , 36 ]. They suggested that the carbon layer or graphene reduced the dissolution of metal, thereby decreasing the corrosion rate by 2–3 times, and increased corrosion resistance, thereby moving E corr toward a more positive direction.…”

Section: Resultsmentioning

confidence: 99%

“…CPE1 is the barrier capacitance corresponding to R1 , R ct is the charge transfer resistance, and CPE2 is the capacitance due to the electric double layer generated at the interface between the rust/ barrier and metal substrates. The constant phase element ( CPE ) is a non-ideal capacitance with a varying n , expressed by Equation (2) [ 9 , 25 , 36 , 38 ]

where Y 0 is the magnitude of the CPE , and n is a parameter by frequency dispersion. The parameter n is affected by non-homogeneity and surface roughness [ 9 ].…”

Section: Resultsmentioning

confidence: 99%

Effect of Benzotriazole on the Localized Corrosion of Copper Covered with Carbonaceous Residue

Lee

Hong

et al. 2021

Materials

View full text Add to dashboard Cite

Carbonaceous residues on copper pipes during the manufacturing process are known to be one of the main causes of pitting corrosion on copper pipes. This study examined the corrosion-inhibiting effect of benzotriazole (BTA) on C12200 copper pipes with carbonaceous film in synthetic tap water. In the absence of BTA, localized corrosion mechanisms due to galvanic corrosion, crevice corrosion, and oxygen-concentration cell were proposed in the boundary part of the carbonaceous film on the copper through X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) with energy dispersive spectrometer (EDS) analyses. Electrochemical tests showed that BTA inhibits corrosion by forming Cu−BTA complexes on all over the copper surface where carbonaceous film is present. BTA mitigates galvanic corrosion and crevice corrosion at the boundary of the carbonaceous film and suppresses the formation of oxygen-concentration cells through the formation of a Cu−BTA complex.

show abstract

Variable corrosion behavior of a thick amorphous carbon coating in NaCl solution

Abstract: The present work investigates a thick amorphous multi-layer carbon coating fabricated by a plane hollow cathode plasma-enhanced chemical vapor deposition technique.

Cited by 24 publications

References 58 publications

Effects of intermediate Ar plasma treatments on CrN coating microstructures and property evolutions

Effects of intermediate Ar plasma treatments on CrN coating microstructures and property evolutions

Assessing corrosion resistance of two-dimensional nanomaterial-based coatings on stainless steel substrates

Effect of Benzotriazole on the Localized Corrosion of Copper Covered with Carbonaceous Residue

Contact Info

Product

Resources

About