Local electrochemical corrosion performance of nano-SiC/MAO composite coating on 6061-Al alloy

Liu, Yida; Jie, Zhao; Yang, Xiaoyu; Gu, Yanhong; Yang, Zhen

doi:10.1108/acmm-01-2022-2590

Cited by 13 publications

(9 citation statements)

References 45 publications

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“…Especially when the content of ZrC was up to 1.4 wt.%, the type of corrosion changed from pitting corrosion to surface corrosion, and it exhibited a relatively poor corrosion resistance than pure FeCrAl alloy. This is mainly because most of the nano ZrC particles are prone to segregate on the grain boundaries (Ding et al , 2019; Wan et al , 2021), which enhances the intergranular corrosion rate and reduces the continuity of the passive film (Liu et al , 2022; Qin et al , 2023), leading to the worse corrosion performance (Geng et al , 2020). In addition, Ding et al (2019) pointed out that adding ZrC nanoparticles can markedly refine the grains, which will lead to a large number of grain boundaries with high energy, making it more susceptible to corrosion along the grain boundaries (Manjhi et al , 2023).…”

Section: Resultsmentioning

confidence: 99%

Mechanical and corrosion properties of nano ZrC reinforced FeCrAl alloys

Ma,

Zhang,

et al. 2023

ACMM

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Purpose The purpose of this study is to investigate the effect of nano ZrC particles on the mechanical and electrochemical corrosion properties of FeCrAl alloys, providing a beneficial reference basis for the development of high-performance carbide reinforced FeCrAl alloys with good mechanical and corrosion properties in the future. Design/methodology/approach Nano ZrC reinforced FeCrAl alloys were prepared by mechanical alloying and spark plasma sintering. Phases composition, tensile fractography, corrosion morphology and chemical composition of nano ZrC reinforced FeCrAl alloys were analyzed by X-ray diffraction, scanning electron microscopy and energy dispersive X-ray spectroscopy, respectively. Microhardness and tensile properties of nano ZrC reinforced FeCrAl alloys were investigated by mechanical testing machine and Vickers hardness tester. Electrochemical corrosion properties of nano ZrC reinforced FeCrAl alloys were investigated by electrochemical workstation in 3.5 wt.% NaCl solution. Findings The results showed that addition of nano ZrC can effectively improve the mechanical and corrosion properties. However, excessive nano ZrC could decrease the mechanical properties and reduce the corrosion resistance. In all the FeCrAl alloys, FeCrAl–0.6 wt.% ZrC alloy exhibits the optimum mechanical properties with an ultimate tensile strength, elongation and hardness of 990.7 MPa, 24.1% and 335.8 HV1, respectively, and FeCrAl–0.2 wt.% ZrC alloy has a lower corrosion potential (−0.179 V) and corrosion current density (2.099 µA/cm2) and larger pitting potential (0.497 V) than other FeCrAl–ZrC alloys, showing a better corrosion resistance. Originality/value Adding proper nano ZrC particles can effectively improve the mechanical and corrosion properties, while the excessive nano ZrC is harmful to the mechanical and corrosion properties of FeCrAl alloys, which provides an instruction to develop high-performance FeCrAl cladding materials.

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Section: Resultsmentioning

confidence: 99%

Mechanical and corrosion properties of nano ZrC reinforced FeCrAl alloys

Ma,

Zhang,

et al. 2023

ACMM

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“…The different processes occurring at the metal/coating interface can be modeled using equivalent electrical circuits which are shown in Figure 7. The below were the equivalent circuit's corresponding parts: R s and R c represent the resistance of the solution and the coatings, Q c represents the capacitance, R ct and Q dl represent the charge transfer resistance and interfacial double-layer capacitance and W is the Warburg impedance (Liu et al, 2022a(Liu et al, , 2022bWei et al, 2022).…”

Section: Electrochemical Measurementsmentioning

confidence: 99%

“…Many effective strategies are currently used to control and reduce corrosion of metals: coatings protection, addition of corrosion inhibitors, electrochemical methods, etc. (Chen et al , 2019; Liu et al , 2022). The organic coatings’ method is preferential due to its simple preparation and excellent performance.…”

Section: Introductionmentioning

confidence: 99%

Cerium dioxide modified with fumaric acid as corrosion inhibitor for epoxy coatings on Q235

Dong

Zhang

et al. 2023

ACMM

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Purpose The purpose of this study is to modify cerium dioxide with fumaric acid (CeO2-f) to improve its compatibility and dispersibility in epoxy resin and to investigate the effect of the content on the coating performance. Design/methodology/approach To investigate whether CeO2-f reacts with epoxy resin by ring opening, CeO2-f and epoxy resin-treated CeO2-f (Ce CeO2-f/EP) were analyzed by infrared radiation (IR), X-ray diffraction (XRD) and ultraviolet-visible diffuse reflectance spectroscopy (UV-Vis). To reveal the effect of different content on coatings properties, neutral salt spray test (NSST) and electrochemical test were performed. Findings The results of IR, XRD, X-ray photoelectron spectroscopy and UV-Vis indicated that fumaric acid attached to the CeO2 surface by chemical bonding and underwent a ring-opening reaction with epoxy resin, thus, improving the compatibility of CeO2 in epoxy resin. NSST and electrochemical impedance spectroscopy results showed that the coatings containing 5% CeO2-f exhibited the optimal corrosion resistance. The reason is that a dense conversion film was established on the substrate surface. Originality/value The epoxy coatings using CeO2-f as fillers with synergistic inhibition ability are promising for the protection of carbon steel.

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“…Because of the anisotropy of composite plate, its substrate orientations may have great influence on the corrosion resistance (Liu et al , 2022). The thin Al composite plate from the cross-sectional surface exhibits several kinds of Al-alloy to the electrolyte, which may suffer from localized corrosion and galvanic corrosion.…”

Section: Introductionmentioning

confidence: 99%

Corrosion behavior of a five-layer Al alloy composite plate in NaCl solution

Zhou

Wang

et al. 2023

ACMM

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Purpose This paper aims to investigate the electrochemical corrosion behavior of a five-layer Al alloy composites (4343/4047/3003/4047/4343) with a thickness of 0.2 mm in NaCl solution. Design/methodology/approach Electrochemical impedance spectroscopy, polarization curve and morphology analyses were used to study the corrosion behavior of the Al alloy composites from cross-sectional and plane directions. Findings The corrosion resistance of the surface from the plane direction was higher than that from the cross sections. Si-enrich particles were observed in the outer 4047/4343 layer, and AlFeCuMnBi phases were identified in the core 3003 layer. The galvanic coupling between the Si-enrich particle and the Al matrix accelerated the dissolution Al matrix. Originality/value This work lays the experimental foundation for corrosion mechanism of the Al alloy composite plate.

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Local electrochemical corrosion performance of nano-SiC/MAO composite coating on 6061-Al alloy

Cited by 13 publications

References 45 publications

Mechanical and corrosion properties of nano ZrC reinforced FeCrAl alloys

Mechanical and corrosion properties of nano ZrC reinforced FeCrAl alloys

Cerium dioxide modified with fumaric acid as corrosion inhibitor for epoxy coatings on Q235

Corrosion behavior of a five-layer Al alloy composite plate in NaCl solution

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