Corrosion resistance of 45 carbon steel enhanced by laser graphene-based coating

Wu, Wanli; Chen, Ruifang; Yang, Zhiru; He, Zhiguo; Zhou, Yang; Lv, Fuzhi

doi:10.1016/j.diamond.2021.108370

Cited by 14 publications

(8 citation statements)

References 38 publications

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“…Compared with the R coat value of uncoated Ni foam, 5.27 Ω•cm 2 , larger values are obtained after coating, which indicates better corrosion resistance. 52,53 The highest value is given by the sample Ni/G0−10. Figure 5b,c is the Bode impedance plots in which the logarithm of the impedance (log(Z)) and the phase angle are plotted as a function of excitation frequency, respectively.…”

Section: Constant Potential Analysismentioning

confidence: 99%

Ni/Graphene Coating for Enhanced Corrosion Resistance of Metal Foam Flow Field in Simulated PEMFC Cathode Environment

Sun,

Hu,

Cao

et al. 2024

ACS Omega

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Metal foam flow field suffers serious corrosion issues in proton exchange membrane fuel cells due to its large surface area. Ni and Ni/graphene coatings are prepared under constant and gradient current modes, respectively, to improve the corrosion resistance. The effect of the electrodeposition current mode and the deposition mechanism is studied. Compared with Ni coating, Ni/graphene coating brings low corrosion current density and high coating resistance, effectively enhancing the stability of Ni foam in an acidic environment. Different from Ni coating with a single layer, Ni/graphene deposits have core−shell structure, with graphene coated on the surface of Ni nanoparticles. It is shown that graphene deposits cover the Ni particles during the electrodeposition, which protects nickel particles from agglomeration and forms an inert film on the surface of the porous structure.After an 8 h constant potential test, no significant pitting is observed on the surface of Ni/graphene coating, showing excellent anticorrosion performance. As to the effect of the deposition current mode, it is shown that more composite particles deposit on the upper layer under the gradient current mode, which brings denser protective film and fewer surface defects on the surface. Ni/ graphene coating electrodeposited under a gradient current mode between 0 and 10 mA•cm −2 exhibits the lowest corrosion current densities. The values at 50 and 80 °C are only 62.9 and 26.0% of those of uncoated Ni foam, respectively.

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Section: Constant Potential Analysismentioning

confidence: 99%

Ni/Graphene Coating for Enhanced Corrosion Resistance of Metal Foam Flow Field in Simulated PEMFC Cathode Environment

Sun,

Hu,

Cao

et al. 2024

ACS Omega

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“…The general application of different alloying elements such as Si can be found in numerous research works. [ 26–75 ] It has been indicated that Si affects the ability to form amorphous more than P element, [ 76 ] Li et al [ 76 ] reported an increase in the Si/P ratio raises the amorphous formation ability(AFA). AddingSior P decreases the first crystallization onset temperature, while a reduction in the Si/P ratio leads to higher thermal stability in the second crystallization.…”

Section: Introductionmentioning

confidence: 99%

Fe‐Based Amorphous Alloy Coatings: A Review

Noorbakhsh,

Ostovan,

Toozandehjani

2024

Adv Eng Mater

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Fe‐based amorphous alloy coatings (Fe‐AACs) have exhibited appropriate corrosion and wear resistance and improve the performance of material surfaces. This study summarizes the advances related to Fe‐based amorphous alloys pertaining to their chemical compositions and manufacturing processes and their associated effect on the amorphous structure, microstructure and properties. In particular, Fe‐based amorphous alloy coatings produced by laser cladding are investigated in order to study the effect of amorphous structure, partial crystallization, and composition on the microstructure, hardness, corrosion and wear resistance of these coatings. In addition, the effect of laser parameters (power and scanning speed) on the geometric and metallurgical characteristics of produced amorphous coatings are also covered.This article is protected by copyright. All rights reserved.

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“…It has good thermal conductivity and can significantly improve the cooling performance of lubricants [6]. As a coating, it can improve the corrosion resistance of metals [7]. After investigation, it is found that as a lubricating additive, the ease of the peeling of the FLG facilitates the formation of a boundary film under a frictional load, which not only prevents direct contact between friction pairs, and improves the flexibility and adaptive ability of the friction interface, but, as the FLG spacing in the boundary film is relatively large, and the van der Waals force between the layers is low, this can promote lubrication by reducing the energy barrier between layers [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Rheological and Frictional Properties of Lithium Complex Grease with Graphene Additives

et al. 2022

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Few-layer graphene (FLG) was added as a nano-additive to lithium complex grease (LCG) to explore the influence of FLG on the microstructure, viscoelasticity, friction and wear properties of LCG. Studies have found that the addition of FLG makes the microstructure of the thickener more compact, which in turn leads to an increase in the viscoelasticity of LCG. FLG additives can improve the viscosity-temperature properties of the grease and change the elastic deformation response to temperature changes. Among the temperatures selected in this article, the effect of graphene is more obvious at 70 °C. During the friction process, a proper amount of FLG can quickly form a boundary film and is not easily damaged, thereby optimizing the friction and wear performance of LCG.

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Corrosion resistance of 45 carbon steel enhanced by laser graphene-based coating

Cited by 14 publications

References 38 publications

Ni/Graphene Coating for Enhanced Corrosion Resistance of Metal Foam Flow Field in Simulated PEMFC Cathode Environment

Ni/Graphene Coating for Enhanced Corrosion Resistance of Metal Foam Flow Field in Simulated PEMFC Cathode Environment

Fe‐Based Amorphous Alloy Coatings: A Review

Rheological and Frictional Properties of Lithium Complex Grease with Graphene Additives

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