Effect of carbon fiber on microstructure evolution and surface properties of FeCoCrNiCu high‐entropy alloy coatings

Zhao, Ming-Chun; Liu, Dejia; Huang, Yang; Zhao, Longzhi; Tang, Yanchuang; Shen, Mingxue; Hu, Yong; Zhang, Jian; Li, Jin; Meng, Yi; Song, Lijun

doi:10.1002/maco.201911104

Cited by 12 publications

(1 citation statement)

References 37 publications

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“…In addition, carbon fibers can enhance the corrosion resistance of the coating. 102 The carbon fiber-FeCoCrNiCu HEA composite coating was prepared by laser cladding. Interestingly, the carbon fibers almost did not affect the phase structure of the coating, but they significantly influenced the corrosion behavior, especially the intergranular corrosion.…”

Section: Corrosion Research and Mechanism Of Hea Coatingsmentioning

confidence: 99%

Review—Corrosion-Resistant High-Entropy Alloy Coatings: A Review

Cheng¹,

Pan²,

Fu³

et al. 2021

J. Electrochem. Soc.

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For a long time, the corrosion problem of materials has been an essential factor in restricting high-tech and national economic development. As an effective means of corrosion protection, surface coatings have drawn extensive attention in the field of material corrosion. Performance improvement and a new composition system of high-entropy alloys (HEAs) have made HEA coatings a research hotspot. HEA coatings inherit the “four core effects” of bulk HEAs, especially high entropy and sluggish diffusion, making high-quality coatings exhibit outstanding corrosion resistance. At present, many reports have focused on the performance of HEA coatings in the field of severe corrosion environments. This article reviews the process parameters and different element contents on the corrosion resistance of HEA coatings in recent years. This paper describes the advantages and excellent corrosion resistance of HEA coatings, including the preparation methods and classification of HEA coatings. Moreover, exploration of the corrosion behavior and the mechanism of HEA coatings are described, and the influence of passivation behavior and microstructure change on the corrosion resistance of HEA coatings are discussed. Finally, the prospect of research on corrosion-resistant HEA coatings is proposed, and possible future research directions and ideas are suggested.

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Section: Corrosion Research and Mechanism Of Hea Coatingsmentioning

confidence: 99%

Review—Corrosion-Resistant High-Entropy Alloy Coatings: A Review

Cheng¹,

Pan²,

Fu³

et al. 2021

J. Electrochem. Soc.

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Microstructure and corrosion behavior of FeCrNiMnMo_x high‐entropy alloys fabricated by the laser surface remelting

Hu¹,

Liu²,

Li³

2020

Materials & Corrosion

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In this study, an Nd:YAG laser was used to carry out laser surface remelting treatment on FeCrNiMnMo x (x = 0, 0.5, 1) alloys. A study was conducted on the potential impact of Mo on the microstructure and corrosion resistance of the laser-remelted layer. According to the research results, FeCrNiMnMo x alloys were more effective in refining the dendrites, compared with the matrix, whereas the FeCrNiMn alloys' remelted layer exhibited an almost single face-centered cubic (FCC) structure. In comparison, FeCrNiMnMo 0.5 and FeCrNiMnMo 1 alloys' remelted layer displayed the FCC and σ phase. In addition, the dendrite crystals' microstructure can be clearly refined by Mo alloying. Mo is effective in improving the corrosion resistance of the FeCrNiMnMo x alloys' remelted layer in 3.5% NaCl solution. The pitting resistance of Mo-containing-remelted layers is significantly higher, compared with Mo-free alloy's remelted layer, and the FeCrNiMnMo 0.5remelted layer shows the most satisfactory corrosion resistance. As revealed by X-ray photoelectron spectroscopy analyses, the addition of molybdenum promotes the generation of Cr 2 O 3 and enhances the corrosion resistance of the remelted layer.

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Effect of WC content on microstructure and properties of CrFeMoNiTi(WC)_x high‐entropy alloys composite coatings prepared by selective laser melting

Desheng

Chen

et al. 2022

Materials & Corrosion

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To improve the surface properties of Q235 carbon steels, CrFeMoNiTi(WC) x high-entropy alloy composite coatings were fabricated via selective laser melting. The microstructure, wear resistance, and corrosion resistance of the composite coatings were studied. Spherical or near-spherical tungsten carbide (WC) particles are dispersively distributed in the coatings, resulting in the appearance of obvious WC and TiW 2 C phases. And the composite coatings mainly consist of body-centered cubic (BCC) and face-centered cubic (FCC).When x ≤ 0.3, the addition of WC enhances the BCC diffraction peak. Microhardness of the composite coatings with WC increases and is much higher than that of the substrate (280.6 HV 0.1 ). The hardness of the CrFeMoNiTi(WC) 0.3 (1005.1 HV 0.1 ) is the highest among the composite coatings. The retained WC particles and BCC acted as load bearers during the friction process, which reduces the wear loss of the composite coating. Also, the anodic protection caused by the corrosion-resistant WC particles and BCC greatly improves the ability of the composite coatings to resist NaCl attack. Hence, CrFeMoNiTi(WC) 0.3 exhibited the optimum wear resistance and corrosion resistance.

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Effect of carbon fiber on microstructure evolution and surface properties of FeCoCrNiCu high‐entropy alloy coatings

Cited by 12 publications

References 37 publications

Review—Corrosion-Resistant High-Entropy Alloy Coatings: A Review

Review—Corrosion-Resistant High-Entropy Alloy Coatings: A Review

Microstructure and corrosion behavior of FeCrNiMnMo_x high‐entropy alloys fabricated by the laser surface remelting

Effect of WC content on microstructure and properties of CrFeMoNiTi(WC)_x high‐entropy alloys composite coatings prepared by selective laser melting

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Effect of carbon fiber on microstructure evolution and surface properties of FeCoCrNiCu high‐entropy alloy coatings

Cited by 12 publications

References 37 publications

Review—Corrosion-Resistant High-Entropy Alloy Coatings: A Review

Review—Corrosion-Resistant High-Entropy Alloy Coatings: A Review

Microstructure and corrosion behavior of FeCrNiMnMox high‐entropy alloys fabricated by the laser surface remelting

Effect of WC content on microstructure and properties of CrFeMoNiTi(WC)x high‐entropy alloys composite coatings prepared by selective laser melting

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Product

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Microstructure and corrosion behavior of FeCrNiMnMo_x high‐entropy alloys fabricated by the laser surface remelting

Effect of WC content on microstructure and properties of CrFeMoNiTi(WC)_x high‐entropy alloys composite coatings prepared by selective laser melting