Microstructure and high temperature oxidation behavior of laser cladding C22 coating

Kong, Yao; Liu, Zongde; Wang, Xinyu; Li, Jueyan; Liu, Quanbing

doi:10.1016/j.mtcomm.2022.104603

Cited by 3 publications

(2 citation statements)

References 48 publications

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“…There exists extensive literature on the mechanisms that cause damage to anticorrosive coatings. For some coatings that are stable at high temperatures, it has been found that the high-temperature stability of the coating is due to a particular microstructure or the tribological and oxidation characteristics of the coating when it is exposed to high temperatures. − The influence of a given component in the coating on the properties of the coating, such as high-temperature resistance and oxidation resistance, has also been studied. , It is hypothesized that porosity is an important factor in determining the resistance of a coating to cathode stripping . The permeability of a coating to ions, water, and oxygen depends on its porosity; materials with high porosities typically also exhibit high permeabilities, which means that water and oxygen are more likely to seep through the coating to the base material.…”

Section: Introductionmentioning

confidence: 99%

“…For some coatings that are stable at high temperatures, it has been found that the high-temperature stability of the coating is due to a particular microstructure or the tribological and oxidation characteristics of the coating when it is exposed to high temperatures. 9 − 11 The influence of a given component in the coating on the properties of the coating, such as high-temperature resistance and oxidation resistance, has also been studied. 12 , 13 It is hypothesized that porosity is an important factor in determining the resistance of a coating to cathode stripping.…”

Section: Introductionmentioning

confidence: 99%

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Service Reliability Test Method for Anticorrosion Coatings on the Compressor Outlet Pipelines of Natural Gas Stations

Nie

Deng³

et al. 2023

ACS Omega

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Compressor outlets are subject to high temperatures and vibrations; when pipelines are subject to such conditions, degradation of the anticorrosive layer on the pipeline is likely. Fusion-bonded epoxy (FBE) powder coating is the most common type of anticorrosion coatings on compressor outlet pipelines. It is necessary to study the reliability of anticorrosive layers in compressor outlet pipelines. In this paper, a service reliability test method for the corrosion-resistant coatings of compressor outlet pipelines of natural gas stations is proposed. Testing involving the simultaneous exposure of the pipeline to high temperatures and vibrations is conducted to evaluate, on a compressed timescale, the applicability and service reliability of FBE coatings. The failure mechanism of FBE coatings exposed to high temperatures and vibrations is analyzed. It is found that, due to the influence of initial imperfections in the coatings, FBE anticorrosion coatings typically do not meet the standard requirements for use in compressor outlet pipelines. After simultaneous exposure to high temperatures and vibrations, the impact resistance, abrasion resistance, and bending resistance of the coatings are found not to meet the requirements for their intended applications. It is therefore suggested that FBE anticorrosion coatings be used with extreme caution in compressor outlet pipelines.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Service Reliability Test Method for Anticorrosion Coatings on the Compressor Outlet Pipelines of Natural Gas Stations

Nie

Deng³

et al. 2023

ACS Omega

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A review on coatings deposited by extreme high-speed laser cladding: processes, materials, and properties

Liang¹,

Liao²,

Zhang³

et al. 2023

Optics & Laser Technology

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Experimental Investigation of the Effect of NiCrTi Coating on the Ash Condensation Characteristics of High-Alkali Coals

Liang,

Hu,

Ding

2024

Coatings

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To investigate the effect of NiCrTi coating on the ash condensation characteristics of high-alkali coal in Xinjiang South Mine, we first built an experimental rig for high-alkali-coal flue gas condensation and carried out experimental research on high-alkali-coal flue gas condensation. Physicochemical characterization of the initial layer of the ash deposit (initial deposit) condensation products was also carried out using XRD, SEM, and EDX. Finally, the priority of products generated on the surface of NiCrTi coating and the three-phase diagram of Na2O-SiO2-Al2O3 were analyzed by using FactSage 8.3 thermodynamic software. The results show that the condensation products in the initial deposits layer of 15CrMo alloy contain other sodium salts, such as sodium feldspar (NaAlSi3O8), NaCl, and Na2SO4, and that other protective oxides, such as Cr2O3, NiCr2O4, and TiO2, are formed on the surface of the NiCrTi coating. At the same time, the condensation experiment allows the fouling phase to be divided into four parts. Secondly, it was found that the densely flaky particles on the surface of NiCrTi coatings not only have excellent anti-fouling properties but also can effectively inhibit the penetration of other elements such as S. Finally, the reaction priority of protective oxides on NiCrTi coatings was calculated by FactSage 8.3 and found to have the following order: NiCr2O4 > Cr2O3 > TiO2. The results of this paper provide theoretical support for the development of anti-staining NiCrTi coatings.

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Microstructure and high temperature oxidation behavior of laser cladding C22 coating

Cited by 3 publications

References 48 publications

Service Reliability Test Method for Anticorrosion Coatings on the Compressor Outlet Pipelines of Natural Gas Stations

Service Reliability Test Method for Anticorrosion Coatings on the Compressor Outlet Pipelines of Natural Gas Stations

A review on coatings deposited by extreme high-speed laser cladding: processes, materials, and properties

Experimental Investigation of the Effect of NiCrTi Coating on the Ash Condensation Characteristics of High-Alkali Coals

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