Oxidation protection of enamel coated Ni based superalloys: Microstructure and interfacial reaction

Yan, Guangxu; Yu, Wenshan; Shen, Shengping

doi:10.1016/j.corsci.2020.108760

Cited by 24 publications

(5 citation statements)

References 61 publications

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“…al. 95 evaluated how the crystallization phenomena modify the enamel corrosion resistance. Oxidation processes could favor the precipitation of complex oxides form the glass phase: oxygen diffuses via an exchange between the oxygen of amorphous silicate glass network and dissolved O 2 molecule.…”

Section: Corrosion Protection Propertiesmentioning

confidence: 99%

“…Oxidation processes could favor the precipitation of complex oxides form the glass phase: oxygen diffuses via an exchange between the oxygen of amorphous silicate glass network and dissolved O 2 molecule. 96,97 The crystallized precipitates not only consume the oxygen of amorphous silicate glass network, but also block the oxygen diffusion path, 95 improving the corrosion protection provided by the enamel coating. These works highlighted the fundamental role that enamel structure plays a role in determining the protective performances of these coatings.…”

Section: Corrosion Protection Propertiesmentioning

confidence: 99%

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Durability of vitreous enamel coatings and their resistance to abrasion, chemicals, and corrosion: a review

2020

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Vitreous enamels represent a class of coatings with different technological properties, mainly appreciated for the protection they guarantee to the covered substrates. This review introduces enamel coatings, describing their production technologies and presenting the main properties affecting the enamel’s durability. Firstly, this review article introduces the most important studies regarding the improvement in abrasion resistance, highlighting both successes and failures. Afterward, the work reveals an outlook about the resistance to chemicals, underlining the good resistance of enamels toward acidic chemicals and discussing the results of studies aimed to improve their performances toward alkaline solutions. This review also considers the corrosion protection property of enamels, highlighting the high barrier effect they provide against the absorption of aggressive substances toward metal substrates. Finally, new perspectives and possible future research paths are presented, being aware that this kind of coating offers both good product protection and functional integrity over time.

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Section: Corrosion Protection Propertiesmentioning

confidence: 99%

Section: Corrosion Protection Propertiesmentioning

confidence: 99%

Durability of vitreous enamel coatings and their resistance to abrasion, chemicals, and corrosion: a review

2020

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“…For the chromized and chromotitanized surfaces the particles formed could be Cr oxides such as Cr 2 O 3 and carbides [14]. Thus, the darker region can present the chromium-rich region (Fig.…”

Section: Semmentioning

confidence: 99%

Improvement of Corrosion Resistance of Low Carbon Steels by Surface Modification

Abobakr,

Bastweesy,

Hassan

2024

Preprint

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This research aims to investigate the corrosion resistance of surface layers of pack chromizing, titanizing, and chromtitanize low-carbon steel in a chloride-containing environment at room temperature. The parameters affecting the diffused coat, such as the coating time, coating temperature, and the effect of pack compositions, were also studied. Tests are performed to measure wet corrosion behavior using the Potentiodynamic polarization corrosion test. The microstructures and elemental analysis using a scanning electron microscope (SEM) attached to an EDX unit were obtained. Phase analysis is determined using EDX. X-ray diffraction examination indicated that in the chromizing, titanizing, and chromotitanizing processes at different coating times and temperatures of 900°C, 1000°C, and 1100°C. The outer layer is composed basically of Cr,Ti, Cr1.9Ti, FeTi, Al2O3, Cr2O3, TiO2, Cr1.36Fe0.52, (Ti0.86)3.58, and Ti0.86 phases in addition to the elemental iron. The thickness of the coating increases with the increase of the deposition time. The coating is composed of a thick outer layer and a thin inner layer. The formation of the coating depends on the inward diffusion of Cr and Ti atoms and the outward diffusion of Fe atoms. The linear polarization examination showed that the corrosion resistance of steel is enhanced by coating it in a 3.5% NaCl aqueous solution at room temperature. Potentiodynamic polarization examination showed a lower corrosion rate of the coated specimens than the uncoated ones, and the coated specimens exhibit nobler behavior than the uncoated ones in a 3.5% NaCl aqueous solution at room temperature. The corrosion resistance of the coating is proportional to the deposition time and temperature.

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“…Unfortunately, the research carried out did not address the issues of the operation of such materials at high temperatures. The study of heat resistance and corrosion resistance was carried out in [21][22][23][24],…”

Section: Introductionmentioning

confidence: 99%

Investigation of the heat resistance of a metal-glass composite material based on iron

Getmanovskiy,

Maltsev

2024

Preprint

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The article presents a study aimed at obtaining a composite antifriction material. The structure and properties of a metal-glass material based on iron, represented by VK-1 powder, were researched. The relationship between the content of the reinforcing glass filler, represented by the shards of container glass, and the heat resistance of the resulting composite was revealed. It was revealed that with an increase in the content of glass filler up to 15% of the volume, the heat resistance increases.

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Oxidation protection of enamel coated Ni based superalloys: Microstructure and interfacial reaction

Cited by 24 publications

References 61 publications

Durability of vitreous enamel coatings and their resistance to abrasion, chemicals, and corrosion: a review

Durability of vitreous enamel coatings and their resistance to abrasion, chemicals, and corrosion: a review

Improvement of Corrosion Resistance of Low Carbon Steels by Surface Modification

Investigation of the heat resistance of a metal-glass composite material based on iron

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