The influence of a KCl-rich environment on the corrosion attack of 304 L: 3D FIB/SEM and TEM investigations

Phother-Simon, Julien; Hanif, Imran; Liske, Jesper; Jonsson, Torbjörn

doi:10.1016/j.corsci.2021.109315

Cited by 32 publications

(16 citation statements)

References 49 publications

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“…And through the oxide film to establish a gradient of oxygen pressure and chlorine partial pressure, at higher oxygen pressure chloride was oxidized and deposited continuously, showing porous and fine crystal structure. As the chloride passes through the oxide film, it is oxidized close to the surface of the oxide film and creates stress inside the oxide film, eventually leading to more severe cracking or bulging of the oxide film 32–34 . The volatile chlorides bring serious mechanical damage to the oxide film, resulting in a reduction in the protective properties of the oxide film and further acceleration of corrosion.…”

Section: Resultsmentioning

confidence: 99%

“…As the chloride passes through the oxide film, it is oxidized close to the surface of the oxide film and creates stress inside the oxide film, eventually leading to more severe cracking or bulging of the oxide film. [32][33][34] The volatile chlorides bring serious mechanical damage to the oxide film, resulting in a reduction in the protective properties of the oxide film and further acceleration of corrosion.…”

Section: Corrosion Morphology Analysis Of 316l Filter Media Under Hcl...mentioning

confidence: 99%

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Research on the gas–solid corrosion characteristics of 316L alloy fiber filter bags in halogen hydride atmosphere

Chen

Cheng

Huang

et al. 2022

Asia-Pacific J Chem Eng

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Incineration is an effective means of solid waste disposal, but the acidic components in the complex flue gas generated by incineration put pressure on the dust removal, which also puts higher requirements on the corrosion resistance of the filter media. In this work, aiming at the gas-solid corrosion characteristics of 316L alloy fiber filter bag, the corrosion behavior of 316L alloy fiber filter materials in halogen hydride atmosphere was studied using fixed-bed simulation corrosion experiments, and the mechanical properties of the filter materials after corrosion were analyzed. For the 316L alloy fiber filter bag, the influence of flue gas composition (O 2 and H 2 O) and its concentration on the corrosion characteristics was explored. The corrosion mechanism was studied by combining the microscopic morphology and element distribution of the filter material before and after corrosion. The results show that halogen hydride

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Section: Resultsmentioning

confidence: 99%

Section: Corrosion Morphology Analysis Of 316l Filter Media Under Hcl...mentioning

confidence: 99%

Research on the gas–solid corrosion characteristics of 316L alloy fiber filter bags in halogen hydride atmosphere

Chen

Cheng

Huang

et al. 2022

Asia-Pacific J Chem Eng

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“…The cross-section of selected spatter particles was made using a dual-beam FEI Versa 3D focused ion beam (FIB) milling system. The cross-section was lifted out following a conventional Transmission electron microscopy (TEM) lamella preparation method given in [14] and was further thinned down to approximately 200 nm for investigations. The FEI TITAN 80-300 keV equipped with Oxford X-sight energy dispersive X-ray (EDX) detector was operated in a Scanning TEM (STEM) mode at 300 keV and investigations were performed on the FIB prepared thin lamella of spatter particle.…”

Section: Methodsmentioning

confidence: 99%

Effect of layer thickness on spatter properties during laser powder bed fusion of Ti–6Al–4V

et al. 2023

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High layer thicknesses for laser powder bed fusion are promising for productivity increase. However, these are associated with increased process instability, spatter generation and powder degradation, crucial for alloys sensitive to oxygen. The effect of increasing layer thickness from 30 to 60 µm is studied focusing on Ti-6Al-4V spatter formation during LPBF and its characterisation, with scanning and transmission electron microscopy, combustion analysis and X-ray photoelectron spectroscopy. Results indicate that spatters are covered with a uniform Ti-Al-based oxide layer and Al-rich oxide particulates, the thickness of which is about twice that present on virgin powder. The oxygen content was about 60% higher in spatters compared to the virgin powder. The study highlights that increasing the layer thickness to 60 µm permits to reduce the total generation of spatters by ∼40%, while maintaining similar spatter characteristics and static tensile properties. Hence, this allows to increase build rate without compromising process robustness.

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“…The resulting flue gas consists mainly of water vapor, CO 2 , hydrogen chloride and especially alkali chlorides [2][3][4]. Alkali chlorides are known for their corrosiveness towards superheater tubes [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21]. The current trend in utilizing more and more agricultural and forestry residues, waste wood, and other waste fractions instead of clean biomass (e.g., wood chips and wood pellets) makes this issue even more pronounced.…”

Section: Introductionmentioning

confidence: 99%

“…The "chromate formation" mechanism [6,7,[9][10][11]13,15,17,18,20,21,27] where the alkali initiates the corrosion attack of chromia forming steels, deteriorating the protective chromium-rich layer by the formation of alkali chromate. As the primary protection is lost, the resulting secondary oxide scale formed constitutes the steel's ability to withstand further corrosion.…”

Section: Introductionmentioning

confidence: 99%

High-Temperature Corrosion of P91/T91, 304l, Sanicro 28 and Inconel 625 Exposed at 600 °C Under Continuous Kcl Deposition

Phother-Simon

Hanif

Jonsson

et al. 2023

Preprint

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The influence of a KCl-rich environment on the corrosion attack of 304 L: 3D FIB/SEM and TEM investigations

Cited by 32 publications

References 49 publications

Research on the gas–solid corrosion characteristics of 316L alloy fiber filter bags in halogen hydride atmosphere

Research on the gas–solid corrosion characteristics of 316L alloy fiber filter bags in halogen hydride atmosphere

Effect of layer thickness on spatter properties during laser powder bed fusion of Ti–6Al–4V

High-Temperature Corrosion of P91/T91, 304l, Sanicro 28 and Inconel 625 Exposed at 600 °C Under Continuous Kcl Deposition

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