High temperature oxidation behaviour of Fe–15.7 wt.% Cr–8.5 wt.% Mn in oxygen without and with water vapour at 700 ºC

Chandra-ambhorn, Somrerk; Saranyachot, Phichai; Thublaor, Thammaporn

doi:10.1016/j.corsci.2018.11.023

Cited by 24 publications

(12 citation statements)

References 47 publications

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“…6.4 in Chapter 6. The similar trend was also observed for the thermal scale on Fe-15.7Cr-8.5Mn formed in humidified oxygen compared with the one formed in oxygen [33]. The better adhesion indicates the possibility that the hydroxyl ion diffuses inwardly to form oxide at the metal/scale interface and therefore promotes the scale adhesion.…”

Section: Defect Structural Analysis Whensupporting

confidence: 77%

CHAPTER 5 Effect of Water Vapour on the High Temperature Oxidation of Stainless Steels

Chandra-ambhorn

Wongpromrat

Thublaor

et al. 2020

SSP

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This chapter primarily reviews the nature of water vapour when it presents in bulk gas. The change in a ratio between water vapour and corresponding dissociated hydrogen, which determine the thermodynamic stability of the oxide formation, is analysed when the oxidation kinetics are linear and parabolic. When water vapour reaches the solid/gas interface, chromium species volatilisation and oxidation controlled by surface reaction can occur. The adsorbed water vapour can be further incorporated into the oxide possibly in the form of hydrogen defects. The role of these defects on altering the defect structure of the oxide is discussed. Finally, characteristics of the oxide scale on stainless steels formed in the atmosphere containing water vapour are reviewed.

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Section: Defect Structural Analysis Whensupporting

confidence: 77%

CHAPTER 5 Effect of Water Vapour on the High Temperature Oxidation of Stainless Steels

Chandra-ambhorn

Wongpromrat

Thublaor

et al. 2020

SSP

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“…This finding suggests an exacerbation of coating oxidation during thermal corrosion, spanning from 10 to 100 h. The TiC particles in the coating undergo decarburization reactions at high temperatures, leading to the continuous diffusion of the internal C element to the surface and thereby elevating the surface C elemental content [30,31]. Concurrently, an increase in the thickness of the coating oxide layer is accompanied by a decline in the Cr diffusion rate within the oxide layer [32]. Simultaneously, the reduction in the oxygen partial pressure within the coating stimulates the formation of a more stable oxide layer like the Cr 2 O 3 layer, on the inner side of the oxide layer, thereby reducing the surface Cr content accordingly.…”

Section: Cross-sectional Morphology and Phase Analysis Of Coating Aft...mentioning

confidence: 98%

“…and thereby elevating the surface C elemental content [30,31]. Concurrently, an increase in the thickness of the coating oxide layer is accompanied by a decline in the Cr diffusion rate within the oxide layer [32]. Simultaneously, the reduction in the oxygen partial pressure within the coating stimulates the formation of a more stable oxide layer like the Cr2O3 layer, on the inner side of the oxide layer, thereby reducing the surface Cr content accordingly.…”

Section: Surface Morphology and Phase Analysis Of Coating After Hot C...mentioning

confidence: 99%

Insight into the Hot Corrosion Behavior of FeMnCrSi/TiC Coatings at 900 °C

Tang,

Li,

Huang

et al. 2024

Metals

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This study explores the deposition of an Fe-MnCrSi/TiC coating on 45 steel surfaces using high-velocity arc spraying technology, examining the microstructure and hot corrosion behavior of the resultant layer. The microstructure of the FeMnCrSi/TiC coating primarily consists of an α-Fe (BCC) solid solution, composed of Fe, Mn, Cr, Si, C, and other elements, with a minor presence of β-Fe (FCC) solid-solution phase and unmelted TiC particles. Following 100 h of cyclic 900 °C hot corrosion, Mn on the coating surface preferentially oxidizes, forming a manganese-rich oxide layer. This process reduces the oxygen partial pressure (O2) within the coating, prompting the formation of a dense Cr2O3 layer on the inner side of the oxide layer. Concurrently, the rapid diffusion of Mn and Cr elements triggers the generation of Mn- and Cr-deficient regions at the metal/oxide layer interface, inducing the transformation of the coated metal primary matrix from an FCC + BCC dual phase to an α-Fe (BCC) single phase. After the reaction, the hot corrosion weight gain of the coating reached 12.43 mg/cm2, approximately one-fourteenth of the weight gain of the 45 steel substrates. This weight gain adheres to the parabolic law, suggesting that the FeMnCrSi/TiC coating exhibits excellent corrosion resistance under the given conditions.

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“…The adhesion of oxide scale on steel substrate can be assessed in many ways, such as the indentation test [23], the inverted blister test [24,25], the bending test [26][27][28][29] or the tensile test [30][31][32][33][34]. Our group developed the tensile test [35][36][37][38][39] to evaluate the scale adhesion of low carbon steels [15,19,22,[35][36][37][38][39] and stainless steels [40][41][42]. It will be used in this study.…”

Section: Introductionmentioning

confidence: 99%

Formation of thermal oxide scale and its adhesion to hot-rolled low carbon steels with different final strip thicknesses

et al. 2022

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Currently, the steelmaking industry produces iron oxide waste scale resulting in pollution to the environment. It was necessary to have a good understanding of the composition, characteristics and properties of the oxide scale. This study focused on the formation of scale and its adhesion to the hot-rolled steel strip with different thicknesses. The oxide scale formed on an as-received hot-rolled steel strip was investigated by X-ray diffraction (XRD), scanning electron microscopy equipped with energy dispersive X-ray (SEM-EDS). Magnetite, hematite and iron were found from the XRD results of all samples, which had the thickness strip of 8, 10 and 12 mm. The scale was thinner for the thinner strip. The adhesion test was conducted by a tensile testing machine adapted with an observation set. The strain initiating the first spallation and mechanical adhesion energy was lowest for the sample with the highest thickness (12 mm). These results indicate that the waste scale produced by hot rolled steel industry can be controlled by the final strip thickness. There was a need to control the scale of waste in a reasonable way to protect the environment.

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High temperature oxidation behaviour of Fe–15.7 wt.% Cr–8.5 wt.% Mn in oxygen without and with water vapour at 700 ºC

Cited by 24 publications

References 47 publications

CHAPTER 5 Effect of Water Vapour on the High Temperature Oxidation of Stainless Steels

CHAPTER 5 Effect of Water Vapour on the High Temperature Oxidation of Stainless Steels

Insight into the Hot Corrosion Behavior of FeMnCrSi/TiC Coatings at 900 °C

Formation of thermal oxide scale and its adhesion to hot-rolled low carbon steels with different final strip thicknesses

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