Corrosion behaviour of AISI 430 stainless steel in O2-40%H2O at 800 °C

Wiman, Panya; Thublaor, Thammaporn; Rojhirunsakool, Tanaporn; Bidabadi, Mohammad Hassan Shirani; Yang, Zhigang; Siripongsakul, Thamrongsin; Chandra-ambhorn, Walairat; Chandra-ambhorn, Somrerk

doi:10.1016/j.corsci.2022.110323

Cited by 11 publications

(6 citation statements)

References 65 publications

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“…The water vapor content in air (cathode side) is 3.6% at an ambient temperature of 25 • C, calculated using the standard thermodynamic data [45]. Moreover, it was reported that the CrO 2 (OH) 2 is the dominant volatile species than CrO 3 under the humidified oxidizing atmosphere at a temperature lower than 1500 • C [9][10][11][12]. To hasten the volatilization of Cr-species, 5% water vapor content was added to air.…”

Section: Cr-species Volatilizationmentioning

confidence: 99%

“…Under this high operating temperature, the exposure of ferritic stainless steels in the cathode and anode atmospheres results in the formation of a chromium oxide (Cr 2 O 3 ) layer at the surface. The Cr 2 O 3 can then be further oxidized to form volatile Cr species (e.g., CrO 3 and CrO 2 (OH) 2 ) over the oxide scale [9][10][11][12]. The volatile phases are induced by contamination at the cathode, known as Cr poisoning, which degrades SOFC performance [13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

“…is 88,142.50 + 38.33 T J for the standard Gibbs free energy of Reactions(5), the thermodynamic data taken from the literature[9,11,44,45]. By inserting Equations (7),(12), and (13) into Equation (6), the mass flux (J) of Cr volatilization at different water vapor contents in air can be calculated and drawn on a logarithmic scale, as shown in Figure6.…”

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confidence: 99%

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Fabrication of Mn–Co Alloys Electrodeposited on AISI 430 Ferritic Stainless Steel for SOFC Interconnect Applications

Thanedburapasup

Wetchirarat

Muengjai

et al. 2023

Metals

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Mn–Co alloys were electroplated on AISI 430 stainless steel using an electrodeposition technique with the aim to reduce oxidation and chromium volatilization. The electroplating parameters were designed to improve the coating quality. The increased current density with decreased MnSO4 content resulted in a denser coating layer. A sample coated with 0.10 M CoSO4 and 0.50 MnSO4 at 350 mA cm−2 showed the best oxidation resistance after being oxidized at 800 °C for 90 h. The X-ray diffraction (XRD) result revealed that the oxide growth on the surface of the coated samples mainly formed oxides of MnCo2O4, MnCr2O4, and Cr2O3. The chromium volatilization was evaluated by exposing the coated samples to humidified synthetic air at 800 °C for 96 h. The mass flux of Cr volatilization was on the order of 10−11 g cm−2 s−1. Furthermore, different heat treatments in O2 and CO2 atmospheres were compared. Annealing in CO2 at 800 °C for 4 h helped increase the Mn–Co coating density. The relationship between the porosity and its failure behavior was also discussed.

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Section: Cr-species Volatilizationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Fabrication of Mn–Co Alloys Electrodeposited on AISI 430 Ferritic Stainless Steel for SOFC Interconnect Applications

Thanedburapasup

Wetchirarat

Muengjai

et al. 2023

Metals

Self Cite

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“…When oxidized in wet air, water vapor can introduce more defects into the oxide layer, particularly the vacancies, which could further affect the steel oxidation mechanism. [36] Therefore, to elucidate the effect of water vapor on the oxidation behavior of 60Si2Mn spring steel, the high-temperature oxidation behavior of 60Si2Mn spring steel in dry air and wet air was investigated in this study. It is worth noting that although decarburization of 60Si2Mn spring steel also occurs during oxidation, this article focuses on the effect of water vapor in the oxidizing atmosphere on the structure of the oxide layer, so the decarburization behavior of the specimens during the experiment is not discussed in this work.…”

Section: Doi: 101002/srin202200691mentioning

confidence: 99%

High‐Temperature Oxidation of 60Si2Mn Spring Steel in Dry Air and Wet Air: Insights from an Experimental and First‐Principles Study

Zhao

Zhang

et al. 2023

steel research int.

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During the hot‐rolling process, the 60Si2Mn spring steel is exposed to both dry air and water vapor at high temperatures. However, no precise mechanism or theory is developed to explain the effect of water vapor on the oxide layer from a microscopic atomic perspective. The high‐temperature oxidation of 60Si2Mn spring steel with dry and wet air is investigated herein using a combination of experiments and first‐principles calculations. After high‐temperature oxidation in both dry and wet air, the 60Si2Mn spring steel generates a typical three‐layer structure consisting of Fe2O3, Fe3O4, and FeO + SiO2/Fe2SiO4; however, the oxide layer produced in wet air is significantly thicker. Furthermore, the phase transformation from Fe3O4 to Fe2O3 occurs in the middle Fe3O4 layer, which is associated with H protons derived from H2O molecules penetrating into oxide layers and promoting the development of Fe vacancies in the center of the tetrahedral interstices. The high porosity of the Fe3O4 layer essentially encourages Fe and O diffusion, hence enhancing the growth of the oxide layer and facilitating the transformation from Fe3O4 to Fe2O3. These findings provide a more detailed mechanistic explanation of how water vapor affects the high‐temperature oxidation of 60Si2Mn spring steel at the atomic level.

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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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Corrosion behaviour of AISI 430 stainless steel in O2-40%H2O at 800 °C

Cited by 11 publications

References 65 publications

Fabrication of Mn–Co Alloys Electrodeposited on AISI 430 Ferritic Stainless Steel for SOFC Interconnect Applications

Fabrication of Mn–Co Alloys Electrodeposited on AISI 430 Ferritic Stainless Steel for SOFC Interconnect Applications

High‐Temperature Oxidation of 60Si2Mn Spring Steel in Dry Air and Wet Air: Insights from an Experimental and First‐Principles Study

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

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