Stress and Adhesion of Protective Oxide Scales on Stainless Steels and RE Effects

Kitamura, Kazuyuki; Nishiyama, Yoshitaka; Fujimoto, Shinji; Ōtsuka, N.

doi:10.2355/isijinternational.isijint-2019-037

ISIJ Int.

2019

DOI: 10.2355/isijinternational.isijint-2019-037

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Stress and Adhesion of Protective Oxide Scales on Stainless Steels and RE Effects

Kazuyuki Kitamura

Yoshitaka Nishiyama

Shinji Fujimoto

et al.

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Cited by 3 publications

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“…Similarly, TiO 2 thin layers form on the surface of titanium, enhancing its biocompatibility for medical purposes 12 . Studies also show that the formation of thin metal oxide surfaces enhances binding to other metals and insulating polymers through welding or irradiation of the surface [11][12][13][14][15] . Here, we show the role of the reactivity of these thin metal oxide films to chemically bind with TFE.In the following, we present results of our study on the adsorption of tetrafluoroethylene (TFE) on TiO 2 (110) and Cr 2 O 3 (0001).…”

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confidence: 99%

Defluorination and adsorption of tetrafluoroethylene (TFE) on TiO2(110) and Cr2O3(0001)

Gueriba

Salehuddin

Diño

et al. 2021

Sci Rep

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Here, we show that metal oxide surfaces catalyze the formation of intermediate defluorinated tetrafluoroethylene (TFE) radicals, resulting in enhanced binding on the corresponding metal oxide surfaces. We attribute the preferential adsorption and radical formation of TFE on Cr2O3(0001) relative to TiO2(110) to the low oxygen coordination of Cr surface atoms. This hints at a possible dependence of the TFE binding strength to the surface stoichiometry of metal-oxide surfaces.

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mentioning

confidence: 99%

Defluorination and adsorption of tetrafluoroethylene (TFE) on TiO2(110) and Cr2O3(0001)

Gueriba

Salehuddin

Diño

et al. 2021

Sci Rep

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Oxidation performance of TP347H superheater steel after depositing ceria-doped Cr3C2–25NiCr coatings

Singh

Chatha

Sidhu

2022

Multiscale and Multidiscip. Model. Exp. and Des.

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Effect of heating temperature on oxidation behavior of low density steels with medium manganese content

Naibing

Suhuai

et al. 2020

Metall. Res. Technol.

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The high temperature oxidation behavior of Fe–C (0.22%)–Mn (5.3%)–Al (2.5–3.2%)–Si (2.2%) low density steel was studied in the atmosphere of (2%O2 + Ar) by high temperature oxidation simulation tests. The samples were kept at 900 °C–1300 °C for 30 minutes and the morphology and the content distribution of oxide layer in the scale were characterized by scanning electron microscope combined with energy dispersive spectrometer. The results show that: when the holding temperature is below 1150 °C, the oxidized weight gain increases parabolically with time; when the temperature is maintained above 1200 °C, the oxidized weight gain increases linearly. Oxidation activation energy decreases with experimental temperature from 225.31 to 43.4 kJ/mol and due to formation of liquid oxidation products the value of Ea decreases sharply from 1100 °C.For all range of temperature the outer layer of the scale is FeOn–MnO oxide while the scale is mainly SiO2–Al2O3–FeOn–MnO near the matrix. Few variations could be observed for the morphology of scales when the heating temperature ranged from 900 °C to 1100 °C. When the heating temperature is over 1150 °C the liquid Fe2SiO4 and FeO–SiO2–MnO phases in the scale were newly formed, leading to the penetration of liquid oxide scale into the steel, which makes descaling difficult. Therefore, to facilitate the descaling operation before hot rolling, temperature should be controlled below 1150 °C in the reheating furnace.

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Stress and Adhesion of Protective Oxide Scales on Stainless Steels and RE Effects

Cited by 3 publications

References 33 publications

Defluorination and adsorption of tetrafluoroethylene (TFE) on TiO2(110) and Cr2O3(0001)

Defluorination and adsorption of tetrafluoroethylene (TFE) on TiO2(110) and Cr2O3(0001)

Oxidation performance of TP347H superheater steel after depositing ceria-doped Cr3C2–25NiCr coatings

Effect of heating temperature on oxidation behavior of low density steels with medium manganese content

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