High-temperature oxidation behavior of the Crofer 22 APU steel coated with (La,Sr)(Co,Fe)O3 film prepared by pulsed laser deposition

Durda, Ewa; Przybylski, K.; Matsuda, Kenji

doi:10.1016/j.tsf.2020.138316

Cited by 7 publications

(2 citation statements)

References 32 publications

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“…It is known that the growth of oxide film follows a parabolic law, and the mass gain or scale thickness is proportional to the power of 1/2 of the oxidation time ( t 1/2 ). [ 10,27–31 ] Let the partial pressure of water vapor ( P ) in the furnace be the product of the H 2 O percent and the furnace pressure [ 32 ] and suppose the growth of oxide is assumed to be positive correlation with the soaking time as well as P of H 2 O, thickness of the oxide film dependence of the product of t 1/2 and P is shown in Figure 11 . It can be seen the thickness of total oxide film can be described as

T_{\text{total}} = 96.3 P \sqrt{t} - 3.46 P^{2} \textrm{ } t , \textrm{ } R^{2} = 0.996

…”

Section: Discussionmentioning

confidence: 99%

Influence of Furnace Pressure on the Growth Characteristic of Oxide Film on Piercing Plug Steel

Lu,

Tian

2024

steel research int.

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Different oxidation processes are carried out by using 20Cr2Ni4 piercing plug steel to study the influence of furnace pressure on the growth characteristic of oxide film in high‐temperature C2H5OH–H2O atmosphere. The results show that oxide film under different processes shows clearly two layers. The inner film is porous with the main constituents of FeO and Fe3O4 while the outer film is dense with large bubbles. The elemental Ni aggregates as a dot‐like substance in the inner oxide, where the enrichment of Cr lags behind the frontier boundary of Ni distribution. It is found that the thickness of the oxide film shows a parabolic relationship with product of the square root of oxidation time and furnace pressure. High furnace pressure can keep the pressure balance of the bubbles to swell to sufficient size, but may cause cracking during the relief process of pressure.

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T_{\text{total}} = 96.3 P \sqrt{t} - 3.46 P^{2} \textrm{ } t , \textrm{ } R^{2} = 0.996

…”

Section: Discussionmentioning

confidence: 99%

Influence of Furnace Pressure on the Growth Characteristic of Oxide Film on Piercing Plug Steel

Lu,

Tian

2024

steel research int.

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“…Figure 1 b shows the mass gain change step according to the oxidation time. Mass gain change is divided into a linear step, parabolic step, and saturation step according to oxidation time [ 9 , 10 , 11 , 12 ]. During the initial oxidation step, the mass gain over time increases according to a linear law due to sufficient inward diffusion of oxygen until the oxide film completely covers the outermost surface of the iron [ 13 ].…”

Section: Introductionmentioning

confidence: 99%

Influence of Cr Content on the High-Temperature Oxidation Behavior and Mechanism of Low-Alloy Steels

et al. 2023

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The high-temperature oxidation behavior of low-carbon steel (AISI 1015, AISI 8617, AISI 4115) was investigated over the temperature range from 600 to 1000 °C in humid air containing 25% water vapor. Mass gain of oxidation measurement was performed to study the oxidation kinetics. The microstructure, thickness, and composition of the oxide scale formed were investigated via optical microscope (OM), scanning electron microscope (SEM) equipped with an energy dispersive spectrometer (EDS), X-ray diffraction (XRD), and electron probe microanalyzer (EPMA). The oxidation process was performed from 2 to 100 min. As the oxidation time increased, the trend of mass gain per unit area switched from a linear to a parabolic law, regardless of the steel grade used. As the chromium content increased, the duration of time during which the oxidation rate followed a linear relationship decreased. In the low-alloy steel with higher chromium content, the thickness of the mixed oxide layer containing Cr increased and the oxidation rate decreased at all oxidation temperatures.

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Oxidation and Electrical Behavior of Mn–Co–ZrO2-Coated Crofer 22 APU Steel by Electrodeposition Method for SOFC Applications

Mohsenifar,

Irannejad,

Ebrahimifar

2023

Trans Indian Inst Met

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High-temperature oxidation behavior of the Crofer 22 APU steel coated with (La,Sr)(Co,Fe)O3 film prepared by pulsed laser deposition

Cited by 7 publications

References 32 publications

Influence of Furnace Pressure on the Growth Characteristic of Oxide Film on Piercing Plug Steel

Influence of Furnace Pressure on the Growth Characteristic of Oxide Film on Piercing Plug Steel

Influence of Cr Content on the High-Temperature Oxidation Behavior and Mechanism of Low-Alloy Steels

Oxidation and Electrical Behavior of Mn–Co–ZrO2-Coated Crofer 22 APU Steel by Electrodeposition Method for SOFC Applications

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