High-Temperature Oxidation of FeCrAl Alloys: The Effect of Mg Incorporation into the Alumina Scale

Dimyati, Arbi; Penkalla, H. J.; Untoro, Pudji; Naumenko, D.; Quadakkers, Willem J.

doi:10.3139/146.030180

Cited by 18 publications

(10 citation statements)

References 18 publications

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“…From the characteristic of parabolic kinetics where the mass gain is proportional to the square root of time, it is obvious that the oxide formation on both sample oxygen inward diffusion driven process. This stands in agreement with the mechanism of high-temperature oxidation of FeCr alloy that is widely accepted to be the diffusion of oxygen anions through the Fe 2 O 3 lattice [14]. The metal cations transport on the other hand is fully inhibited.…”

Section: Methodssupporting

confidence: 76%

Microstructure and oxidation behavior of high strength steel AISI 410 implanted with nitrogen ion

Bandriyana¹,

Ismoyo²,

Sujitno

et al. 2016

AIP Conference Proceedings

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Abstract. Surface treatment by implantation with nitrogen-ion was performed on the commercial feritic high strength steel AISI 410 which is termed for high temperature applications. The aim of this research was focused on the surface modification to improve its high temperature oxidation property in the early stages. Ion implantation was carried out at acceleration energy of 100 KeV and ion current 10 mA for 30, 60 and 90 minutes. The samples were subjected to the high temperature oxidation test by means of thermogravimetry in a magnetic suspension balance (MSB) at 500 o C for 5 hours. The scanning electron microscopy (SEM), Xray diffraction spectrometry (XRD) and Vickers Hardness measurement were used for sample characterization. The formation of ferro-nitride phase after implantation did not occur, however a thin layer considered to contain nitrogen interstitials was detected. The oxidation of both samples before and after implantation followed parabolic kinetics indicating inward growth of oxide scale characteristically due to diffusion of oxygen anions towards matrix surface. After oxidation test relativelly stable oxide scales were observed. Oxidation rates decreased proportionally with the increasing of implantation time due to the formation of oxide layer which is considered to be effectiv inhibitor for the oxygen diffusion.

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Section: Methodssupporting

confidence: 76%

Microstructure and oxidation behavior of high strength steel AISI 410 implanted with nitrogen ion

Bandriyana¹,

Ismoyo²,

Sujitno

et al. 2016

AIP Conference Proceedings

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“…The very low corrosion rate of 316L-ODS steel at the beginning of the oxidation can be considered caused by the effect of zirconia dispersed that caused grain coarsening, which decreases the number of oxide crystallites formed the possibilities of oxygen diffusion channelling between the oxide grains. This phenomenon has also been previously observed and reported by Dimyati et al on the hightemperature FeCrAl alloys [17]. The irregularities of the relative peaks of the mass gain indicate local flacking of small portions of an oxide layer, which quickly reheals and is renewed.…”

Section: Crystal Structuresupporting

confidence: 84%

Microstructure and Oxidation Behavior of the Oxide Dispersion Strengthened Stainless Steel 316l With Zirconia Dispersion

Ahda

Sujatno

Hairani

et al. 2023

Majalah Ilmiah Pengkajian Industri

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Synthesis of the oxide dispersion sODS steels was performed by dispersing 0.5 wt % zirconia to the stainless steel SS 316L by the powder metallurgy method. The ball milling process was carried out for pre-alloying the elements continued with the consolidation performed by the compaction and sintering process using the APS (Arc Plasma Sintering). Analysis of microstructure was performed by observing the morphology, identify the phase and evaluate the oxide distribution. An oxidation test was carried out at 700oC for 8 hours using the MSB (Magnetic Suspension Balanced) apparatus to evaluate the primary oxidation curve. The same grain fineness consists of 2 dominant phases, so the presence of an austenitic phase and a ferritic phase has been analyzed from the X-Ray Diffraction pattern. The homogeneous distribution of zirconia was observed, followed by improvements in mechanical properties, which could be identified by hardness testing. The parabolic phenomenon oxidation curve was explained by the excellent high-temperature oxidation behaviour of the ODS steel, followed by the formation of ZrO2 oxide protective thin layer.

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“…Measurements were performed between 20°Ͻ 2 Ͻ 60°͑incidence angle = 0.2°, step size = 0.03°͒. PDF numbers for the reference data were 46 Electron microscopy analysis.-The samples were preexamined by using a Leo Ultra 55 FEG scanning electron microscope ͑SEM͒ and an FEI Quanta 200 FEG environmental SEM both equipped with an Oxford INCA energy-dispersive X-ray ͑EDX͒ analysis system, which has a software for evaluation and quantification of both bulk and thin foil specimens ͑Ͻ100 nm͒. Scanning transmission electron microscopy ͑STEM͒ of thin foil specimens was carried out in the Leo Ultra microscope at 30 kV.…”

Section: Methodsmentioning

confidence: 99%

Microstructural Investigation of the Initial Oxidation of the FeCrAlRE Alloy Kanthal AF in Dry and Wet O[sub 2] at 600 and 800°C

Canovic¹,

Engkvist

Liu³

et al. 2010

J. Electrochem. Soc.

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The FeCrAlRE (where RE is reactive element) alloy Kanthal AF was exposed isothermally at 600 and 800°C for 72 h in dry normalO2 and in normalO2 with 10 vol % normalH2O . The mass gains were 3–5 times higher at the higher temperature. The presence of water vapor increased the oxidation rate at 800°C , while no significant effect was observed at 600°C . A thin two-layered oxide formed at 600°C : an outer (Fe,Cr)2normalO3 corundum-type oxide, containing some Al, and an inner, probably amorphous, Al-rich oxide. At 800°C a two-layered oxide formed in both environments. The inner layer consisted of inward grown α-Al2normalO3 . In dry normalO2 the originally formed outward grown γ-Al2normalO3 had transformed to α-Al2normalO3 after 72 h. Water vapor stabilized the outward grown γ-Al2normalO3 and hence no transformation occurred after 72 h in humid environment. RE-rich oxide particles with varying composition (Y, Zr, and Ti) were distributed in the base oxide at both temperatures and in both environments. The RE-rich particles were separated from the alloy substrate by a layer of Al-rich oxide. At 800°C the Y-rich RE particles were surrounded by thick oxide patches in both dry and humid normalO2 .

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High-Temperature Oxidation of FeCrAl Alloys: The Effect of Mg Incorporation into the Alumina Scale

Cited by 18 publications

References 18 publications

Microstructure and oxidation behavior of high strength steel AISI 410 implanted with nitrogen ion

Microstructure and oxidation behavior of high strength steel AISI 410 implanted with nitrogen ion

Microstructure and Oxidation Behavior of the Oxide Dispersion Strengthened Stainless Steel 316l With Zirconia Dispersion

Microstructural Investigation of the Initial Oxidation of the FeCrAlRE Alloy Kanthal AF in Dry and Wet O[sub 2] at 600 and 800°C

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