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Thermodynamic Insights into the Oxidation Mechanisms of CrMnFeCoNi High-Entropy Alloy Using In Situ X-ray Diffraction

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Thermodynamic Insights into the Oxidation Mechanisms of CrMnFeCoNi High-Entropy Alloy Using In Situ X-ray Diffraction. / Arshad, Muhammad; Bano, Saira; Amer, Mohamed et al.
In: Materials, Vol. 16, No. 14, 5042, 17.07.2023.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Arshad, M, Bano, S, Amer, M, Janik, V, Hayat, Q, Huang, Y, Guan, D & Bai, M 2023, 'Thermodynamic Insights into the Oxidation Mechanisms of CrMnFeCoNi High-Entropy Alloy Using In Situ X-ray Diffraction', Materials, vol. 16, no. 14, 5042. https://doi.org/10.3390/ma16145042

APA

Arshad, M., Bano, S., Amer, M., Janik, V., Hayat, Q., Huang, Y., Guan, D., & Bai, M. (2023). Thermodynamic Insights into the Oxidation Mechanisms of CrMnFeCoNi High-Entropy Alloy Using In Situ X-ray Diffraction. Materials, 16(14), Article 5042. https://doi.org/10.3390/ma16145042

Vancouver

Arshad M, Bano S, Amer M, Janik V, Hayat Q, Huang Y et al. Thermodynamic Insights into the Oxidation Mechanisms of CrMnFeCoNi High-Entropy Alloy Using In Situ X-ray Diffraction. Materials. 2023 Jul 17;16(14):5042. doi: 10.3390/ma16145042

Author

Arshad, Muhammad ; Bano, Saira ; Amer, Mohamed et al. / Thermodynamic Insights into the Oxidation Mechanisms of CrMnFeCoNi High-Entropy Alloy Using In Situ X-ray Diffraction. In: Materials. 2023 ; Vol. 16, No. 14.

Bibtex

@article{25cf1327c25c448d861661172881a9b3,
title = "Thermodynamic Insights into the Oxidation Mechanisms of CrMnFeCoNi High-Entropy Alloy Using In Situ X-ray Diffraction",
abstract = "This paper utilizes in situ X-ray diffraction (XRD) to investigate the high-temperature oxidation behaviour of CrMnFeCoNi high-entropy alloy (HEA). We found that (1) Mn is the major oxide-forming element in both vacuum and air environments, leading to the formation of non-protective oxides that deplete the bulk alloy of Mn; (2) no oxides like Cr2O3, Fe2O3, or Fe3O4 were observed during the high-temperature oxidation behaviour of CrMnFeCoNi, which contradicts some previous studies on the isothermal oxidation of CrMnFeCoNi HEA. We also analysed and compared the experimental results with thermodynamic calculations by using ThermoCalc version 2022b software following the CALPHAD method. ThermoCalc predicted spinel oxide in a vacuum environment, along with halite oxides observed in experimental results; also, in an atmospheric environment, it predicted only spinel, indicating the need for further investigation into factors to validate the thermodynamic predictions. Our study shows that the in situ HTXRD technique is a powerful tool to accurately identify time–temperature-dependent phase formation/transformation for studying oxidation behaviours and understanding oxidation mechanisms in HEAs.",
author = "Muhammad Arshad and Saira Bano and Mohamed Amer and Vit Janik and Qamar Hayat and Yuze Huang and Dikai Guan and Mingwen Bai",
year = "2023",
month = jul,
day = "17",
doi = "10.3390/ma16145042",
language = "English",
volume = "16",
journal = "Materials",
issn = "1996-1944",
publisher = "MDPI AG",
number = "14",

}

RIS

TY - JOUR

T1 - Thermodynamic Insights into the Oxidation Mechanisms of CrMnFeCoNi High-Entropy Alloy Using In Situ X-ray Diffraction

AU - Arshad, Muhammad

AU - Bano, Saira

AU - Amer, Mohamed

AU - Janik, Vit

AU - Hayat, Qamar

AU - Huang, Yuze

AU - Guan, Dikai

AU - Bai, Mingwen

PY - 2023/7/17

Y1 - 2023/7/17

N2 - This paper utilizes in situ X-ray diffraction (XRD) to investigate the high-temperature oxidation behaviour of CrMnFeCoNi high-entropy alloy (HEA). We found that (1) Mn is the major oxide-forming element in both vacuum and air environments, leading to the formation of non-protective oxides that deplete the bulk alloy of Mn; (2) no oxides like Cr2O3, Fe2O3, or Fe3O4 were observed during the high-temperature oxidation behaviour of CrMnFeCoNi, which contradicts some previous studies on the isothermal oxidation of CrMnFeCoNi HEA. We also analysed and compared the experimental results with thermodynamic calculations by using ThermoCalc version 2022b software following the CALPHAD method. ThermoCalc predicted spinel oxide in a vacuum environment, along with halite oxides observed in experimental results; also, in an atmospheric environment, it predicted only spinel, indicating the need for further investigation into factors to validate the thermodynamic predictions. Our study shows that the in situ HTXRD technique is a powerful tool to accurately identify time–temperature-dependent phase formation/transformation for studying oxidation behaviours and understanding oxidation mechanisms in HEAs.

AB - This paper utilizes in situ X-ray diffraction (XRD) to investigate the high-temperature oxidation behaviour of CrMnFeCoNi high-entropy alloy (HEA). We found that (1) Mn is the major oxide-forming element in both vacuum and air environments, leading to the formation of non-protective oxides that deplete the bulk alloy of Mn; (2) no oxides like Cr2O3, Fe2O3, or Fe3O4 were observed during the high-temperature oxidation behaviour of CrMnFeCoNi, which contradicts some previous studies on the isothermal oxidation of CrMnFeCoNi HEA. We also analysed and compared the experimental results with thermodynamic calculations by using ThermoCalc version 2022b software following the CALPHAD method. ThermoCalc predicted spinel oxide in a vacuum environment, along with halite oxides observed in experimental results; also, in an atmospheric environment, it predicted only spinel, indicating the need for further investigation into factors to validate the thermodynamic predictions. Our study shows that the in situ HTXRD technique is a powerful tool to accurately identify time–temperature-dependent phase formation/transformation for studying oxidation behaviours and understanding oxidation mechanisms in HEAs.

U2 - 10.3390/ma16145042

DO - 10.3390/ma16145042

M3 - Journal article

VL - 16

JO - Materials

JF - Materials

SN - 1996-1944

IS - 14

M1 - 5042

ER -