High-Temperature Oxidation of Boiler Steels at 650 °C
This study presents a comprehensive investigation of the formation, composition and behaviour of oxide layers during the high-temperature oxidation of four different steel alloys (16Mo3, 13Cr, T24 and P91) at a uniform temperature of 650 °C. The study is aimed at assessing the oxidation damage due t...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-11-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/13/11/1887 |
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| author | Jaka Burja Barbara Šetina Batič Borut Žužek Tilen Balaško |
| author_facet | Jaka Burja Barbara Šetina Batič Borut Žužek Tilen Balaško |
| author_sort | Jaka Burja |
| collection | DOAJ |
| description | This study presents a comprehensive investigation of the formation, composition and behaviour of oxide layers during the high-temperature oxidation of four different steel alloys (16Mo3, 13Cr, T24 and P91) at a uniform temperature of 650 °C. The study is aimed at assessing the oxidation damage due to short-term overheating. The research combines CALPHAD (CALculation of PHAse Diagrams) calculations, thermogravimetric analysis (TGA) and advanced microscopy techniques, including scanning electron microscopy (SEM) and electron backscatter diffraction (EBSD), to elucidate the complex mechanisms controlling oxidation kinetics and oxide layer development. CALPHAD calculations were used to determine the thermodynamically stable phases for each steel type at 650 °C and different oxygen activities. The results showed different phase compositions, highlighting the importance of the chromium content in steel for the formation of oxide layers. The different oxidation kinetics and oxide layer compositions are presented and associated with the increased risk of material degradation due to overheating. These results have significant implications for industrial applications, mainly the susceptibility to oxidation of low-alloyed steels like 16Mo3 and 13 Cr and contribute to a deeper understanding of oxidation processes in steels. |
| first_indexed | 2024-03-09T16:37:34Z |
| format | Article |
| id | doaj.art-cbd5446e99174c8cbdfe164bb8d69a12 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-09T16:37:34Z |
| publishDate | 2023-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-cbd5446e99174c8cbdfe164bb8d69a122023-11-24T14:55:58ZengMDPI AGMetals2075-47012023-11-011311188710.3390/met13111887High-Temperature Oxidation of Boiler Steels at 650 °CJaka Burja0Barbara Šetina Batič1Borut Žužek2Tilen Balaško3Faculty of Natural Sciences and Engineering, University of Ljubljana, Aškerčeva cesta 12, 1000 Ljubljana, SloveniaInstitute of Metals and Technology, Lepi pot 11, 1000 Ljubljana, SloveniaInstitute of Metals and Technology, Lepi pot 11, 1000 Ljubljana, SloveniaFaculty of Natural Sciences and Engineering, University of Ljubljana, Aškerčeva cesta 12, 1000 Ljubljana, SloveniaThis study presents a comprehensive investigation of the formation, composition and behaviour of oxide layers during the high-temperature oxidation of four different steel alloys (16Mo3, 13Cr, T24 and P91) at a uniform temperature of 650 °C. The study is aimed at assessing the oxidation damage due to short-term overheating. The research combines CALPHAD (CALculation of PHAse Diagrams) calculations, thermogravimetric analysis (TGA) and advanced microscopy techniques, including scanning electron microscopy (SEM) and electron backscatter diffraction (EBSD), to elucidate the complex mechanisms controlling oxidation kinetics and oxide layer development. CALPHAD calculations were used to determine the thermodynamically stable phases for each steel type at 650 °C and different oxygen activities. The results showed different phase compositions, highlighting the importance of the chromium content in steel for the formation of oxide layers. The different oxidation kinetics and oxide layer compositions are presented and associated with the increased risk of material degradation due to overheating. These results have significant implications for industrial applications, mainly the susceptibility to oxidation of low-alloyed steels like 16Mo3 and 13 Cr and contribute to a deeper understanding of oxidation processes in steels.https://www.mdpi.com/2075-4701/13/11/1887high-temperature oxidationthermogravimetric analysiskineticsCALPHADboiler steelsSEM |
| spellingShingle | Jaka Burja Barbara Šetina Batič Borut Žužek Tilen Balaško High-Temperature Oxidation of Boiler Steels at 650 °C Metals high-temperature oxidation thermogravimetric analysis kinetics CALPHAD boiler steels SEM |
| title | High-Temperature Oxidation of Boiler Steels at 650 °C |
| title_full | High-Temperature Oxidation of Boiler Steels at 650 °C |
| title_fullStr | High-Temperature Oxidation of Boiler Steels at 650 °C |
| title_full_unstemmed | High-Temperature Oxidation of Boiler Steels at 650 °C |
| title_short | High-Temperature Oxidation of Boiler Steels at 650 °C |
| title_sort | high temperature oxidation of boiler steels at 650 °c |
| topic | high-temperature oxidation thermogravimetric analysis kinetics CALPHAD boiler steels SEM |
| url | https://www.mdpi.com/2075-4701/13/11/1887 |
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