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Title:High-temperature oxidation of boiler steels at 650 °C
Authors:ID Burja, Jaka (Author)
ID Šetina, Barbara (Author)
ID Žužek, Borut (Author)
ID Balaško, Tilen (Author)
Files:.pdf PDF - Presentation file, download (12,99 MB)
MD5: BAA6936E986CFEF5B5F3232420F0E0EE
 
URL URL - Source URL, visit https://www.mdpi.com/2075-4701/13/11/1887
 
Language:English
Typology:1.01 - Original Scientific Article
Organization:Logo IMT - Institute of Metals and Technology
Abstract: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, in- cluding 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.
Keywords:high-temperature oxidation, thermogravimetric analysis, kinetics, CALPHAD, boiler steels, SEM, EBSD
Publication status:Published
Publication version:Version of Record
Publication date:13.11.2023
Publisher:MDPI
Year of publishing:2023
Number of pages:str. 1-16
Numbering:Vol. 13, iss. 11
Source:Švica
PID:20.500.12556/DiRROS-18018 New window
UDC:669
ISSN on article:2075-4701
DOI:10.3390/met13111887 New window
COBISS.SI-ID:172044803 New window
Copyright:© 2023 by the authors
Note:Article no.: 1887;
Publication date in DiRROS:26.01.2024
Views:937
Downloads:397
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BURJA, Jaka, ŠETINA, Barbara, ŽUŽEK, Borut and BALAŠKO, Tilen, 2023, High-temperature oxidation of boiler steels at 650 °C. Metals [online]. 2023. Vol. 13, no. 11, p. 1–16. [Accessed 3 April 2025]. DOI 10.3390/met13111887. Retrieved from: https://dirros.openscience.si/IzpisGradiva.php?lang=eng&id=18018
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Record is a part of a journal

Title:Metals
Shortened title:Metals
Publisher:MDPI AG
ISSN:2075-4701
COBISS.SI-ID:15976214 New window

Document is financed by a project

Funder:ARRS - Slovenian Research Agency
Project number:P2-0050
Name:Kovinski materiali in tehnologije

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

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