Dispersion of Complex Carbides at the Oxidation Front During the Oxidation of 9Cr-1Mo Steel -L-Coghlan et al.pdf (4.91 MB)
Dispersion of complex carbides at the oxidation front during the oxidation of 9Cr-1Mo steel
journal contribution
posted on 2019-12-16, 09:46 authored by Lawrence Coghlan, S Yan, Aya Shin, J Pearson, Mark JepsonMark Jepson, Rebecca HigginsonRebecca HigginsonTo better understand oxidation and carburisation processes taking place during exposure of 9Cr-1Mo steel experimental samples have been exposed at 600°C and 620°C to a CO2 rich atmosphere for various exposure times. Complex multi-elemental carbides form showing a range of compositions, with some showing coring/elemental segregation. Certain carbides show both M7C3 and M23C6 within a single multi-component carbide. At the oxidation front some carbides resist oxidation through growth of a Cr rich oxide shell. Carbides within both substrate and oxide have been characterised with mechanisms being proposed for the complex interactions taking place within both the substrate and oxide.
Funding
EDF Energy
History
School
- Aeronautical, Automotive, Chemical and Materials Engineering
Department
- Materials
Published in
Corrosion ScienceVolume
165Pages
108389Publisher
ElsevierVersion
- AM (Accepted Manuscript)
Rights holder
© Elsevier Ltd.Publisher statement
This paper was accepted for publication in the journal Corrosion Science and the definitive published version is available at https://doi.org/10.1016/j.corsci.2019.108389.Acceptance date
2019-12-13Publication date
2019-12-16Copyright date
2020ISSN
0010-938XPublisher version
Language
- en