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Microstructural analysis of service exposed IBN1 MARBN steel boiler tubing
conference contribution
posted on 2019-07-18, 10:35 authored by Scott Lockyer, Mark JepsonMark Jepson, Xu Xu, Will PhilpottExtensive research and development has been undertaken in the UK on MarBN steels. These were
first proposed by Professor Fujio Abe from NIMS in Japan. Within the UK, progress has been
made towards commercialisation of MarBN-type steel through a series of Government funded
industrial collaborative projects (IMPACT, IMPEL, INMAP and IMPULSE). As part of the
IMPACT project, which was led by Uniper Technologies, boiler tubes were manufactured from
the MarBN steel developed within the project, IBN1, and installed on the reheater drums of Units
2 and 3 of Ratcliffe-on-Soar Power Station. The trial tubes were constructed with small sections
of Grade 91 tubing on either side of the IBN1 to allow direct comparison after the service
exposure. This is the world’s first use of a MarBN steel on a full-scale operational power plant. In
September 2018 the first tube was removed having accumulated 11,727 hours operation and 397
starts. This paper reports microstructural and oxidation analysis, that has been undertaken by
Loughborough University as part of IMPULSE project, and outlines future work to be carried out.
Funding
Loughborough University authors would like to thank the EPSRC and Innovate UK for funding through, IMPULSE - Advanced Industrial Manufacture of Next-Generation MARBN Steel for Cleaner Fossil Plant (Grant number: EP/N509942/1) and InnovateUK (formerly Technology Strategy Board) for funding our involvement in the IMPACT project (Project Number TP11/CAT/6/I/BP074G).
History
School
- Aeronautical, Automotive, Chemical and Materials Engineering
Department
- Materials
Published in
Joint EPRI-123HiMAT International Conference on Advances in High Temperature MaterialsCitation
LOCKYER, S. ... et al., 2019. Microstructural analysis of service exposed IBN1 MARBN steel boiler tubing. Presented at the Joint EPRI-123HiMAT International Conference on Advances in High Temperature Materials, Nagasaki, Japan, 21-25th October.Publisher
© Electric Power Research Institute (EPRI)Version
- AM (Accepted Manuscript)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Acceptance date
2019-07-12Publication date
2019Notes
This paper is in closed access.Publisher version
Language
- en