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Electromagnetic evaluation of the microstructure of grade 91 tubes/pipes
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Liu, Jun, Wilson, John, Strangwood, Martin, Davis, Claire, Peyton, A. J. and Parker, Jonathan (2015) Electromagnetic evaluation of the microstructure of grade 91 tubes/pipes. International Journal of Pressure Vessels and Piping, Volume 132-133 . pp. 65-71. doi:10.1016/j.ijpvp.2015.05.009
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Official URL: http://dx.doi.org/10.1016/j.ijpvp.2015.05.009
Abstract
This paper assesses the feasibility of transferring a laboratory-based electromagnetic (EM) sensor technique, which has already proved sensitive to significant (e.g. phase balance) or subtle (e.g. number density of fine precipitates) microstructural changes in steel, to non-destructive evaluation of the microstructure of power generation components such as tubes/pipes. It has been found that Grade 91 steels, in different conditions representative of service entry, thermally aged or ex-service, can be distinguished using laboratory-based measurement systems on small machined cylindrical samples as well as by an industry deployment EM sensor system on full-diameter tube samples. The measurements for the tube samples follow the same trend as the machined cylindrical samples. The results indicate an industrial deployable sensor system can be used for sorting service-exposed or mis-heat-treated/mis-manufactured Grade 91 steel tubes/pipes from the correctly heat treated service-entry ones.
| Item Type: | Journal Article | ||||||||||||
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| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) | ||||||||||||
| Divisions: | Faculty of Science > WMG (Formerly the Warwick Manufacturing Group) | ||||||||||||
| Library of Congress Subject Headings (LCSH): | Steel -- Electric properties, Tubes, Steel | ||||||||||||
| Journal or Publication Title: | International Journal of Pressure Vessels and Piping | ||||||||||||
| Publisher: | Elsevier Ltd | ||||||||||||
| ISSN: | 0308-0161 | ||||||||||||
| Official Date: | August 2015 | ||||||||||||
| Dates: |
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| Date of first compliant deposit: | 29 December 2015 | ||||||||||||
| Volume: | Volume 132-133 | ||||||||||||
| Number of Pages: | 6 | ||||||||||||
| Page Range: | pp. 65-71 | ||||||||||||
| DOI: | 10.1016/j.ijpvp.2015.05.009 | ||||||||||||
| Status: | Peer Reviewed | ||||||||||||
| Publication Status: | Published | ||||||||||||
| Access rights to Published version: | Open Access | ||||||||||||
| Funder: | Engineering and Physical Sciences Research Council (EPSRC), Electric power research institute (EPRI) | ||||||||||||
| Grant number: | EP/H023429/1 (EPSRC), UOBKTS002 (EPRI) |
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