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Non-destructive characterisation of N/Al level in P91 steels using electromagnetic sensors
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Liu, Jun, Strangwood, M., Davis, Claire and Parker, J. (2015) Non-destructive characterisation of N/Al level in P91 steels using electromagnetic sensors. Materials Science and Technology, 31 (9). pp. 1042-1050. doi:10.1179/1743284714Y.0000000642 ISSN 0267-0836.
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Official URL: http://dx.doi.org/10.1179/1743284714Y.0000000642
Abstract
P91 steels with different N/Al ratios short term tempered or long term aged at a series of temperatures have been characterised using a multifrequency electromagnetic sensor. It was found that the low frequency inductance value is sensitive to the intralath MX precipitates that determine the mean free path for domain wall motion and hence the initial relative permeability of the steels. The electromagnetic sensor is capable of separating P91 steels with low N/Al ratio in the service entry or early service state. In contrast, the hardness measurements were found to be insensitive to the N/Al ratio for the short term tempered samples.
Item Type: | Journal Article | ||||||
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Subjects: | T Technology > TS Manufactures | ||||||
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||||
Library of Congress Subject Headings (LCSH): | Steel -- Effect of temperature on | ||||||
Journal or Publication Title: | Materials Science and Technology | ||||||
Publisher: | Maney Publishing | ||||||
ISSN: | 0267-0836 | ||||||
Official Date: | June 2015 | ||||||
Dates: |
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Volume: | 31 | ||||||
Number: | 9 | ||||||
Number of Pages: | 9 | ||||||
Page Range: | pp. 1042-1050 | ||||||
DOI: | 10.1179/1743284714Y.0000000642 | ||||||
Status: | Peer Reviewed | ||||||
Publication Status: | Published | ||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||
Date of first compliant deposit: | 29 December 2015 | ||||||
Date of first compliant Open Access: | 29 December 2015 | ||||||
Funder: | Engineering and Physical Sciences Research Council (EPSRC), Electric power research institute (EPRI) | ||||||
Grant number: | UOBKTS002 (EPRI) |
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