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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, C. L. 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 > TN Mining engineering. Metallurgy | |||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | |||||||||
Library of Congress Subject Headings (LCSH): | Chromium-molybdenum steel | |||||||||
Journal or Publication Title: | Materials Science and Technology | |||||||||
Publisher: | Maney Publishing | |||||||||
ISSN: | 0267-0836 | |||||||||
Official Date: | 2015 | |||||||||
Dates: |
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Volume: | 31 | |||||||||
Number: | 9 | |||||||||
Page Range: | pp. 1042-1050 | |||||||||
DOI: | 10.1179/1743284714Y.0000000642 | |||||||||
Status: | Peer Reviewed | |||||||||
Publication Status: | Published | |||||||||
Access rights to Published version: | Restricted or Subscription Access | |||||||||
Date of first compliant deposit: | 12 March 2019 | |||||||||
Date of first compliant Open Access: | 19 March 2019 | |||||||||
RIOXX Funder/Project Grant: |
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