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Magnetic characterisation of grain size and precipitate distribution by major and minor BH loop measurements
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Liu, Jun, Wilson, John, Davis, Claire and Peyton, A. J. (2019) Magnetic characterisation of grain size and precipitate distribution by major and minor BH loop measurements. Journal of Magnetism and Magnetic Materials, 481 (1). pp. 55-67. doi:10.1016/j.jmmm.2019.02.088 ISSN 0304-8853.
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Official URL: https://doi.org/10.1016/j.jmmm.2019.02.088
Abstract
Grain size and precipitates have a significant effect on the mechanical properties of steels and it is desirable to be able to characterise these in a non-destructive manner. Grain and precipitate sizes and their spatial distributions in both an extra-low-carbon steel and a laboratory model steel have been individually varied and compared with a variety of characteristic magnetic parameters measured from major and minor magnetisation loops. These magnetic parameters are shown to be very sensitive to grain size distribution when there are no precipitates within the grains. However, the magnetic parameters exhibit complex behaviours with precipitate size distribution, which is linked to a critical precipitate size for effective pinning and another critical precipitate size for strongest pinning to domain walls. The interaction between grain size and precipitate distribution effects on the minor loop properties in the studied steels are discussed.
Item Type: | Journal Article | ||||||||||||
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Subjects: | T Technology > TA Engineering (General). Civil engineering (General) | ||||||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||||||||||
Library of Congress Subject Headings (LCSH): | Ferritic steel -- Magnetic properties | ||||||||||||
Journal or Publication Title: | Journal of Magnetism and Magnetic Materials | ||||||||||||
Publisher: | Elsevier Science BV | ||||||||||||
ISSN: | 0304-8853 | ||||||||||||
Official Date: | 1 July 2019 | ||||||||||||
Dates: |
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Volume: | 481 | ||||||||||||
Number: | 1 | ||||||||||||
Page Range: | pp. 55-67 | ||||||||||||
DOI: | 10.1016/j.jmmm.2019.02.088 | ||||||||||||
Status: | Peer Reviewed | ||||||||||||
Publication Status: | Published | ||||||||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||||||||
Date of first compliant deposit: | 6 March 2019 | ||||||||||||
Date of first compliant Open Access: | 8 March 2019 | ||||||||||||
RIOXX Funder/Project Grant: |
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