Magnetic sensing for microstructural assessment of power station steels: differential permeability and magnetic hysteresis

Karimian, N., Wilson, J. W., Yin, W., Liu, J. ORCID: https://orcid.org/0000-0002-4549-2833, Davis, C. L. and Peyton, A. J. 2013. Magnetic sensing for microstructural assessment of power station steels: differential permeability and magnetic hysteresis. Presented at: 17th Sensors and Their Applications Conference, Dubrovnik, Croatia, 16-18 September 2013. Journal of Physics: Conference Series. , vol.450 IOP Publishing: Conference Series, 10.1088/1742-6596/450/1/012042

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Abstract

Failure of power station steel components can have severe economic impacts and also present significant risks to life and the environment. Currently components are inspected during costly shut-downs as no in-situ technique exists to monitor changes in microstructure of in-service steel components. Electromagnetic inspection has the potential to provide information on microstructure changes in power station steels in-situ. In this paper, tests have been carried out on pipe and tube samples in different microstructural conditions, using a lab-based closed magnetic circuit and impedance measurement systems. EM properties have been identified with correlations to material properties, which can quantify degradation in-situ and at elevated temperatures.

Item Type:	Conference or Workshop Item (Paper)
Date Type:	Published Online
Status:	Published
Schools:	Engineering
Publisher:	IOP Publishing: Conference Series
ISSN:	1742-6588
Date of Acceptance:	7 June 2013
Last Modified:	09 Nov 2022 09:54
URI:	https://orca.cardiff.ac.uk/id/eprint/137549

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