Measurement of microstructure changes in 9Cr-1Mo and 2.25Cr-1Mo steels using an electromagnetic sensor

Jun Liu; Xinjiang Hao; Lei Zhou; Martin Strangwood; Claire Davis; AJ Peyton

doi:10.1016/j.scriptamat.2011.11.032

Measurement of microstructure changes in 9Cr-1Mo and 2.25Cr-1Mo steels using an electromagnetic sensor

Jun Liu, Xinjiang Hao, Lei Zhou, Martin Strangwood, Claire Davis, AJ Peyton

Metallurgy and Materials

Research output: Contribution to journal › Article

20 Citations (Scopus)

Abstract

This paper presents results from a multi-frequency electromagnetic sensor used to characterize the microstructural changes in 9Cr-1Mo and 2.25Cr-1Mo power generation steels after tempering and elevated temperature service exposure. The electromagnetic sensor can detect the microstructural changes in both steels due to the corresponding relative permeability and resistivity changes. The low-frequency inductance value is particularly sensitive to the different relative permeability values of both steels. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

Original language	English
Pages (from-to)	367-370
Number of pages	4
Journal	Scripta Materialia
Volume	66
Issue number	6
DOIs	https://doi.org/10.1016/j.scriptamat.2011.11.032
Publication status	Published - 1 Mar 2012

Keywords

EM sensor
Relative permeability
Power plant steels
Electrical resistivity

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10.1016/j.scriptamat.2011.11.032

High temperature In-situ Monitoring of Power Station Steels using Electromagnetic Sensors - POWEREMS
Davis, C. & Strangwood, M.
Engineering & Physical Science Research Council
1/06/10 → 31/05/13
Project: Research Councils

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title = "Measurement of microstructure changes in 9Cr-1Mo and 2.25Cr-1Mo steels using an electromagnetic sensor",

abstract = "This paper presents results from a multi-frequency electromagnetic sensor used to characterize the microstructural changes in 9Cr-1Mo and 2.25Cr-1Mo power generation steels after tempering and elevated temperature service exposure. The electromagnetic sensor can detect the microstructural changes in both steels due to the corresponding relative permeability and resistivity changes. The low-frequency inductance value is particularly sensitive to the different relative permeability values of both steels. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.",

keywords = "EM sensor, Relative permeability, Power plant steels, Electrical resistivity",

author = "Jun Liu and Xinjiang Hao and Lei Zhou and Martin Strangwood and Claire Davis and AJ Peyton",

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T1 - Measurement of microstructure changes in 9Cr-1Mo and 2.25Cr-1Mo steels using an electromagnetic sensor

AU - Liu, Jun

AU - Hao, Xinjiang

AU - Zhou, Lei

AU - Strangwood, Martin

AU - Davis, Claire

AU - Peyton, AJ

PY - 2012/3/1

Y1 - 2012/3/1

N2 - This paper presents results from a multi-frequency electromagnetic sensor used to characterize the microstructural changes in 9Cr-1Mo and 2.25Cr-1Mo power generation steels after tempering and elevated temperature service exposure. The electromagnetic sensor can detect the microstructural changes in both steels due to the corresponding relative permeability and resistivity changes. The low-frequency inductance value is particularly sensitive to the different relative permeability values of both steels. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

AB - This paper presents results from a multi-frequency electromagnetic sensor used to characterize the microstructural changes in 9Cr-1Mo and 2.25Cr-1Mo power generation steels after tempering and elevated temperature service exposure. The electromagnetic sensor can detect the microstructural changes in both steels due to the corresponding relative permeability and resistivity changes. The low-frequency inductance value is particularly sensitive to the different relative permeability values of both steels. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

KW - EM sensor

KW - Relative permeability

KW - Power plant steels

KW - Electrical resistivity

U2 - 10.1016/j.scriptamat.2011.11.032

DO - 10.1016/j.scriptamat.2011.11.032

M3 - Article

SN - 1872-8456

VL - 66

SP - 367

EP - 370

JO - Scripta Materialia

JF - Scripta Materialia

IS - 6

ER -

Measurement of microstructure changes in 9Cr-1Mo and 2.25Cr-1Mo steels using an electromagnetic sensor

Abstract

Keywords

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High temperature In-situ Monitoring of Power Station Steels using Electromagnetic Sensors - POWEREMS

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