TY - JOUR
T1 - Investigation of electromagnetic nondestructive evaluation of residual strain in low carbon steels using the eddy current magnetic signature (EC-MS) method
AU - Matsumoto, Takanori
AU - Uchimoto, Tetsuya
AU - Takagi, Toshiyuki
AU - Dobmann, Gerd
AU - Ducharne, Benjamin
AU - Oozono, Shinji
AU - Yuya, Hideki
N1 - Funding Information:
This work was partly supported by the JSPS Core -to-Core Program, A. Advanced Research Networks, “International research core on smart layered materials and structures for energy saving”, the FY 2016-2017 JSPS -HAS Bilateral Joint Research Project, JSPS KAKENHI Grant Number 18H01448 , Grant-in-Aid for JSPS Fellow 16J04522, and 2016FY Collaborative Research into Nuclear Power by Japan Chubu Electric Power Co. Declarations of interest None. Appendix A
Funding Information:
This work was partly supported by the JSPS Core-to-Core Program, A. Advanced Research Networks, “International research core on smart layered materials and structures for energy saving”, the FY 2016-2017 JSPS-HAS Bilateral Joint Research Project, JSPS KAKENHI Grant Number 18H01448, Grant-in-Aid for JSPS Fellow 16J04522, and 2016FY Collaborative Research into Nuclear Power by Japan Chubu Electric Power Co.
Publisher Copyright:
© 2019 Elsevier B.V.
PY - 2019/6/1
Y1 - 2019/6/1
N2 - A novel magnetic nondestructive testing method, that is named eddy current magnetic signature (EC-MS) method, is proposed to evaluate the residual strain in low carbon steels. This method relies on characterization of eddy current signals in the impedance plane if low frequency major magnetization is superimposed. To investigate the mechanism of the proposed method, the eddy current magnetic signatures of a set of tensile test specimens are measured, and their relationship to the residual strain is surveyed. The trajectories of the eddy current signals show significant dependences on the residual strain; the EC-MS changes depending on the three residual strain stages, the region just after elastic limit before yield point, the Lüders-strain region, and the region after start of work hardening. The EC-MS under elastic strain/stress is measured to investigate the influence of stress on the EC-MS. Numerical calculation is performed considering micro-eddy current field associated with moving domain walls and compared with experimental results to interpret the EC-MS phenomena.
AB - A novel magnetic nondestructive testing method, that is named eddy current magnetic signature (EC-MS) method, is proposed to evaluate the residual strain in low carbon steels. This method relies on characterization of eddy current signals in the impedance plane if low frequency major magnetization is superimposed. To investigate the mechanism of the proposed method, the eddy current magnetic signatures of a set of tensile test specimens are measured, and their relationship to the residual strain is surveyed. The trajectories of the eddy current signals show significant dependences on the residual strain; the EC-MS changes depending on the three residual strain stages, the region just after elastic limit before yield point, the Lüders-strain region, and the region after start of work hardening. The EC-MS under elastic strain/stress is measured to investigate the influence of stress on the EC-MS. Numerical calculation is performed considering micro-eddy current field associated with moving domain walls and compared with experimental results to interpret the EC-MS phenomena.
KW - Eddy current magnetic signature
KW - Electromagnetic nondestructive evaluation
KW - Low carbon steel
KW - Magnetic incremental permeability
KW - Residual strain
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U2 - 10.1016/j.jmmm.2019.01.103
DO - 10.1016/j.jmmm.2019.01.103
M3 - Article
AN - SCOPUS:85061571361
VL - 479
SP - 212
EP - 221
JO - Journal of Magnetism and Magnetic Materials
JF - Journal of Magnetism and Magnetic Materials
SN - 0304-8853
ER -