Numerical Simulation of Non-Destructive Remote Field Eddy Current Testing of Rolled Metal Tubes

Authors: Efimov A.G., Kuzelev N.R., Martyanov E.V., Kanter B.M., Shubochkin A.E. Published: 17.10.2019
Published in issue: #5(128)/2019  

DOI: 10.18698/0236-3941-2019-5-46-55

Category: Mechanical Engineering and Machine Science | Chapter: Machines, Units and Processes  
Keywords: non-destructive testing, electromagnetic testing, eddy current testing, remote field eddy current testing, tubes defectoscopy, numerical simulation

The first publications describing the physical principles of the non-destructive remote field eddy current testing method appeared about 30 years ago. This method allows to significantly expand the field of application of eddy current testing. However, due to the lack of a theoretical justification, this method did not get widespread use around the world. Domestic publications in this area are completely absent, and the descriptions given in few foreign publications often contradict each other. There are no results of full-scale simulation using numerical methods in available domestic and foreign sources. The distinctive feature of this method under consideration is the ability of detecting defects on the external (with respect to the eddy current transducer) side of the tested object, which is impossible for the classical eddy current method due to the limited eddy current penetration depth. The basics of the method were considered, the distinctive features were presented, and the advantages and disadvantages of remote field eddy current testing of metals were pointed out. A numerical simulation with the subsequent analysis of the obtained results has been carried out, the transducer design for remote field eddy current testing is given. The influence of various factors on the change in the added voltage of the signal coil of the eddy current transducer in the presence of a defect in the external wall of the tube was considered. Expressions that determine the optimal ratio of the diameters of the transducer and the tested product were obtained. The values of the test parameters and the limiting wall thickness of the tested ferromagnetic product were determined


[1] Efimov A.G. By the influence of corrosion products and metal deposits on the detection of defects in the continuity of the electromagnetic control of steel products. Part 1. Kontrol’. Diagnostika [Testing. Diagnostics], 2012, no. 1, pp. 26--33 (in Russ.).

[2] Efimov A.G. By the influence of corrosion products and metal deposits on the detection of defects in the continuity of the electromagnetic control of steel products. Part 2. Kontrol’. Diagnostika [Testing. Diagnostics], 2012, no. 2, pp. 25--33 (in Russ.).

[3] Efimov A.G., Shubochkin A.E., Mart’yanov E.V. Modern eddy current flaw detection system for rolled steel. Kontrol’. Diagnostika [Testing. Diagnostics], 2014, no. 12, pp. 19--20 (in Russ.).

[4] Shubochkin A.E. Razvitie i sovremennoe sostoyanie vikhretokovogo metoda nerazrushayushchego kontrolya [Development and current state of eddy current method of nondestructive control]. Moscow, Spektr Publ., 2014.

[5] Efimov A.G., Fedosenko Yu.K., Shkatov P.N. Vikhretokovyy kontrol’ [Eddy current control]. Moscow, Spektr Publ., 2011.

[6] Klyuev V.V., Kuzelev N.R., Artem’yev B.V., et al. Intelligent systems NDT and technical diagnostics --- the basis of the safe operation of nuclear power plants. Kontrol’. Diagnostika [Testing. Diagnostics], 2013, no. 1, pp. 35--39 (in Russ.).

[7] Yang B., Li X., Yang B., et al. Pulsed remote eddy current field array technique for nondestructive inspection of ferromagnetic tube. NDT&E, 2010, vol. 25, no. 1, pp. 3--12. DOI: 10.1080/10589750802613347

[8] Russell D., Shen V. Increased use of remote field technology for in-line inspection of pipelines proves the value of the technology for this application. World Conf. Nondestructive Testing. Available at: https://www.ndt.net/article/wcndt2008/papers/466.pdf

[9] Noriyasu K., Souichi U., Satoshi N., et al. Remote field eddy current testing for steam generator inspection of fast reactor. Nucl. Eng. Des., 2011, vol. 241, no. 12, pp. 643--648. DOI: 10.1016/j.nucengdes.2011.03.054

[10] Prochazka M. In-service inspection of heat-exchanger tubes by means of electromagnetic methods. Defektoskopie, 2011, pp. 127--142.

[11] Vajpayee A. Automated condition assessment of boiler water wall tubes. SAINT-2018. Available at: https://www.ndt.net/search/docs.php3?showForm=off&id=22348

[12] Xu X., Liu M., Zhang Zh., et al. A novel high sensitivity sensor for remote field eddy current non-destructive testing based on orthogonal magnetic field. Sensors, 2014, vol. 14, no. 12, pp. 99--115. DOI: 10.3390/s141224098

[13] Luo Q., Shi Y., Wang Z., et al. A study of applying pulsed remote field eddy current in ferromagnetic pipes testing. Sensors, 2017, vol. 17, no. 5, pp. 2--8. DOI: 10.3390/s17051038

[14] Falque R., Vidal-Calleja T., Dissanayake G., et al. From the skin-depth equation to the inverse RFEC sensor model. ICARCV, 2016. DOI: 10.1109/ICARCV.2016.7838633

[15] Falque R., Vidal-Calleja T., Dissanayake G., et al. Remote field eddy current signal deconvolution and towards inverse modeling. Available at: http://export.arxiv.org/pdf/1708.05710 (accessed: 14.05.2019).