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Current Advances in Eddy Current Testing

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Electrical, Electronics and Communications Engineering".

Deadline for manuscript submissions: 30 June 2026 | Viewed by 1098

Special Issue Editors


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Guest Editor
Faculty of Automatic Control, Electronics and Computer Science, Silesian University of Technology, Gliwice, Poland
Interests: eddy current testing; electromagnetism; impedance analysis; analytical modeling
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Guest Editor
Department of Electronics, Electrical Engineering and Microelectronics, Silesian University of Technology, Akademicka 16, 44-100 Gliwice, Poland
Interests: automation; electronics; electrical; engineering and space technologies (AEEEST): 100% N
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School of Mechatronics Engineering, University of Electronics Science and Technology of China, Chengdu 611731, China
Interests: eddy current technique; microwave nondestructive imaging; RFID sensing and monitoring; imaging processing; structural health monitoring; computational electromagnetics
Special Issues, Collections and Topics in MDPI journals
State Key Laboratory of Power Grid Environmental Protection, School of Electrical Engineering and Automation, Wuhan University, Wuhan, China
Interests: magnetic flux density; Analytical Models; numerical models; permeability; Conductors

Special Issue Information

Dear Colleagues,

Eddy current inspections are one of the most widely used nondestructive testing methods, and are applied alike to the inspection of large components, such as aircraft or ships, and small products, such as tubes, rods, or welds. The eddy current technique has found application at every stage of a product’s life; that is, from the prototype, through the production process, to periodic inspections during operation. Inspections are aimed not only at detecting defects, but also at determining thickness, magnetic and electrical properties, or assessing technical condition. Technological progress means that the limits of the eddy current method are constantly changing and, today, thinner and thinner layers such as thermal barrier coatings with thicknesses of tens of micrometers and very low conductivity materials such as carbon fiber composites are being studied. In this Special Issue, we encourage all authors to submit papers on various aspects of eddy current testing, including such topics as:

  • Eddy current arrays;
  • Analytical and numerical modeling;
  • Pulsed eddy currents;
  • Eddy current imaging;
  • Inverse problems;
  • Lorentz force eddy current testing;
  • Motion-induced eddy currents;
  • Computer simulations;
  • Eddy current thermography;
  • Probe design;
  • Health prediction using eddy current sensing data;
  • Electromagnetic field sensors in eddy current testing;
  • Eddy current fusion with other nondestructive testing methods.

Dr. Grzegorz Tytko
Dr. Krzysztof Bernacki
Dr. Yating Yu
Dr. Yao Luo
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Applied Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • nondestructive testing
  • eddy current testing
  • pulsed eddy current

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Published Papers (1 paper)

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Research

14 pages, 5572 KB  
Article
Examination of Conductive WC-Ni and Thermal Barrier Coatings Using an Eddy Current Probe
by Grzegorz Tytko, Tadeusz Kubaszek, Marek Góral, Bo Feng and Yating Yu
Appl. Sci. 2025, 15(24), 12913; https://doi.org/10.3390/app152412913 - 8 Dec 2025
Viewed by 524
Abstract
In many industrial applications, engine, turbine, and rotor components are coated with thin layers that protect them from corrosion, high temperatures, or pressure. This paper presents a fast and effective method for testing such protective coatings. For this purpose, an eddy current probe [...] Read more.
In many industrial applications, engine, turbine, and rotor components are coated with thin layers that protect them from corrosion, high temperatures, or pressure. This paper presents a fast and effective method for testing such protective coatings. For this purpose, an eddy current probe consisting of a single coil was designed and constructed. The high sensitivity of the probe was achieved by using a pot core, which significantly reduced magnetic flux losses. In addition to the substrate, the test samples also contained carbide coatings or thermal barrier coatings (TBCs), which were sprayed with an Axial III triple-plasma torch or a single-electrode torch. The use of different process parameters made it possible to obtain coatings of varying thickness, which were determined using a scanning electron microscope (SEM). Measurements of the probe impedance components were performed in the frequency range from 500 Hz to 50 kHz. In all cases, based on the analysis of changes in resistance and reactance, it was possible to distinguish each of the tested samples. Even slight changes in thickness of only 9 μm caused significant changes in probe impedance, enabling effective testing of carbide coatings and TBCs. Full article
(This article belongs to the Special Issue Current Advances in Eddy Current Testing)
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