Thickness evaluation of thermally sprayed coatings after exposure to boiler tube environments by eddy current testing

Tetsuya Uchimoto; Toshiyuki Takagi; Yohei Takahashi; Hiroshi Naganuma; Kazufumi Sugawara; Yoriaki Sasaki; Thierry Douillard; Karine Masenelli-Varlot; Jöel Courbon

doi:10.3233/JAE-140050

Thickness evaluation of thermally sprayed coatings after exposure to boiler tube environments by eddy current testing

Tetsuya Uchimoto, Toshiyuki Takagi, Yohei Takahashi, Hiroshi Naganuma, Kazufumi Sugawara, Yoriaki Sasaki, Thierry Douillard, Karine Masenelli-Varlot, Jöel Courbon

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

This paper discusses the feasibility of determining the thickness of Ni-based alloy sprayed coatings that have been heated in plant environments using swept frequency eddy current testing based on the measurement of the impedance spectrum of the measurement coil. Through a comparison of the experimental and computed signals, an electromagnetic model simulating the test geometry including the coating and the substrate is presented, with particular focus on the effects of heat treatment. Using these models, the coating thickness is estimated using the measured impedance spectra, and the estimation error was found to be around 30 μm.

Original language	English
Pages (from-to)	993-1001
Number of pages	9
Journal	International Journal of Applied Electromagnetics and Mechanics
Volume	47
Issue number	4
DOIs	https://doi.org/10.3233/JAE-140050
Publication status	Published - 2015 Jun 9

Keywords

Thermally sprayed coating
boiler tube environment
coating thickness
swept frequency eddy current testing

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Electrical and Electronic Engineering

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10.3233/JAE-140050

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Uchimoto, T., Takagi, T., Takahashi, Y., Naganuma, H., Sugawara, K., Sasaki, Y., Douillard, T., Masenelli-Varlot, K., & Courbon, J. (2015). Thickness evaluation of thermally sprayed coatings after exposure to boiler tube environments by eddy current testing. International Journal of Applied Electromagnetics and Mechanics, 47(4), 993-1001. https://doi.org/10.3233/JAE-140050

Uchimoto, T , Takagi, T, Takahashi, Y, Naganuma, H, Sugawara, K, Sasaki, Y, Douillard, T, Masenelli-Varlot, K & Courbon, J 2015, 'Thickness evaluation of thermally sprayed coatings after exposure to boiler tube environments by eddy current testing', International Journal of Applied Electromagnetics and Mechanics, vol. 47, no. 4, pp. 993-1001. https://doi.org/10.3233/JAE-140050

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abstract = "This paper discusses the feasibility of determining the thickness of Ni-based alloy sprayed coatings that have been heated in plant environments using swept frequency eddy current testing based on the measurement of the impedance spectrum of the measurement coil. Through a comparison of the experimental and computed signals, an electromagnetic model simulating the test geometry including the coating and the substrate is presented, with particular focus on the effects of heat treatment. Using these models, the coating thickness is estimated using the measured impedance spectra, and the estimation error was found to be around 30 μm.",

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AU - Uchimoto, Tetsuya

AU - Takagi, Toshiyuki

AU - Takahashi, Yohei

AU - Naganuma, Hiroshi

AU - Sugawara, Kazufumi

AU - Sasaki, Yoriaki

AU - Douillard, Thierry

AU - Masenelli-Varlot, Karine

AU - Courbon, Jöel

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KW - boiler tube environment

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Thickness evaluation of thermally sprayed coatings after exposure to boiler tube environments by eddy current testing

Abstract

Keywords

ASJC Scopus subject areas

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