TY - JOUR
T1 - Analysis for Hydrogen Concentration in Titanium Alloys Using Multifrequency Eddy Current
AU - Xu, Shupeng
AU - Larionov, Vitaly V.
AU - Soldatov, Alexey
AU - Chang, Jianglei
N1 - Funding Information:
Manuscript received June 29, 2020; accepted August 9, 2020. Date of publication August 19, 2020; date of current version November 17, 2020. This was supported by the Program for Competitiveness Enhancement Program of Tomsk Polytechnic University. The Associate Editor coordinating the review process was Dr. Yuan Gao. (Corresponding author: Jianglei Chang.) Shupeng Xu and Vitaly V. Larionov are with the Institute of Physics and Technology, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia (e-mail: isxusp@gmail.com; lvv@tpu.ru).
Publisher Copyright:
© 1963-2012 IEEE.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2021
Y1 - 2021
N2 - In this article, multifrequency eddy current testing is proposed to detect hydrogen concentration in alloy titanium. The effect of hydrogen on the titanium alloy was explored across the surface layer of the material. The sample has a fixed surface area, and the samples with the same thickness and different hydrogen concentrations are analyzed. Output voltage amplitudes and dielectric loss tangent in hydrogen-filled titanium VT1-0 were studied in the range of hydrogen concentration from 0.019 to 0.290 wt.% using the instrument Micromagnetic Multiparameter Microstructure and Stress Analysis (3MA-II) at the frequency from 200 to 1000 kHz. This article proposes a method of analyzing the internal conductivity of metals by eliminating surface effects. The linear relationship between hydrogen concentration and conductivity is obtained, and the experimental results that are closer to the theory than the four-probe method and the inclusion surface are obtained. The results show that the output signal amplitudes decreased with an increase of the hydrogen concentration and frequency, and in addition, the dielectric loss tangent obtains a similar result at the hydrogen concentra- tion >0.100 wt.%. It is shown that this method can be used to evaluate the concentration of hydrogen in metal.
AB - In this article, multifrequency eddy current testing is proposed to detect hydrogen concentration in alloy titanium. The effect of hydrogen on the titanium alloy was explored across the surface layer of the material. The sample has a fixed surface area, and the samples with the same thickness and different hydrogen concentrations are analyzed. Output voltage amplitudes and dielectric loss tangent in hydrogen-filled titanium VT1-0 were studied in the range of hydrogen concentration from 0.019 to 0.290 wt.% using the instrument Micromagnetic Multiparameter Microstructure and Stress Analysis (3MA-II) at the frequency from 200 to 1000 kHz. This article proposes a method of analyzing the internal conductivity of metals by eliminating surface effects. The linear relationship between hydrogen concentration and conductivity is obtained, and the experimental results that are closer to the theory than the four-probe method and the inclusion surface are obtained. The results show that the output signal amplitudes decreased with an increase of the hydrogen concentration and frequency, and in addition, the dielectric loss tangent obtains a similar result at the hydrogen concentra- tion >0.100 wt.%. It is shown that this method can be used to evaluate the concentration of hydrogen in metal.
KW - Conductivity
KW - eddy current testing (ECT)
KW - hydrogen concentration
KW - Micromagnetic Multiparameter Micro-structure and Stress Analysis (3MA-II)
KW - titanium VT1-0
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U2 - 10.1109/TIM.2020.3017899
DO - 10.1109/TIM.2020.3017899
M3 - Article
AN - SCOPUS:85096786958
VL - 70
JO - IEEE Transactions on Instrumentation and Measurement
JF - IEEE Transactions on Instrumentation and Measurement
SN - 0018-9456
M1 - 9171325
ER -