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Magnetic Hysteresis Analysis for Non-Destructive Evaluation of Aircraft Structural Steels Cover

Magnetic Hysteresis Analysis for Non-Destructive Evaluation of Aircraft Structural Steels

Transactions on Aerospace Research
Volume 2024 (2024): Issue 3 (September 2024)
By: Roman Solomakha and  Valentyn Uchanin  
Open Access
|Sep 2024

Figures & Tables

Fig. 1.

The main magnetization, the magnetic hysteresis loop, and the related magnetic characteristics [11]
The main magnetization, the magnetic hysteresis loop, and the related magnetic characteristics [11]

Fig. 2.

The hysteresis loop changes for steel subjected to cold working or caused by the non-magnetic addition: soft (1) and hardened (2) steels [11]
The hysteresis loop changes for steel subjected to cold working or caused by the non-magnetic addition: soft (1) and hardened (2) steels [11]

Fig. 3.

Magnetic measurement system schemes, based on a) permeameter; b) attachable transducer: 1 – the tested object; 2 – magnetizing coil; 3 – yoke of the magnetic circuit; 4 – winding on the tested object for magnetic flux measurement; 5 – magnetic flux density sensor; 6 – movable pole of magnetic circuit.
Magnetic measurement system schemes, based on a) permeameter; b) attachable transducer: 1 – the tested object; 2 – magnetizing coil; 3 – yoke of the magnetic circuit; 4 – winding on the tested object for magnetic flux measurement; 5 – magnetic flux density sensor; 6 – movable pole of magnetic circuit.

Fig. 4.

Magnetic Analyzer of type MA-05: a) general view of electronic unit with PC screen; b) an example of measurement results as hysteresis loop with calculated magnetic characteristics
Magnetic Analyzer of type MA-05: a) general view of electronic unit with PC screen; b) an example of measurement results as hysteresis loop with calculated magnetic characteristics

Fig. 5.

The KRM-Ts coercive force meter with attachable U-shaped core magnetic transducer and two calibration specimens of known coercive force
The KRM-Ts coercive force meter with attachable U-shaped core magnetic transducer and two calibration specimens of known coercive force

Fig. 6.

Attachable magnetic transducers for KRM-Ts type coercive force meter
Attachable magnetic transducers for KRM-Ts type coercive force meter

Fig. 7.

Spherical and cylindrical gas containers of aircraft selected for NDT inspection
Spherical and cylindrical gas containers of aircraft selected for NDT inspection

Fig. 8.

The scheme of measurements and results obtained: a) measuring points diagram; b) resulting coercive force distribution along the container length
The scheme of measurements and results obtained: a) measuring points diagram; b) resulting coercive force distribution along the container length

Results of coercive force measurements

ContainerMaterialHcBAverage HcMin HcMax HcDifferenceDifference
type A/cmA/cmA/cmA/cmA/cm%
140HMA2217.816.318.82.513
40HMA2215.814.516.92.414
40HMA2215.714.316.52.213
240HA2014.614.215.31.17
40HA2015.114.6161.49
40HA2014.813.715.7213
340HA2013.512.8152.215
40HA2014.713.815.71.912
40HA2014.213.514.81.39
430HGSA2418.518.118.90.84
30HGSA2418.51818.90.95
30HGSA2419.118.819.50.74
DOI: https://doi.org/10.2478/tar-2024-0013 | Journal eISSN: 2545-2835
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Language: English
Page range: 1 - 12
Submitted on: Feb 28, 2024
Accepted on: Apr 22, 2024
Published on: Sep 11, 2024
Published by: ŁUKASIEWICZ RESEARCH NETWORK – INSTITUTE OF AVIATION
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year
Keywords:
Magnetic hysteresis loop,
attachable U-shaped transducer,
magnetic analyzer,
coercive force meter
Related subjects:
Engineering,
Introductions and overviews,
Engineering, other,
Geosciences,
Geosciences, other,
Materials sciences,
Materials sciences, other,
Physics,
Physics, other

© 2024 Roman Solomakha, Valentyn Uchanin, published by ŁUKASIEWICZ RESEARCH NETWORK – INSTITUTE OF AVIATION
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

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