Backside defect evaluation in carbon steel plate using a hybridized magnetic flux leakage and eddy current technique

Mohd Aufa Hadi Putera, Zaini and Mohd Mawardi, Saari and Nurul A’in, Nadzri and Zulkifly, Ab Aziz and Kiwa, Toshihiko (2024) Backside defect evaluation in carbon steel plate using a hybridized magnetic flux leakage and eddy current technique. Journal of Nondestructive Evaluation, 43 (9). pp. 1-15. ISSN 0195-9298. (Published)

Pdf
Backside Defect Evaluation in Carbon Steel Plate Using a Hybridized.pdf
Restricted to Repository staff only
Download (3MB) | Request a copy

Preview

Pdf
Backside defect evaluation in carbon steel plate using a hybridized magnetic flux leakage and eddy current technique_ABS.pdf
Download (122kB) | Preview

DOI/Official URL: https://doi.org/10.1007/s10921-023-01022-z

Abstract

The challenges inherent in effective nondestructive evaluation of backside defects in steel, such as cracks, arise from the limited penetration of eddy currents (EC) due to the high permeability of steel. While the magnetic flux leakage (MFL) technique is able to detect deep defects, it lacks detailed geometry information. In this study, a hybrid approach is proposed, involving the simultaneous analysis of MFL and EC signals using a custom-designed magnetic probe. The probe is developed based on Finite Element Method simulations, followed by validation on 2 mm carbon steel plates containing artificial slits. The simulation results showed that the spatial and intensity responses of MFL and EC signals within the slits can be utilized for characterizing the slits. Furthermore, validation with fabricated backside slits confirms the correlation between slit depth, length and the intensity of the measured signals, particularly when an optimized excitation frequency is employed. The proposed method enables the prediction of slit depth and identification of slit shapes, thereby resulting in an enhancement of backside defect detection capabilities. Through this proposed hybrid technique, a connection is established between MFL and EC methods to enable a versatile tool for the precise assessment of cracks.

Item Type:	Article
Additional Information:	Indexed by Scopus
Uncontrolled Keywords:	Anisotropy magnetoresistance (AMR); Eddy current testing (ECT); Finite element modelling (FEM); Magnetic flux leakage (MFL); Phase-sensitive detection; Slit detection; Steel
Subjects:	T Technology > T Technology (General) T Technology > TA Engineering (General). Civil engineering (General) T Technology > TK Electrical engineering. Electronics Nuclear engineering
Faculty/Division:	Institute of Postgraduate Studies College of Engineering Faculty of Electrical and Electronic Engineering Technology
Depositing User:	Mr Muhamad Firdaus Janih@Jaini
Date Deposited:	16 Jan 2024 07:49
Last Modified:	16 Jan 2024 07:49
URI:	http://umpir.ump.edu.my/id/eprint/40045
Download Statistic:	View Download Statistics

Actions (login required)

View Item