Journal ArticleDOI
Characterization of ductile cast iron by eddy current method
TLDR
In this article, the eddy current response signals from FCD 450-600 grades of cast iron were measured and a good correlation with their hardness and tensile properties was found.Abstract:
Eddy current method was applied for evaluation of material properties of ductile cast iron. Measurements of eddy current response signals from FCD 450–600 grades of cast iron demonstrated good correlation with their hardness and tensile properties. Alternative ultrasonic method was explored for assessment of hardness of the studied samples and showed its inadequacy for specimens with similar graphite nodularity.read more
Citations
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Journal ArticleDOI
Eddy currents and hardness testing for evaluation of steel decarburizing
TL;DR: In this paper, different durations of austenitizing at 920 °C temperature before oil quenching (50 °C) were performed on the SAE 92V45 steel in order to obtain various morphologies and different total depths of the decarburized zone.
Journal ArticleDOI
Characterization of aging behaviour in M250 grade maraging steel using eddy current non-destructive methodology
TL;DR: In this paper, the effect of aging of solution annealed M250 grade maraging steel on the microstructure, room temperature hardness and eddy current (EC) parameters was investigated.
Journal ArticleDOI
Eddy current nondestructive evaluation of dual phase steel
TL;DR: In this paper, the authors proposed eddy current testing (ECT) as a tool for nondestructive material characterization and found a good correlation exists between ECT outputs and microstructural and mechanical changes in the DPS specimens.
Journal ArticleDOI
Comparative study of eddy current and Barkhausen noise nondestructive testing methods in microstructural examination of ferrite-martensite dual-phase steel
TL;DR: In this paper, the magnetic properties of dual-phase steels were evaluated using eddy current and Barkhausen noise nondestructive testing methods and correlated with their microstructural changes.
Journal ArticleDOI
Pearlite determination in plain carbon steel by eddy current method
TL;DR: In this paper, the eddy current measurement can be used for obtaining reliable and quick detection of pearlitic percentage in plain carbon steels, and the results showed that the measured eddy currents can yield different pearlitic microstructures in the samples.
References
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Journal ArticleDOI
Numerical evaluation of correlation between crack size and eddy current testing signal by a very fast simulator
TL;DR: In this paper, a very fast eddy current testing (ECT) signal simulator was developed, and its application to the evaluation of the correlation between cracks and signals was described, based on a reduced magnetic vector potential, edge based finite elements, and the pre-computed unflawed database approach.
Proceedings ArticleDOI
Deep Crack Detection around Fastener Holes in Airplane Multi‐Layered Structures Using GMR‐Based Eddy Current Probes
TL;DR: In this paper, the use of shaped excitation coils, the original positioning and orientation of the magnetic sensors enhance the sensitivity of these probes to buried defects while reducing the influence of fastener holes edge.
Journal ArticleDOI
Investigation of the microstructure of cast iron by laser ultrasonic surface wave spectroscopy
Weimin Gao,Christ Glorieux,Silvio Elton Kruger,Kris Van de Rostyne,Vitalyi Gusev,Walter Lauriks,Jan Thoen +6 more
TL;DR: In this paper, the authors used an all-laser surface wave ultrasonic method to investigate cast iron samples with a variety of morphologies of included graphite precipitation, and the relation between ultrasonic attenuation and the microstructure of cast iron is discussed.
Journal ArticleDOI
Nondestructive detection of dislocations in steel using a SQUID gradiometer
TL;DR: In this article, a magnetic flux image (MFI) was used to show the distribution of magnetic flux density over a plate-like specimen and the change of the pattern in the MFI by tensile deformation has been investigated in a carbon steel without applying magnetic field using the system.
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