NDTnet 1998 Aug, Vol.3 No.8

Abstract

Introduction
The electromagnetic properties of steels depend on their composition, microstructures and the applied stresses. It is therefore natural to try to use magnetic and electrical parameters of steels to evaluate their microstructure.

Content
The sensitivity to defects and other control parameters can be improved by optimizing the choice of the probe. It appears, after the study of different types of probes (ferritic, wild steel, insulator) with different geometries (dish, conical, ...), necessary to underline that the success of a feasibility research, largely depends on a suitable definition of measure collectors, so that they are adapted to the considered problem.A software has been elaborated allowing the automation of this control and the reconstitution of 2D and 3D images of the controlled samples.

Conclusion
The realized experiments have shown the large possibilities of analysis by the eddy currents. They allow, besides the verification of the coating and the determination of its thickness, to give an overview on the percentage of the main chemical components of the controlled samples coating by a deepened processing.

Abstract Source:
Book of Abstracts, 7th European Conference on Non-Destructive Testing, 26-29 May 1998, ISBN: 87-986898-0-00

Full-Text Source:
Proceedings of the 7th European Conference on Non-Destructive Testing, 26-29 May 1998, ISBN:

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