journal article·2018-12

Distribution of Magnetic Flux in a Ferromagnetic Material in the Presence of a Nonferromagnetic Gap in the Composite Circuit

E. S. Gorkunov, A. M. Povolotskaya, S. M. Zadvorkin

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Abstract

Comparative analysis of the distribution of magnetic-induction vector components over the volume of a bulk homogeneous sample of 40Kh steel has been carried out under its local magnetization by an attached magnetic device in the absence of a gap in the composite “attached magnetic device–sample” circuit and in the presence of a nonferromagnetic gap under both poles of the attached magnetic device. It is shown that with the gap present in the composite circuit, the most significant drop in the magnetic flux density in the interpole zone of the object near its surface occurs in a section that coincides with the inner face of the electromagnet pole. The influence of the size of the gap in the composite “attached magnetic device–sample” circuit on the magnetic flux density has been investigated at different depths from the sample surface.
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Research context

OpenAlex topics: Non-Destructive Testing Techniques · Magnetic Properties and Applications · Material Properties and Failure Mechanisms

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References (29)

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