Modelling of magnetic field and flux in objects having surface-hardening and transition layer

Vladimir Kostin,Alexander Byzov,Olga Vasilenko

doi:10.1051/matecconf/201822403015

Vladimir Kostin, Alexander Byzov + Show 1 more

Open Access

https://doi.org/10.1051/matecconf/201822403015

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Abstract

A finite element simulation of the distribution of the magnetic field and flux in locally magnetized steel objects subjected to surface hardening and having after hardening a three-layer structure: a hardened surface layer, a transition layer, an unstressed core; has been conducted. Magnetization of the tested object was conducted using a U-shaped electromagnet. As a result, pictures of the distribution of the magnetic field in the monitoring object were obtained. The values of induction depending on the depth of the hardened layer for a fixed transition layer at different points of space relative to the surface of the object of control are obtained.

Highlights

Surface hardening of steel products is conducted to increase their wear resistance and fatigue failure resistance
To understand the processes occurring when magnetizing massive layered objects and for expanding the range of controlled products, including for creating methods for controlling massive objects by the properties of matter, it is necessary to investigate the spatial distribution of the field and the magnetic flux both in the controlled object and over its surface
When setting up model experiments, the value of the hardened layer varied within 0.520 mm; the thickness of the transition layer was 2 mm; the magnitude of the magnetomotive force in the magnetic circuit was 1800 A

Summary

Introduction

Surface hardening of steel products is conducted to increase their wear resistance and fatigue failure resistance. To understand the processes occurring when magnetizing massive layered objects and for expanding the range of controlled products, including for creating methods for controlling massive objects by the properties of matter, it is necessary to investigate the spatial distribution of the field and the magnetic flux both in the controlled object and over its surface. There are experimental and theoretical methods for studying and optimizing composite magnetic circuits. Theoretical investigation of magnetic circuits and transducers implies a solution of the system of Maxwell's equations. To solve this problem, the most accessible method is 3d modeling, which consists in the numerical solution of the system of Maxwell equations for given boundary conditions.

Description of the model experiment

Modeling

Discussion

Conclusion