Hysteresis of the magnetic field of surface flaws in different steels during magnetization with an attachable electromagnet

The results of experimental investigations of the hysteresis of the magnetic-field strength of surface defects in specimens of different steels during their magnetization with a bipolar electromagnet are discussed. An inversion of the position of the magnetic-hysteresis branches of the field of a fl...

Full description

Saved in:
Bibliographic Details
Published in:Russian journal of nondestructive testing 2015-10, Vol.51 (10), p.616-623
Main Author: Gusev, A. P.
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Chemistry and Materials Science
Coercive force
Defects
Electromagnets
Fluxes
Hysteresis
Magnetic Methods
Magnetization
Materials Science
Mathematical models
Steels
Structural Materials
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The results of experimental investigations of the hysteresis of the magnetic-field strength of surface defects in specimens of different steels during their magnetization with a bipolar electromagnet are discussed. An inversion of the position of the magnetic-hysteresis branches of the field of a flaw is obtained as a function of the coercive force of a material. The obtained experimental regularities are explained using a flux model that is based on the concept of the interrelation between the magnetization of the surface layer of a magnetized body and two oppositely directed magnetic fluxes. The model is analyzed using the superposition principle and the dependences of the fluxes on the permeability of materials, the coercive forces of steels, and the demagnetizing factor are taken into consideration.
ISSN:1061-8309
1608-3385
DOI:10.1134/S1061830915100058