Magnetoelasticity for large stresses

Author

Schneider, Carl S. ; Cannell, Paula Y. ; Watts, Kimball T.

Author_Institution

Dept of Phys., US Naval Acad., Annapolis, MD, USA

Volume

28

Issue

5

fYear

1992

fDate

9/1/1992 12:00:00 AM

Firstpage

2626

Lastpage

2631

Abstract

A model of magnetoelasticity based on the differential susceptibility, stress effective magnetic field, and stress demagnetization in conjunction with appropriate rules of hysteresis is presented and compared to experimental data for high-strength steels for several magnetoelastic processes. The authors observe a decrease in stress effectiveness and define a saturation anisotropy factor which decreases from unity in the Rayleigh region to less than one half for the values of stress and field considered. The model also predicts the stressed saturate hysteresis loop and equilibrium near the anhysteretic curve and enables understanding of the Villari reversal of magnetoelastic sensitivity

Keywords

demagnetisation; ferromagnetic properties of substances; induced anisotropy (magnetic); magnetic domain walls; magnetic hysteresis; magnetic susceptibility; magnetoelastic effects; steel; Rayleigh region; Villari reversal; anhysteretic curve; differential susceptibility; domain wall motion; high-strength steels; magnetoelastic sensitivity; magnetoelasticity model; saturation anisotropy factor; stress demagnetization; stress effective magnetic field; stressed saturate hysteresis loop; Demagnetization; Magnetic anisotropy; Magnetic hysteresis; Magnetic susceptibility; Magnetoelasticity; Magnetostriction; Perpendicular magnetic anisotropy; Saturation magnetization; Steel; Stress;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.179578

Filename

179578