Micromagnetic model for the influence of biaxial stress on hysteretic magnetic properties

Journal Article · Sun May 15 04:00:00 EDT 1994 · Journal of Applied Physics; (United States)

DOI:https://doi.org/10.1063/1.355633· OSTI ID:7207538

Sablik, M J; Riley, L A; Burkhardt, G L; Kwun, H ^[1]; Cannell, P Y; Watts, K T ^[2]; Langman, R A ^[3]

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1. Southwest Research Institute, P.O. Drawer 28510, San Antonio, Texas 78228-0510 (United States)
2. Naval Surface Warfare Center, Annapolis, Maryland 21402 (United States)
3. University of Tasmania, Hobart, Tasmania, 7001 (Australia)

A micromagnetic formulation has been developed for modeling the effect of biaxial stress on magnetoelastic processes in polycrystalline steels. In particular, the formulation employs the Schneider--Cannell--Watts model and involves substitution of an effective stress equal to one of the deviatoric (i.e., distortional) normal stress components, depending on whether the field is parallel to a tensile or compressive axis or to the third axis perpendicular to the plane of biaxial stress. Computer results are compared to experimental results on the effects of biaxial stress on magnetic properties in mild steel and in SAE-4130 steel. Good qualitative agreement is found in almost all cases, in that in going from one biaxial stress case to the next, the same kinds of changes are seen magnetically. It is also shown from the model and the data that a method can be formulated to nondestructively determine the difference in biaxial stresses.

• OSTI ID: 7207538
• Journal Information: Journal of Applied Physics; (United States), Journal Name: Journal of Applied Physics; (United States) Vol. 75:10; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ALLOYS
COMPUTERIZED SIMULATION
CRYSTALS
HYSTERESIS
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS TESTING
MATHEMATICAL MODELS
NONDESTRUCTIVE TESTING
POLYCRYSTALS
SIMULATION
STEELS
STRESSES
TESTING