Application of the Preisach and Jiles{endash}Atherton models to the simulation of hysteresis in soft magnetic alloys

Journal Article · Thu Apr 01 04:00:00 EST 1999 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.369788· OSTI ID:336610

Pasquale, M; Bertotti, G ^[1]; Jiles, D C; Bi, Y ^[2]

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1. IEN Galileo Ferraris and INFM, Corso Massimo DAzeglio 42, 10125 Torino (Italy)
2. Ames Laboratory, Iowa State University, Ames, Iowa 50011 (United States)

This article describes the advances in unification of model descriptions of hysteresis in magnetic materials and demonstrates the equivalence of two widely accepted models, the Preisach (PM) and Jiles{endash}Atherton (JA) models. Recently it was shown that starting from general energy relations, the JA equation for a loop branch can be derived from PM. The unified approach is here applied to the interpretation of magnetization measured in nonoriented Si{endash}Fe steels with variable grain size {l_angle}s{r_angle}, and also in as-cast and annealed Fe amorphous alloys. In the case of NO Fe{endash}Si, the modeling parameter {ital k} defined by the volume density of pinning centers is such that k{approx}A+B/{l_angle}s{r_angle}, where the parameters {ital A} and {ital B} are related to magnetocrystalline anisotropy and grain texture. The value of {ital k} in the amorphous alloys can be used to estimate the microstructural correlation length playing the role of effective grain size in these materials. {copyright} {ital 1999 American Institute of Physics.}

• OSTI ID: 336610
• Journal Information: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 8 Vol. 85; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
AMORPHOUS STATE
ANNEALING
FERROMAGNETIC MATERIALS
GRAIN SIZE
HYSTERESIS
IRON ALLOYS
MAGNETIZATION
METALLIC GLASSES
SILICON ALLOYS
SIMULATION
STEELS
TEXTURE