Application of the Preisach and Jiles–Atherton models to the simulation of hysteresis in soft magnetic alloys
Application of the Preisach and Jiles–Atherton models to the simulation of hysteresis in soft magnetic alloys
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Preisach 和 Jiles-Atherton 模型在软磁合金磁滞模拟中的应用
DOI：
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发表时间：
1999
期刊：
影响因子：
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通讯作者：
Y. Bi
中科院分区：
文献类型：
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作者：
M. Pasquale;G. Bertotti;D. Jiles;Y. Bi
本文介绍了磁性材料磁滞回线模型描述的统一化进展，并论证了两种被广泛接受的磁滞回线模型Preisach（PM）和Jiles-Atherton（JA）的等价性。最近有人指出，从一般的能量关系出发，回路分支的JA方程可以从PM导出。统一的方法是在这里适用于解释测量的磁化强度在无取向的Si-Fe钢与可变晶粒尺寸的结晶器，也在铸态和退火的Fe非晶合金。在无Fe-Si的情况下，由钉扎中心的体积密度定义的模型参数k是这样的：k <$A+B/ε s <$，其中参数A和B与磁晶各向异性和晶粒织构有关。非晶合金中的k值可以用来估计在这些材料中起有效晶粒尺寸作用的显微组织相关长度。
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–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–Fe steels with variable grain size 〈s〉, and also in as-cast and annealed Fe amorphous alloys. In the case of NO Fe–Si, the modeling parameter k defined by the volume density of pinning centers is such that k≈A+B/〈s〉, where the parameters A and B are related to magnetocrystalline anisotropy and grain texture. The value of k in the amorphous alloys can be used to estimate the microstructural correlation length playing the role of effective grain size in these materials.