Temperature-dependent modelling of magnetic ageing of FeSi electrical steels

被引：1

作者：

Helbling, H. ^{[1
]}

Toto-Jamil, M. ^{[1
]}

Dumont, M. ^{[2
]}

Benabou, A. ^{[1
]}

Clenet, S. ^{[1
]}

机构：

[1] Univ Lille, Arts & Metiers Inst Technol, Cent Lille, Junia, L2EP, F-59000 Lille, France

[2] Arts & Metiers Inst Technol Mech, Surfaces & Mat Proc MSMP, Lille, France

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2022年 / 564卷

关键词：

Magnetic ageing; JMAK model; Iron loss model; Precipitation; KINETICS; LOSSES;

D O I：

10.1016/j.jmmm.2022.170051

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper deals with the temperature-dependent modelling of iron losses in the context of magnetic ageing of electricals steel used in high power electrical machines. First, two electrical steel sheet grades were heat treated at three temperatures in order to study the ageing effect evolution as a function of temperature. Results show a significant increase in iron losses for both steel grades. Then, considering the link between the macroscopic magnetic properties evolution (effect) and the microscopic precipitation (cause), the Johnson - Mehl - Avrami - Kolmogorov (JMAK) law describing the kinetics of precipitation was applied to model the time evolution of magnetic ageing. By coupling this model with the Arrhenius' law, a model is developed to be able to predict the ageing for several temperature levels.

引用

页数：5

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