Aktuelle Wissenschaft: On the correlation of crystallographic macro-texture and magnetic magnetization anisotropy in non-oriented electrical steel

Ein neuer Beitrag unter dem Titel „On the correlation of crystallographic macro-texture and magnetic magnetization anisotropy in non-oriented electrical steel “ von Nora Leuning, Simon Steentjes, Martin Heller, Sandra Korte-Kerzel und Kay Hameyer ist ab sofort unter ScienceDirect verfügbar und ab dem 15. November 2019 im Vol. 490 des “Journal of Magnetism and Magnetic Materials” zu finden.

Abstract:

In material models for the finite-element simulation of electrical machines and the preceding magnetic measurements, the magnetic anisotropy of non-grain oriented electrical steel is usually considered in an oversimplified way, if at all. The magnetization behavior between rolling and transverse direction is not linear and varies with magnetic polarization, a relation that comes in addition to the complexity of the effect. In this paper, the magnetization anisotropy of five industrial non-grain oriented electrical steels is measured with a 1-D single-sheet-tester. The results are evaluated and correlated to the crystallographic texture of the studied materials. An approach to model magnetization curves at 50 Hz in arbitrary directions of the sheet plane is presented. The model is parametrized by measured magnetization curves along three different spatial directions and by macro-texture data in form of an orientation distribution function. This approach leads to a model that replicates the crossing of magnetization curves of different orientations with adequate quantitative accuracy for the application in FE magnetic field simulations.

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