Magnetic Properties and Domain Structure of Nonoriented Electrical Steel Under Stress

被引：16

作者：

Senda, Kunihiro

Fujita, Akira

Honda, Atsuhito

Kuroki, Naoki

Yagi, Masaaki ^{[1
,2
]}

机构：

[1] Sojo Univ, Fac Engn, Kumamoto, Japan

[2] Sojo Univ, Energy & Elect Lab, Kumamoto, Japan

来源：

ELECTRICAL ENGINEERING IN JAPAN | 2013年 / 182卷 / 04期

关键词：

non-oriented electrical steel; stress; magnetization; magnetic polarization; iron loss; magnetostriction; COMPRESSIVE STRESS;

D O I：

10.1002/eej.22320

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The influence of stresses on the magnetic properties of nonoriented electrical steels was studied. The dependence of iron loss on compressive stress was affected by grain size. The magnetic polarization J in strong magnetic fields such as 5000 and 10,000 A/m increased due to compressive stresses and decreased due to tensile stresses in samples with low Si content. Using Kerr-effect domain observation, it was found that the reduction in J caused by tensile stresses was attributable to residual striped domains. Magnetostriction measurements in strong magnetic fields indicated that the increase in J under compressive stresses originated from the Villari effect (inverse magnetostrictive effect) due to negative magnetostriction in low-Si materials. (C) 2012 Wiley Periodicals, Inc. Electr Eng Jpn, 182(4): 10-18, 2013; Published online in Wiley Online Library (wileyonlinelibrary.com). DOI 10.1002/eej.22320

引用

页码：10 / 18

页数：9

共 12 条

[1] Prediction of mechanical stress effects on the iron loss in electrical machines [J].