Effect of elastic and plastic tensile mechanical loading on the magnetic properties of NGO electrical steel
Effect of elastic and plastic tensile mechanical loading on the magnetic properties of NGO electrical steel
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DOI：
10.1016/j.jmmm.2016.05.049
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发表时间：
2016-11-01
影响因子：
2.7
通讯作者：
Hameyer, K.
中科院分区：
文献类型：
--
作者：
Leuning, N.;Steentjes, S.;Hameyer, K.
非晶粒取向（NGO）电工钢的磁性能对机械应力高度敏感，即，残余的、外部的或热的。对于旋转电机，机械应力是不可避免的并且源自不同的来源，例如，材料加工、机器制造和操作条件。不同的机械应力状态在很大程度上改变了效率和比损失。本文研究了拉应力和塑性变形对2.9wt%Si电工钢磁性能的影响。特别注意磁各向异性的影响，即，施加机械应力的方向对轧制方向的影响。由于机械应力，感生各向异性必须进行评估，因为它与应力相关的磁致伸缩常数和晶粒取向有关。(C)© 2016 Elsevier B.V.版权所有。
The magnetic properties of non-grain-oriented (NGO) electrical steels are highly susceptible to mechanical stresses, i.e., residual, external or thermal ones. For rotating electrical machines, mechanical stresses are inevitable and originate from different sources, e.g., material processing, machine manufacturing and operating conditions. The efficiency and specific losses are largely altered by different mechanical stress states. In this paper the effect of tensile stresses and plastic deformations on the magnetic properties of a 2.9 wt% Si electrical steel are studied. Particular attention is paid to the effect of magnetic anisotropy, i.e., the influence of the direction of applied mechanical stress with respect to the rolling direction. Due to mechanical stress, the induced anisotropy has to be evaluated as it is related to the stress-dependent magnetostriction constant and the grain alignment. (C) 2016 Elsevier B.V. All rights reserved.