Effects of compressive stress normal to the surface of grain-oriented electrical steel sheets

Issue title: 13th International Workshop on 1&2 Dimensional Magnetic Measurement and Testing (2014)

Subtitle:

Guest editors: Carlo Appino, Cinzia Beatrice, Fausto Fiorillo and Carlo Ragusa

Article type: Research Article

Authors: Yamamoto, Ken-ichi^{a; *} | Hamada, Toshiyuki^a | Yanase, Shunji^b

Affiliations: [a] University of the Ryukyus, Nakagami, Okinawa, Japan | [b] Gifu University, Yanagido, Gifu, Japan

Correspondence: [*] Corresponding author: Ken-ichi Yamamoto, University of the Ryukyus, 1 Senbaru, Nishihara, Nakagami, Okinawa 903-0213, Japan E-mail:yamamoto@eee.u-ryukyu.ac.jp

Abstract: The magnetic properties of grain-oriented electrical sheets were measured under compressive stress applied in the thickness direction using a single-sheet tester with two H-coils. This apparatus can apply uniform stress throughout the specimens. Decreases in both the permeability and magnetic losses are observed in the specimens under normal stress of 20 MPa. This normal stress can reduce both hysteresis and the eddy-current losses.

Keywords: Magnetic losses, permeability, electrical steel sheet, normal stress

DOI: 10.3233/JAE-151981

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 48, no. 2-3, pp. 153-158, 2015