Stress Dependence of Magnetostriction and Magnetic Properties in Electrical Steel

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Abstract:

The magnetostriction and magnetic properties of electrical steel are depended on the external stress. In this paper, a noncontact magneostriction measuring system using laser displacement meter with high resolution of 10 nm has been built. The grain-oriented electrical steel with dimensions 500 mm × 100 mm × 0.3 mm was measured between 20 MPa and-20 MPa. The magnetostriction and magnetic properties were highly sensitively to stress. A clear relationship between power loss and magnetostriction under stress was found, and the underlying mechanism has been discussed.

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97-101

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January 2015

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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