New Method of Measurement of the Magnetoelastic Characteristics for Tensile Stresses |
| J. Salacha, R. Szewczyka, A. Bieńkowskia, A. Kolano-Burianb, and M. Falkowskia
aInstitute of Metrology and Biomedical Engineering, Warsaw University of Technology, św. A. Boboli 8, 02-525 Warszawa, Poland bInstitute of Non-ferrous Metals, Sowińskiego 5, 44-100 Gliwice, Poland |
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| The paper presents a novel method of measurements of tensile stress dependence of the magnetic characteristics of ring-shaped cores made of soft amorphous alloys. In the presented method, the uniform: tensile stress was applied perpendicularly to the magnetizing field direction. Magnetoelastic core with closed magnetic circuit was fixed on the non-magnetic backings enabling the conversion: of compressive force into tensile stresses as well as it enables the core to be winded by magnetizing and sensing windings. Magnetoelastic characteristics measured under tensile stress, for Fe25Ni55Si10B10 alloy annealed in temperature 350°C for 1 h, are presented in this paper. The presented results indicate high tensile stress sensitivity of Fe25Ni55Si10B10 alloy. Moreover, together with magnetoelastic characteristics for compressive stresses (presented previously in the literature), the describes results create possibility of further development of models of the magnetoelastic effects in amorphous alloys. |
| DOI: 10.12693/APhysPolA.118.775 PACS numbers: 75.80.+q, 75.50.Kj |