High saturation magnetic induction and low magnetostriction of a novel ferritic Fe-Ti alloy compared to a non-oriented silicon steel
| Autor: | Hugo Ricardo Zschommler Sandim, Mateus Botani de Souza Dias, G.O. Fulop, Cristina Bormio-Nunes |
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| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
INDUÇÃO MAGNÉTICA Materials science Stator Alloy Magnetostriction 02 engineering and technology engineering.material Coercivity 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Electronic Optical and Magnetic Materials law.invention Electromagnetic induction Magnetization law Permeability (electromagnetism) 0103 physical sciences engineering Composite material 0210 nano-technology Electrical steel |
| Zdroj: | Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP |
| ISSN: | 0304-8853 |
| DOI: | 10.1016/j.jmmm.2020.167702 |
| Popis: | Non-oriented (NO) silicon steel is used in magnetic cores of electrical machines due to its good magnetic and electric properties, such as high electric resistivity, high permeability, low coercive field, and low power losses. However, the noise and vibration, caused by magnetostriction, may lead to early failure of the equipment. Since the stator core is submitted to compressive stresses due to the shrinking fitting, positive values of magnetostriction are not appropriate. Fe-Ti alloys have low negative magnetostriction values making them strong candidates for replacing Fe-Si alloys. In this work, Fe-3wt.%Ti alloy was cold rolled down to 0.3 mm of thickness and annealed for 48 h at 850 °C. Magnetization showed to be 7 kA/m (0.09 T) higher than Fe-Si, and the magnetostriction is lower than 1 ppm up to 1.5 T while for Fe-Si is higher than 1 ppm for |
| Databáze: | OpenAIRE |
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