Magnetic anisotropy in Fe-25Cr-12Co-1Si alloy induced by external magnetic field

• Published in: Transactions of Nonferrous Metals Society of China Vol. 17; no. 2; pp. 346 - 350
• Main Author: 甄良 孙学银 徐成彦 高润生 徐仁根 秦禄昌
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.04.2007; School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China%School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China; Department of Physics and Astronomy, University of North Carolina at Chapel Hill, Chapel Hill,NC 27599-3255, USA%Department of Physics and Astronomy, University of North Carolina at Chapel Hill, Chapel Hill,NC 27599-3255, USA; Curriculum in Applied and Materials Sciences, University of North Carolina at Chapel Hill, Chapel Hill,NC 27599-3255, USA
• Subjects: Fe-25Cr-12Co-1Si合金; Fe-Cr-Co alloy; magnetic anisotropy; magnetic properties; microstructure; 外加磁场; 磁各向异性; Fe-Cr-Co alloy; magnetic anisotropy; microstructure; magnetic properties
• ISSN: 1003-6326
• DOI: 10.1016/S1003-6326(07)60096-X

Structural and magnetic properties of Fe-25Cr-12Co-1Si alloy thermo-magnetically treated under different external magnetic field conditions were investigated. Orientation and morphology of the ferromagnetic α1 phase embedded in α2 phase matrix before and after step ageing are characterized by transmission electron microscope（TEM）. The results show that the ellipsoidal particles of ferromagnetic al phase are aligned along the direction of external magnetic field during isothermal magnetic ageing. Approximately 28% of the total coercivity can be attributed to the shape anisotropy of al phase particles induced by external magnetic field for Fe-25Cr-12Co-1Si alloy thermo-magnetically treated with a parallel magnetic field.