Microstructural and Magnetic Properties of a Fe-Co-Ni-Al-Ti-Cu Alloy

Microstructural and Magnetic Properties of a Fe-Co-Ni-Al-Ti-Cu Alloy

The present work describes the development of Fe-Co-Ni-Al-Ti-Cu permanent magnets. Magnetic and microstructural studies were carried out using microscopy, magnetometery and X-ray diffraction techniques. The results indicate that both microstructural and magnetic properties are sensitive to the heat...

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Veröffentlicht in:Key engineering materials 2010-01, Vol.442, p.236-241
Hauptverfasser: Akbar, Shakeel, Ahmad, Z., Farooque, M.
Format: Artikel
Sprache:eng
Schlagworte:
Alignment
Annealing
Coercive force
Crystallography
Diffraction
Elongation
Ferromagnetism
Ferrous alloys
Heat treatment
Iron
Magnetic induction
Magnetic properties
Microscopy
Microstructure
Nanocomposites
Nanomaterials
Nanostructure
Permanent magnets
Saturation (magnetic)
X-rays
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Beschreibung
Zusammenfassung:The present work describes the development of Fe-Co-Ni-Al-Ti-Cu permanent magnets. Magnetic and microstructural studies were carried out using microscopy, magnetometery and X-ray diffraction techniques. The results indicate that both microstructural and magnetic properties are sensitive to the heat treatment conditions. Magnetic properties in the studied alloys could be improved by controlling the annealed state microstructure and by efficiently aligning and elongating the nano-structured ferromagnetic α1 particles in crystallographic directions. The best magnetic properties in the alloy Fe-34.7Co-15.3Ni-8.3Al-5.4Ti-3.9Cu is obtained as coercive force (Hc) of 1528Oe, residual magnetic induction (Br) of 7105G, saturation magnetization (Bs) of 19060G and maximum energy product ((BH)max) of 3.3MGOe.
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.442.236