|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Advanced Magnetic Materials for Energy and Power Conversion Applications
||Engineering of Magnetic Properties of Co- and Fe-rich Microwires by Stress Annealing
||Arcady Zhukov, Mihail Ipatov, Juan Maria Blanco, Valentina Zhukova
|On-Site Speaker (Planned)
Amorphous magnetic microwires have attracted great attention owing to excellent properties like magnetic bistability, excellent magnetic, mechanical and corrosion properties, Giant Magnetoimpedance (GMI) effect. Excellent magnetic softness and GMI effect have been reported for Co-rich microwires. Less expensive Fe-rich microwires are preferable for the applications, but they exhibit high magnetostriction coefficient and hence present low GMI effect.
We present our recent experimental results on influence of stress- annealing on magnetic properties and GMI effect of Fe- and Fe-Co based glass-coated microwires.
We observed that Fe-rich microwires annealed under stress at appropriate annealing conditions (time and temperature) can present low coercivity, considerable magnetic softening and enhanced GMI effect.
For interpretation of observed changes of hysteresis loops after stress annealing we considered internal stresses relaxation and different mechanisms of stress-induced anisotropy.
Observed versatile properties of stress annealed glass-coated microwires with enhanced and tunable soft magnetic properties make them suitable for technological applications.
||Planned: Supplemental Proceedings volume