The thermal and magnetic properties of the Fe89.8Ni1.5Si5.2B3C0.5 and Fe81B13Si14C2 amorphous alloys
This paper investigates the thermal and magnetic properties of two iron based amorphous alloys with different Fe-content: Fe89.8Ni1.5Si5.2B3C0.5 and Fe81B13Si14C2. The XRD results show that the thermal induced structural changes occur in the temperature range of 3000C - 8500C for the Fe8...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
International Institute for the Science of Sintering, Beograd
2015-01-01
|
| Series: | Science of Sintering |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/0350-820X/2015/0350-820X1503259K.pdf |
| Summary: | This paper investigates the thermal and magnetic properties of two iron based
amorphous alloys with different Fe-content: Fe89.8Ni1.5Si5.2B3C0.5 and
Fe81B13Si14C2. The XRD results show that the thermal induced structural
changes occur in the temperature range of 3000C - 8500C for the
Fe89.8Ni1.5Si5.2B3C0.5 amorphous alloy. The appearance of the first
crystallization peaks on DSC thermograms of Fe81B13Si4C2, amorphous alloy is
perceived already at 4500C. The initial magnetization curves of the as-cast
sample of the Fe89.8Ni1.5Si5.2B3C0.5 amorphous alloy, obtained at the
frequencies of 50 Hz, 400 Hz and 1000 Hz show the excellent match. The
maximum relative magnetic permeability for Fe89.8Ni1.5Si5.2B3C0.5 alloy
sample is achieved at magnetic field strength of about 20 A/m for all
frequencies, whereas the values of about 7000 were obtained at the
frequencies of 50 Hz and 400 Hz. The influence of frequency on total power
losses, for both alloys exhibits the increase of core losses with frequency
increase. The amorphous alloy Fe89.8Ni1.5Si5.2B3C0.5 toroidal core exhibits
about 3 time higher total power losses. [Projekat Ministarstva nauke
Republike Srbije, br. 172057] |
|---|---|
| ISSN: | 0350-820X 1820-7413 |