Abstract
The soft magnetic properties of nanocrystalline Fe-Nb-B and Fe-Nb-B-P alloys produced in the atmosphere by a melt-spinning method have been investigated. The nanocrystalline Fe100-x-yNbxBy ternary alloys show good soft magnetic properties, relative permeability (μ′) above 35000 at a frequency of 1 kHz and coercive force (Hc) below 5.0 Am-1, as well as high saturation magnetic induction (Bs) above 1.55 T in the compositional range of x = 6.5-6.7 and y = 9.3-10.0 at%. The soft magnetic properties of the nanocrystalline Fe-Nb-B ternary alloys are improve by 0.5-1.5 at% substitution of P for B, without decreasing their Bs. The magnetostriction (λs) value increases and the mean grain size of bcc-Fe phase (D) decreases slightly by substitution of P for B. The nanocrystalline Fe84Nb6.5B9P0.5 and Fe84Nb6.5B8.5P1 alloys show good soft magnetic properties, μ′ of 46000-47000 at a frequency of 1 kHz, Hc of 3.6-3.9 Am-1 and the core loss the 0.09 Wkg-1 at maximum induction (Bm) of 1.33 T and a frequency of 50 Hz as well as high Bs of 1.60 T, suggesting that these nanocrystallin Fe-Nb-B-P alloys are suitable for a core materials for pole transformers.
| Original language | English |
|---|---|
| Pages (from-to) | 1535-1539 |
| Number of pages | 5 |
| Journal | Materials Transactions |
| Volume | 42 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 2001 Jan 1 |
| Externally published | Yes |
Keywords
- Crystallization
- High saturation magnetic induction
- Iron-niobium-boron-phosphorous alloy
- Low core loss
- Nanocrystalline
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering