Published January 22, 2016
| Version v1
Publication
Structure and magnetic properties of Fe–Nb–B amorphous/nanocrystalline alloys produced by compaction of mechanically alloyed powders
Description
Mechanical alloying of Fe75Nb10B15 and Fe85Nb5B10 systems has been performed from an initial
mixture of elemental powders. A bcc supersaturated solid solution is developed during milling for
both alloys. However, Fe75Nb10B15 alloy also develops an amorphous phase, which amount
increases with milling time. Milled powder samples were compacted at 7.7 GPa at different
temperatures. Scanning electron microscopy images show that the presence of amorphous phase
enhances the quality of compaction. Compaction at 823 K preserves both microstructure and
magnetic properties of as-milled powders in both alloys. Compaction at 973 K affects mainly the
crystalline fraction of the alloy with 10 at. % Nb. Compaction at 1273 K yields the formation of bcc
Nb and fcc Fe23B6 phases, which magnetically harden the material.
Additional details
Identifiers
- URL
- https://idus.us.es/handle/11441/33142
- URN
- urn:oai:idus.us.es:11441/33142