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- Title
Magnetostriction of 〈100〉 oriented Fe-Ga rods with large diameter.
- Authors
Li, Ji-Heng; Gao, Xue-Xu; Xiao, Xi-Ming; Bao, Xiao-Qian; Zhang, Mao-Cai
- Abstract
The FeGa alloy rods with 〈100〉 preferential orientation was prepared by directional solidification method. The dimension of oriented FeGa rods is large up to 40 mm greater than diameter in previous investigations of 3-10 mm. The growth direction of columnar grain is nearly parallel to the solidification direction of rods. The deviation angle between axial direction and 〈100〉 direction of columnar crystal was investigated by method of electron backscattering diffraction, and the deviation is smaller than 10°. The large columnar grain and 〈100〉 preferential orientation along axial direction of rods could be attributed to the calm solid-liquid interface during solidification process that is difficultly formed due to electromagnetism agitation in induction heating zone-melting method. The corresponding magnetostriction is large up to 290 × 10 under pre-compressive press of 15 MPa.
- Publication
Rare Metals, 2015, Vol 34, Issue 7, p472
- ISSN
1001-0521
- Publication type
Article
- DOI
10.1007/s12598-013-0127-9