Article ID Journal Published Year Pages File Type
1623258 Journal of Alloys and Compounds 2009 4 Pages PDF
Abstract

For optimizing the magnetostriction in Fe–Ga alloys, a novel tensile-stress heat-treatment method has been used for textured polycrystalline rods. Utilizing the consistency between the intrinsic magnetocrystalline anisotropy and the shape anisotropy in the textured structure, a large magnetostriction up to 200 ppm has been obtained in an alloy with composition Fe83Ga17 without application of pre-stress. Such samples also exhibit large pre-stress adjustable magnitude, about 90% for total magnetostriction. Due to the complete alignment of the magnetic moments, a magnetostriction contribution of the bcc (A2) phase can be ruled out and the magnetostrictive behavior of the Fe3Ga (DO3) phase has been investigated in detail.

Related Topics
Physical Sciences and Engineering Materials Science Metals and Alloys
Authors
, , , , , , , , , ,