Author(s)

Xiangxiang Gao and Haiyang Li

Corresponding Author

Xiangxiang Gao

ABSTRACT

A large number of fine composite nanometer-sized inhibitors are obtained in Fe81Ga19 alloy sheet by precipitating during hot rolling. The inhibitor particle sizes distributed in primary recrystallization sheet are mainly in the range of 20-60 nm. Composite nanometer-sized precipitates (MnS and Cu2S) as inhibitors of secondary recrystallization can effectively pin the matrix grains to grow up. During secondary recrystallization annealing, centimeter-sized Goss grains are produced by precisely controlling the speed of the coarsening of precipitates and intrinsic mobility of Goss grains. Finally, the magnetostriction coefficient up to 265 ppm is obtained.

KEYWORDS

Inhibitor, goss, particle pinning, Fe81Ga19 alloy