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Metals 2017, 7(2), 36; doi:10.3390/met7020036

Effect of Initial Oriented Columnar Grains on the Texture Evolution and Magnetostriction in Fe–Ga Rolled Sheets

1
State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China
2
Department of Chemistry-Ångström Laboratory, Uppsala University, Uppsala 75121, Sweden
3
Grirem Advanced Materials Co., Ltd., Beijing 100088, China
*
Author to whom correspondence should be addressed.
Academic Editor: Hugo F. Lopez
Received: 24 November 2016 / Revised: 2 January 2017 / Accepted: 20 January 2017 / Published: 27 January 2017
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Abstract

The effects of initial oriented columnar grains on the texture evolution and magnetostriction in (Fe83Ga17)99.9(NbC)0.1 rolled sheets were investigated. The recrystallization texture evolution exhibited the heredity of initial orientations, concerning the formation of cube and Goss textures in the primary recrystallized sheet for the columnar-grained sample. Moreover, the growth advantage of Goss grains was more obvious than that of cube grains during the secondary recrystallization process. Because of the combined effect of this and Nb-rich precipitates as inhibitors, a sharp Goss texture and very large Goss grains were achieved in the secondary recrystallized sheet for the columnar-grained sample. For comparison, the secondary recrystallization in the equiaxed-grained sample was not fully developed although there were Nb-rich precipitates as inhibitors. We think this could be ascribed to the large particle size and premature coarsening of precipitates. Magnetostriction of the secondary recrystallized columnar-grained sheet was up to 232 ppm owing to the ideal Goss texture and quite large grain size. As for the equiaxed-grained sample, the magnetostriction was only 163 ppm in the secondary recrystallized sheet. View Full-Text
Keywords: magnetostriction; Fe–Ga alloy; texture; columnar-grains; rolling magnetostriction; Fe–Ga alloy; texture; columnar-grains; rolling
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Li, J.; Yuan, C.; Qi, Q.; Bao, X.; Gao, X. Effect of Initial Oriented Columnar Grains on the Texture Evolution and Magnetostriction in Fe–Ga Rolled Sheets. Metals 2017, 7, 36.

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