Secondary recrystallization of Goss texture in magnetostrictive Fe-Ga-based sheets

• 作者: Chao Yuan Xue-Xu Gao Ji-Heng Li Xiao-Qian Bao
• 来源期刊: 稀有金属（英文版）
• 年，卷（期）: 2020,（11）
• 所属期刊栏目: ORIGINAL ARTICLES
• 页码范围: 1288-1294
• 页数: 7页
• 语种: 英文
• DOI: 10.1007/s12598-014-0284-5

摘要

To avoid the unfavorable effect of precipitates on magnetic properties,low addition of 0.16 wt％NbC was employed in Fe82.5Ga17.5 alloy,and 0.27 mm sheets were successfully prepared by a rolling process.Strong Goss texture was obtained in Fe-Ga sheets by two-stage annealing process.The sulfur annealing in quartz ampoules was made to produce the preferred growth of Goss texture,with a 51％increase in the observed saturation magneto-striction,from 87 × 10-6 in the Ar-annealed sheets to 132 × 10-6 in the S-annealed sheets.However,large amounts of S-rich and Nb-rich precipitates were formed in the S-annealed sheets.High-temperature annealing of the S-annealed sheets at 1,200 ℃ under a flow hydrogen-argon atmosphere could effectively eliminate the precipi-tates and promote the selective growth of(110)grains due to the low surface energy.Large grains(～2 cm)of sec-ondary recrystallization were achieved in the final annealed sheets,with the maximum average saturation magneto-striction of 180 × 10-6.