添加Nb改善了Fe81Ga19合金的塑性,采用热轧和冷轧相结合的轧制工艺制备出厚度为0.6 mm的(Fe81Ga`19)+1%Nb(原子分数)合金薄板.研究了(Fe81 Ga19)+1%Nb合金轧态和退火态薄板的织构及磁致伸缩效应.结果表明:合金的磁致伸缩与样品的织构密切相关,再结晶织构取决于热处理工艺.轧态织构以{111}面织构和近似的{001}110旋转立方织构为主,样品轧向的磁致伸缩系数λ//=26×10<-6>.在1250和1300℃保温2 h后水淬样品的织构分别呈现为近似的{011}<100)Gauss织构和单一{001}<100>立方织构,其磁致伸缩(3/2)ARD分别达到106×10-6和134×10-5.
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