真空磁场热处理对Fe-Ga-Al合金磁致伸缩的影响

Vacuum(2010)

Cited 23|Views4
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Abstract
采用电弧炉熔炼方法得到Fe82Ga18-xAlx(x=3,9,12)合金的多晶样品。利用X射线衍射(XRD)和金相观察对合金的相组成进行分析,并对其磁致伸缩系数进行测量。经过真空磁场热处理后,对Fe-Ga-Al合金的结构和磁致伸缩性能进行研究。结果表明,真空磁场热处理后Fe-Ga-Al合金磁致伸缩系数均有提高,其中Fe82Ga9Al9合金经磁场热处理后,磁致伸缩达到114×10-6;Fe82Ga15Al3合金经磁场热处理后,其磁致伸缩增幅最大,比处理前增加165%。
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Key words
Fe-Ga-Al alloys,magnetostriction,magnetic heat treatment,vacuum
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