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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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Fe72.5Ga27.5合金的相结构和磁致伸缩性能
, PP. 483-486
Keywords: Fe-Ga合金,磁致伸缩,相结构,磁性能
Abstract:
系统地研究Fe72.5Ga27.5合金不同冷却方式和制备工艺条件下的相结构和磁致伸缩性能。结果表明该成分合金铸态、定向凝固态、快速凝固态和1000℃淬火时均保持D03结构。炉冷退火状态合金为D03和L12两相结构。炉冷时合金的饱和磁化强度达到140Am2/kg，淬火、定向凝固和快速凝固后，饱和磁化强度略低。快速凝固法制得的带材饱和磁场约为160kA/m，远小于其它状态试样的饱和场强。退火态试样的室温饱和磁致应变为-59ppm，铸态和定向凝固态均为53ppm。淬火态合金的室温饱和磁致应变达到114ppm。不同制备条件下Fe72.5Ga27.5合金的室温饱和磁致应变与其不同相结构密切相关。
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