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Giant Strain Due to Magnetic-Field-Induced Martensitic Transformation in NiMnGa Melt-Spun Ribbons

机译:由于磁场诱导的NIMNGA熔融纺丝带磁场诱导的马氏体转化导致的巨株

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Thin ribbons of ferromagnetic shape-memory alloy Ni_(53)Mn_(24)Ga_(23) were prepared by rapid melt quenching and their martensitic and magnetic structure was examined by polarized light microscopy. Multipoint bending method was proposed to study the magnetomechanical and thermal response of the samples. A giant (1.2%) bending strain, due to magnetic field-induced martensitic transformation, has been produced at a constant temperature by the application of a magnetic field of 6 T.
机译:通过快速熔融淬火制备薄丝丝状晶体记忆合金Ni_(53)Mn_(24)Ga_(23),并通过偏振光显微镜检查它们的马氏体和磁性结构。提出了多点弯曲方法来研究样品的磁动力和热响应。由于磁场诱导的马氏体转化,巨型(1.2%)弯曲应变通过施加6吨的磁场而在恒定温度下生产。

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