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Influence of Electrical pulse on shape memory effects and phase transition of FeMnSiCrNi shape memory alloy

机译：电脉冲对Femnsicrni形状记忆合金形状记忆效应和相变的影响

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This paper studies the electric-pulse applied in the solidification process of the FeMnSiCrNi shape memory alloy, by applying different pulse frequency and polarity on the FeMnSiCrNi shape memory alloy to improve the shape memory effects. The results show: electric-pulse was conducive to FeMnSiCrNi alloys grain refinement, the alloy can improve the shape memory effect of Compression deformation, the absolute shape recovery rate is improved from 2% to 3.2% which is not treated by the electric-pulse; when the liquid metal was connected with the anode of the pulse, it is easy to get the columnar grain structure and the column spacing is smaller; when the liquid metal was connected with the cathode of the pulse, the column spacing is larger; Columnar grain is conducive to FeMnSiCrNi alloy specimens compressed shape recovery, it has the smaller column spacing, yet the shape recovery rate is higher; equiaxed is favor in bending back, columnar crystals impede the bending response.
机译：本文通过在幻线频率和幻线形状记忆合金上施加不同的脉冲频率和极性来研究幻线型记忆合金的凝固过程中施加的电动脉冲，以改善形状记忆效应。结果表明：电脉冲有利于幻线合金谷物细化，合金可以提高压缩变形的形状记忆效应，绝对形状回收率从2％升高到3.2％，电脉冲不处理。当液态金属与脉冲的阳极连接时，易于获得柱状晶粒结构，柱间距较小;当液态金属与脉冲阴极连接时，柱间距较大;柱状颗粒有利于Femnsicrni合金标本压缩形状回收，具有较小的柱间距，但形状恢复速率较高; Equiaxed在弯曲后面有利于弯曲，柱状晶体妨碍弯曲响应。

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