AFM/MFM hybrid nanocharacterization of martensitic transformation and degradation for Fe-Pd shape memory alloy
AFM/MFM hybrid nanocharacterization of martensitic transformation and degradation for Fe-Pd shape memory alloy
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Fe-Pd 形状记忆合金马氏体转变和退化的 AFM/MFM 混合纳米表征
DOI：
10.1117/12.484274
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发表时间：
2003
期刊：
影响因子：
--
通讯作者：
M. Taya
中科院分区：
文献类型：
--
作者：
Takayuki Suzuki;Kohei Nagatani;K. Hirano;T. Teramoto;M. Taya
采用原子力显微镜（AFM）/磁力显微镜（MFM）混合纳米表征技术研究了Fe-Pd铁磁形状记忆合金的马氏体相变和退化特性。在AFM中，马氏体相变是通过马氏体片表面形貌的变化来检测的。在MFM中，通过磁畴结构的变化来检测马氏体相变。该技术的优点是可以在微观和纳米尺度的小区域测量马氏体相变特性，如马氏体相变温度和逆相变温度。通过AFM和MFM图像的变化，研究了循环载荷下马氏体相变的退化特征。在AFM图像中，马氏体片的表面形貌变得平坦，在MFM图像中，磁畴结构的形态变得不聚焦。结果表明，复合纳米表征技术是一种高灵敏度的评价Fe-Pd铁磁形状记忆合金材料性能退化的方法。
Martensitic transformation and degradation characteristics for Fe-Pd ferromagnetic shape memory alloy were investigated by the developed AFM (Atomic Force Microscope)/MFM (Magnetic Force Microscope) hybrid nano-characterization technique. In AFM martensitic transformation was detected by the changes of surface topography of martensite plates. In MFM martensitic transformation was detected by the changes of magnetic domain structures. This technique has an advantage that martensitic transformation characteristics such as martensitic transformation temperature and reverse transformation temperature can be measured at microscopic and nanoscopic small area. Degradation characteristics of martensitic transformation under cyclic loading were also detected by the changes of AFM and MFM images. In AFM images surface topography of martensite plates became flat and in MFM images the morphology of magnetic domain structures became unfocused under cyclic loading. Then it was found that the hybrid nano-characterization was very high sensitive technique to evaluate degradation for Fe-Pd ferromagnetic shape memory alloy.