Research on development and application of iron-based ferromagnetic shape memory alloys

为了同时提高Fe-Cr-Si-Mn-R （R：稀土）的铁磁性和形状记忆性能，我们进行了研究，并确定了最佳的成分和热处理条件。在此基础上，建立了温度和应力对磁性能的影响模型，实现了执行器的计算机辅助有限元设计。此外，采用单辊熔融纺丝技术研制了具有形状记忆层和磁性层的双层带，并明确了其制备条件。

We investigated to improve simultaneously ferromagnetic and shape memory properties of Fe-Cr-Si-Mn-R (R: rare earth), and optimal compositions and suitable heat-treatment conditions were clarified. In addition, the magnetic properties were numerically modeled as a function of temperature and stress and computer aided finite element designing of actuators was enabled. Moreover, bilayer ribbons, which have both shape memory layer and magnetic layer were newly developed by single-roll melt spinning technique and their fabrication conditions were made clear.