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首页> 外文会议>PRICM 7;Pacific Rim International Conference on Advanced Materials and Processing >Compression Behavior and Texture Development of Polymer Matrix Composites Based on NiMnGa Ferromagnetic Shape Memory Alloy Particles
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Compression Behavior and Texture Development of Polymer Matrix Composites Based on NiMnGa Ferromagnetic Shape Memory Alloy Particles

机译：基于NiMnGa铁磁形状记忆合金颗粒的聚合物基复合材料的压缩行为和织构发展

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摘要

Deformation behavior and texture development of NiMnGa ferromagnetic shape memory alloy (FSMA) particles embedded polymer composites were investigated by compression tests and X-ray diffraction pole-figure analysis (XRD-PF). Both the NiMnGa/silicone and NiMnGa/epoxy composites exhibited a characteristic three-stage deformation which is often seen in shape memory alloys due to martensite variant reorientation. XRD-PF revealed that (004) texture was developed in the compressed NiMnGa/silicone due to the retention of martensite variant reorientation. On the other hand, significant texture change was not recognized in the compressed NiMnGa/epoxy. Rearranged martensite variants was kept after unloading in silicone matrix having low Young's modulus, but reverse reorientation occurred in epoxy matrix with high Young's modulus. The rearrangement behavior of martensite variants is strongly affected by elastic properties of matrix.
机译：通过压缩试验和X射线衍射极图分析（XRD-PF）研究了NiMnGa铁磁形状记忆合金（FSMA）颗粒嵌入的聚合物复合材料的变形行为和织构发展。 NiMnGa /硅氧烷和NiMnGa /环氧树脂复合材料均表现出特征性的三阶段变形，这在形状记忆合金中经常会由于马氏体变体重新取向而见到。 XRD-PF表明，由于保留了马氏体变体取向，在压缩的NiMnGa /硅氧烷中形成了（004）织构。另一方面，在压缩的NiMnGa /环氧树脂中未发现明显的织构变化。卸载后，重排的马氏体变体保留在低杨氏模量的硅树脂基体中，但在高杨氏模量的环氧基体中发生反向重新定向。马氏体变体的重排行为受基质弹性特性的强烈影响。

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