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首页> 外文期刊>Materials Science & Engineering. A, Structural Materials: Properties, Microstructure and Processing >Experimental study on the anisotropic behavior of textured NiTi pseudoelastic shape memory alloys
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Experimental study on the anisotropic behavior of textured NiTi pseudoelastic shape memory alloys

机译：NiTi伪弹性形状记忆合金各向异性行为的实验研究

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摘要

The pre-textured NiTi shape memory alloys (SMAs) are used in the mechanical testing. The pseudoelastic effect and the anisotropic behavior of NiTi SMA are observed. The material behaviors such as hysteresis area in loading-unloading cycle, austenite Young's modulus, martensite transformation stress and the recoverable pseudoelastic transformation strain are analyzed experimentally. The results show that the material behaviors of the textured NiTi SMAs are all closely related to the material's orientation to the rolling direction. The transformation stress and Young's modulus get the maximum values at the same orientation of the cutting direction to the rolling direction. For the recoverable pseudoelastic transformation strain and hysteresis area, they get the maximum values at the same orientation but the angle is different from that for the transformation stress and Young's modulus. It is also suggested that the user control the texture of the material and optimal use the SMAs according to the practical applications.
机译：预制的NiTi形状记忆合金（SMA）用于机械测试。观察到NiTi SMA的拟弹性效应和各向异性行为。实验分析了材料在加载/卸载过程中的滞后面积，奥氏体杨氏模量，马氏体转变应力和可恢复的拟弹性转变应变等行为。结果表明，织构化的NiTi SMA的材料行为都与材料对轧制方向的取向密切相关。相变应力和杨氏模量在切削方向与轧制方向相同的方向上达到最大值。对于可恢复的拟弹性转变应变和滞后面积，它们在相同方向上获得最大值，但角度与转变应力和杨氏模量不同。还建议用户根据实际应用控制材料的质地并优化使用SMA。

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