Abstract In this work, the V40Ni31Ti29 alloy wires were acquired by casting, forging and drawing process. The transformation characteristics of the V40Ni31Ti29 alloy wires with dual-scale bcc-V were studied. The results suggest that B19′→B2 transformation peak temperatures are higher than 100 °C and decreases with the increasing annealing temperature. The transformation temperature range is about 80 °C, which is much higher than the results of NiTiV alloys with lower V element content. We propose that this result is closely related to the differrent plastic deforamtion of V nanowires and micro fibers. The B2↔R transformation temperatures increased after tension loading-unloading cycle, which is ascribed to the plastic deformation of V fibers.

中文翻译：

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具有双尺度bcc-V纤维的NiTi-V复合材料的相变特性

摘要 本研究通过铸造、锻造和拉拔工艺获得了V40Ni31Ti29合金线材。研究了双尺度bcc-V的V40Ni31Ti29合金线材的相变特性。结果表明，B19′→B2相变峰温度高于100℃，并随着退火温度的升高而降低。转变温度范围约为 80 °C，远高于 V 元素含量较低的 NiTiV 合金的结果。我们认为该结果与 V 纳米线和微纤维的不同塑性变形密切相关。B2↔R 转变温度在拉伸加载-卸载循环后升高，这归因于 V 纤维的塑性变形。