Transformation behaviour with thermal cycling in NiTi alloys
Transformation behaviour with thermal cycling in NiTi alloys
复制标题
DOI：
10.1016/s0925-8388(02)00982-9
复制
发表时间：
2003-02
影响因子：
6.2
通讯作者：
H. Matsumoto
中科院分区：
文献类型：
--
作者：
H. Matsumoto
采用差示扫描量热法研究了NiTi合金的相变行为，以揭示热循环对相变的影响。热循环倾向于降低高温相和低温相之间的转变温度，并在冷却时稳定中间相，导致两阶段转变，而加热时的反向转变仍然是一阶段转变。由于这些热循环的影响取决于成分和变形，因此认为缺陷在NiTi合金的复杂行为中起着内在的作用。
The transformation behaviour of NiTi alloys were investigated by differential scanning calorimetry in order to reveal the effects of thermal cycles with the repetition of the transformation. The thermal cycles tend to lower the transformation temperature between the high and low temperature phases and to stabilize the intermediate phase during cooling to result in a two-stage transformation, while the reverse transformation during heating remains a one-stage transformation. Because these effects of the thermal cycles depend on the composition and the deformation, it is thought that defects play an intrinsic role in the complicated behaviour of NiTi alloys.