Abstract There is a resurgence of interest in the elastocaloric (EC) effect of shape memory alloys (SMAs). The temperature change associated with the EC effect can be substantial, far exceeding those observed in well-known electrocaloric and magnetocaloric materials. The major driver of the EC effect is the entropy change of transformation. Historically the EC effect under superelasticity has been studied at mainly 25 °C. The current paper considers six SMAs across a variety of test temperatures, focusing not only on the EC cooling capability but also on three important factors for practical application: the role of stress/thermal hysteresis, Md temperature, and fatigue.

中文翻译：

---

极端的弹性热量效应

摘要 形状记忆合金 (SMA) 的弹性热量 (EC) 效应重新引起人们的兴趣。与 EC 效应相关的温度变化可能很大，远远超过在众所周知的电热和磁热材料中观察到的变化。EC 效应的主要驱动因素是变换的熵变。从历史上看，超弹性下的 EC 效应主要在 25 °C 下进行研究。当前论文考虑了各种测试温度下的六个 SMA，不仅关注 EC 冷却能力，还关注实际应用的三个重要因素：应力/热滞后的作用、Md 温度和疲劳。