An experimental evaluation of the microstructure, mechanical and functional fatigue properties of the Cu-11.70Al-0.45Be doped with Bx (x = 0.05, 0.10, 0.12, and 0.14 wt%) SMA wires has been carried out. The experiments were performed to investigate microstructure, phase/precipitates, and transformation temperatures for both as-cast and wire samples. Furthermore, tensile properties, shape recovery ratio, and functional fatigue evaluation have also been carried out for the wire samples. The investigation shows that the addition of the minor amount of boron and secondary processes involved during the specimen preparation induced excellent grain refinement. The addition of boron decreased transformation temperatures; however, there was not a considerable change observed due to the secondary process. It was observed that tensile properties increases with the boron addition, and complete shape recovery was observed for all the selected alloys. Finally, functional fatigue tests were conducted under constant stress condition and observed that the number of cycles until the failure has increased and more distance recovery was achieved with an increase in boron doping.

对掺杂 Bx（x = 0.05、0.10、0.12 和 0.14 wt%）SMA 线的 Cu-11.70Al-0.45Be 的微观结构、机械和功能疲劳性能进行了实验评估。进行实验以研究铸态和线材样品的微观结构、相/沉淀物和转变温度。此外，还对线材样品进行了拉伸性能、形状恢复率和功能疲劳评估。研究表明，在试样制备过程中加入少量的硼和二次加工，可引起极好的晶粒细化。硼的加入降低了转变温度；然而，由于二次过程，没有观察到显着的变化。观察到拉伸性能随着硼的添加而增加，并且观察到所有选定合金的完全形状恢复。最后，在恒定应力条件下进行功能性疲劳测试，观察到随着硼掺杂的增加，直到失效的循环次数增加并且实现了更多的距离恢复。