In the present study, various kinds of in-situ reinforcements were introduced into Ti-V-Al shape memory alloys to enhance strength. The results revealed that the addition of TiB₂ and B₄C ceramic particles can form TiB whiskers and a mixture of TiB whiskers and TiC particles, respectively. Meanwhile, both TiB₂ and B₄C ceramic particles can refine grain size of Ti-V-Al shape memory alloys. The addition of TiB₂ and B₄C ceramic particles caused an increase in martensitic transformation temperature. The grain refinement and introduction of in-situ TiB whisker and TiC particles resulted in an obvious improvement in strength without sacrificing the strain recovery characteristics. For comparison, the addition of B₄C ceramic particles can obtain high-performance Ti-V-Al shape memory alloys.

在本研究中，将各种原位增强材料引入 Ti-V-Al 形状记忆合金中以提高强度。结果表明，添加TiB ₂和B ₄ C陶瓷颗粒可以分别形成TiB晶须和TiB晶须与TiC颗粒的混合物。同时，TiB ₂和B ₄ C陶瓷颗粒均能细化Ti-V-Al形状记忆合金的晶粒尺寸。添加TiB ₂和B ₄ C陶瓷颗粒导致马氏体转变温度升高。晶粒细化和原位引入TiB 晶须和 TiC 颗粒在不牺牲应变恢复特性的情况下显着提高了强度。作为比较，添加B ₄ C陶瓷颗粒可以获得高性能的Ti-V-Al形状记忆合金。