中文摘要：

TiNi51/TiNi50.2 三明治的内部磨擦上的老化时间，测量频率和紧张振幅的影响合成被调查。DSC 和内部磨擦大小被采用描绘样品。标本的二座内部磨擦山峰被证实相应于 TiNi51 和 TiNi50.2 部件的反向的转变分别地。内部磨擦作为在不同测量频率的温度的功能被介绍，两座内部磨擦山峰的高度与减少的频率增加了，这被发现；然而，相应于 TiNi50.2 部件的增加比 TiNi51 部件的大。而且， TiNi/TiNi 合成合金的内部磨擦与增加测量紧张振幅减少了。TiNi51 部件的内部磨擦山峰的高度与增加变老的时间增加了，而 TiNi50.2 部件的没显著地变化。TiNi51 的内部磨擦的增加看起来与形成和生长被联系在变老的过程期间猛抛。

英文摘要：

The influence of aging time, measuring frequency and strain amplitude on the internal friction of TiNi51/TiNi50.2 sandwich composite was investigated. The DSC and internal friction measurements were employed to characterize the sample. The two internal friction peaks of the specimen were confirmed corresponding to the reverse transformation of TiNi51 and TiNi50.2 component, respectively. The internal friction as a function of the temperature at different measuring frequencies was presented and it was found that the height of both internal friction peaks increased with decreasing frequency; however, the increase corresponding to TiNiso.2 component was larger than that of TiNi51 component. Furthermore, the internal friction of the TiNi/TiNi composite alloy decreased with increasing the measuring strain amplitude. The height of internal friction peak of TiNi51 component increased with increasing the aging time, whereas that of the TiNi50.2 component did not change significantly. The increase in internal friction of TiNi51 appeared to be associated with the formation and growth of precipitate during the aging process.