In this work, a Ti–29Nb–13Ta–4.6Zr–xO Gum Metal with two significantly different oxygen levels (388 and 3570 ppm) was investigated during deformation. The alloys were compressed during in situ high-energy X-ray diffraction using three different strain rates, 10−4, 10−3, and 10−1 s−1, in order to evaluate their influence on phase stability and mechanical properties. The influence of oxygen on the deformation process was also studied. Deformation takes place by twinning, stress-induced, and reverse martensitic transformation and was observed, for some samples, a spinodal decomposition of the β-phase during elastic deformation. The mechanical properties were similar for the different rates employed when considering the same oxygen level. The alloy with a higher amount of oxygen, however, showed a substantial increase in mechanical strength, with a yield strength of around 680 MPa, which is more than three times higher than for the specimen with 388 ppm of oxygen.

在这项工作中，研究了在变形过程中具有两个明显不同的氧含量（388和3570 ppm）的Ti–29Nb–13Ta–4.6Zr– x O口香糖金属。这些合金期间被压缩在原位高能量X射线衍射使用三个不同的应变率，10 -4，10 -3，和10 -1小号-1，以评估它们对相稳定性和机械性能的影响。还研究了氧气对变形过程的影响。变形是通过孪生，应力诱发和反马氏体相变而发生的，并且在某些样品中观察到了弹性变形过程中β相的旋节线分解。当考虑相同的氧气含量时，所采用的不同速率的机械性能相似。然而，含氧量较高的合金显示出机械强度的显着提高，屈服强度约为680 MPa，是含氧量为388 ppm的试样的三倍以上。