We present the results of investigation of the structure and properties of four titanium alloys of the Ti–Nb–Mo system after their subsolidus annealing and annealing with quenching from 870°С. The obtained results indicate that heat treatment strongly affects the phase composition, microstructure, microhardness, Young’s modulus, and elastic properties of investigated specimens. The annealed alloys are two-phase α′ + β alloys and their Young’s modulus is close to Young’s modulus of pure titanium (87–100 GРа). Quenching leads to the formation of the α′′ -phase and the amount of β -phase becomes insignificant. As a result, the microhardness somewhat decreases and Young’s modulus becomes ∼ 1.5 times lower.

我们介绍了Ti-Nb-Mo系统的四种钛合金的亚固相退火和870°С淬火退火后的组织和性能的研究结果。所得结果表明，热处理强烈影响所研究样品的相组成，显微组织，显微硬度，杨氏模量和弹性。退火合金是两相α'+β合金，它们的杨氏模量接近纯钛的杨氏模量（87-100GРа）。淬火导致α''相的形成，β相的量变得微不足道。结果，显微硬度有所降低，杨氏模量降低约1.5倍。