Abstract
The novel titanium alloys were investigated in this article. The Ti-3573 and Ti-3873 titanium alloys were cold rolled and aged for different times at 650°C. The microstructure and mechanical properties of the samples were observed and measured, respectively. The results show that the mechanical properties of Ti-3873 alloys were better than those of Ti-3573 alloys. The cold rolling accelerated the α phase precipitation effectively. Stress-induced martensitic transformation was observed in both titanium alloys after cold rolling and aging treatment. Better aging strengthening effect can be obtained for the Ti-3873 titanium alloy which contains more molybdenum element, it is attributed to the role of Mo as β phase stable elemen. The tensile strength of Ti-3873 titanium alloy after aging for 3h reached the maximum value (1314MPa).
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