Comparison of the Microstructure and Mechanical Properties of Ti-3573 and Ti-3873 Alloys after Cold Rolling and Aging Treatment

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).

• Periodical: Materials Science Forum (Volume 1026)
• Pages: 3-8
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.1026.3
• Online since: April 2021
• Authors: Wen Hao Cai, Zhuang Li*, Kun Qi Lv, Li Zhang
• Keywords: Aging Treatment, Cold Rolling, Stress-Induced Martensite, Ti-3573 Titanium Alloys, Ti-3873 Titanium Alloys

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