Study on the Microstructure and Mechanical Properties of Dynamic Recrystallization of Metastable β Titanium Alloy

Abstract:

A novel type of titanium alloy was investigated in this article. The microstructure and mechanical properties of Ti-3573 and Ti-3873 titanium alloys were observed and measured after 20% hot deformation, respectively. The results shown that both titanium alloys occurred dynamic recrystallization (DR) during hot deformation. The tensile strength of Ti-3873 titanium alloy was better than that of Ti-3573 titanium alloy. Both titanium alloys have fine secondary α-phase which appeared granular or acicular near the β-grain boundaries or within the β-grain after hot deformation. Better tensile strength (847 MPa) of Ti-3873 titanium alloy is contributed to the higher content of β-phase stable element (Mo). The improvement plasticity (12 %) of Ti-3573 titanium alloy is due to the occurrence of dynamic recrystallization during hot deformation.

• Periodical: Materials Science Forum (Volume 1064)
• Pages: 177-182
• DOI: https://doi.org/10.4028/p-m77pv9
• Online since: June 2022
• Authors: Kun Qi Lv, Wen Hao Cai, Zhuang Li*, Zhi Sheng Nong, Li Zhang
• Keywords: Dynamic Recrystallization, Hot Deformation, Mechanical Properties, Ti-3573 Titanium Alloy, Ti-3873 Titanium Alloy

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