The Study on Microstructure and Properties of a New Metastable Beta Titanium Alloy after Aging Treatment

Xun Yao; Shuang Jin Liu; Chun Xiang Cui; Fen Fei Cai

doi:10.4028/www.scientific.net/AMR.311-313.782

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 311-313The Study on Microstructure and Properties of a...

The Study on Microstructure and Properties of a New Metastable Beta Titanium Alloy after Aging Treatment

Abstract:

New metastable beta titanium alloy Ti-4Al-2.7V-12Mo-10Nb-1Zr-0.2Cr was carried out in the arc melting vacuum furnace. The microstructure and mechanical properties of a new metastable beta titanium alloy Ti-4Al-2.7V-12Mo-10Nb-1Zr-0.2Cr were compared at different aging temperature and time. The growth mechanism of α phase is analysed by comparing the morphology of the precipitated phase at different temperature. Test results indicate that titanium alloy Ti-4Al-2.7V-12Mo-10Nb-1Zr-0.2Cr has the best property through two-step aging treatment. The tensile strength of titanium alloy Ti-4Al-2.7V-12Mo-10Nb-1Zr-0.2Cr after final aging treatment achieves 1180MPa with 8% elongation trough tensile test. The strengthing mechanism was also discussed in this paper.

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Advanced Materials Research (Volumes 311-313)

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782-786

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.311-313.782

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Online since:

August 2011

Authors:

Xun Yao, Shuang Jin Liu, Chun Xiang Cui, Fen Fei Cai

Keywords:

A New Metastable Titanium Alloy, Aging Treatment, Alpha Phase Growth Mechanism, Mechanical Property

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