Elastic modulus of TI-6AL-4V titanium alloy

E.A. Trofimov, R.Y. Lutfullin, R.M. Kashaev show affiliations and emails
Received 20 November 2014; Accepted 06 April 2015;
Citation: E.A. Trofimov, R.Y. Lutfullin, R.M. Kashaev. Elastic modulus of TI-6AL-4V titanium alloy. Lett. Mater., 2015, 5(1) 67-69
BibTex   https://doi.org/10.22226/2410-3535-2015-1-67-69

Abstract

The manuscript presents results of Young's modulus (E) measurements for two-phase titanium alloy Ti-6Al-4V. The estimation of elasticity modulus (E) was made using three independent methods: standard mechanical tests (tensile test) on an electronic dynamometer “Instron”, the method measurement of sound speed propagation and the method of nanoindentation using nanohardness – testing scanning machine “Nanoscan3D”. The elastic properties were studied for Ti-6Al-4V alloy in different structural states: nanostructured (NS), microcrystalline (MC) and coarse-grained (CG). The elastic modulus α - and β - phases were measured by means of nanoindatation methods. It is shown that a value of elasticity modulus E for the Ti – 6Al – 4V alloy in the CG state is less than in the NS state by more than 20% that is likely to be attributed to the change in amount ratio between α and β phases characterized by different elastic properties.

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