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Finite element simulation of the tensile behavior of Ti–6Al–7Nb titanium alloy at elevated temperatures

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Abstract

Titanium and its alloys were increasingly used in bio-medical applications because of their improved mechanical characteristics, corrosion resistance, and biocompatibility. The commercially pure Titanium alloy Ti–6Al–4V has been used in biomedical applications for the past few years. The presence of vanadium in the commercially pure Titanium alloy is the major drawback of bio-medical applications. The Titanium alloy Ti–6Al–7Nb with non-vanadium content is being used as an alternative material. However, Niobium has been substituting for vanadium as a beta-stabilized agent giving biocompatibility. In this work, the high-temperature tensile behaviour of Ti–6Al–7Nb alloy was studied at two different temperatures (300 °C & 400 °C) with a strain rate of 10−2 s−1 to determine the flow characteristics of the material. From this work, it was observed that an increase in temperature, increases the percentage of elongation by 3.51% and decreases the yield strength and the tensile strength respectively. A finite element simulation of the tensile behaviour of Titanium alloy was performed using ANSYS 2020 software. A multilinear isotropic hardening material model was chosen to simulate the uniaxial tensile test. The results of the simulation were validated with experimental results.

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Acknowledgements

The authors would like to thank the Tamilnadu State Council for Science &Technology (TNSCST) for providing financial assistance for doing this work. (Ref. No. TNSCST/DST-STP/PRG/18/2019-2020). The authors also would like to thank the Department of Science & Technology, Government of India for funding the Research Infrastructure under the scheme entitled “Funds for the Improvement of S&T infrastructure (DST-FIST)”, Ref. No. SR/FST/College-110/2017".

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  1. Faculty, Department of Mechanical Engineering, Easwari Engineering College, Chennai, India

    M. Raju, R. Ramadoss, M. Vetrivel Sezhian & B. Mithunkanna

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  1. M. Raju
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Raju, M., Ramadoss, R., Sezhian, M.V. et al. Finite element simulation of the tensile behavior of Ti–6Al–7Nb titanium alloy at elevated temperatures. Int J Interact Des Manuf 17, 1225–1235 (2023). https://doi.org/10.1007/s12008-022-01103-9

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