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Low Temperature Strain Rate Sensitivity of Titanium Alloys

Vigié, Héloïse and Paula, Thalita de and Surand, Martin and Viguier, Bernard Low Temperature Strain Rate Sensitivity of Titanium Alloys. (2016) Solid State Phenomena, 258. 570-573. ISSN 1662-9779

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Official URL: https://doi.org/10.4028/www.scientific.net/SSP.258.570

Abstract

Titanium alloys are widely used in many industrial applications such as in aeronautics due to their combination of good mechanical properties, excellent corrosion resistance and low density. The mechanical behaviour of titanium alloys is known to exhibit a peculiar dependence on both deformation temperature and strain rate. Titanium alloys show significant room temperature creep and they are very sensitive to dwell fatigue and sustained load cracking. This behaviour is related to the viscosity of plastic deformation in titanium alloys, which can be represented by a strain rate sensitivity (SRS) parameter. The present study aims to compare the tensile behavior of two different titanium alloys, Ti-6Al-4V and β21S, which exhibit dissimilar microstructures. Results of tensile tests, performed under constant strain rate and including strain rate changes, are reported in terms of flow stress, ductility and SRS over a wide range of temperatures.

Item Type:Article
HAL Id:hal-02392091
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
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Deposited By: Yves MOMBOISSE
Deposited On:03 Dec 2019 17:38

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