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A Numerical Approach to Investigate the Effect of Temperature on Constraint Factor of Ti Alloy Under Static Indentation Conditions

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Abstract

Temperature dependence of constraint factor i.e. the ratio of static indentation hardness to uniaxial flow stress was studied for Ti–6Al–4V from RT to 673 K using FEA. Surface-to-surface contact with finite sliding, which was used to model the interaction between spherical indenter/test specimen and the constitutive equations were then applied in axi-symmetric FE model. The results obtained from numerical analysis were in good agreement with the modified Expanding Cavity Model. Meyer’s hardness increased with average strain and strain hardening index increased from 0.19 to 0.21 with rise in temperature.

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Acknowledgments

The authors are grateful to Vice Chancellor, DIAT (DU), Pune for according permission to publish this paper in the journal. Acknowledgements are due to fellow M. Tech students for providing necessary inputs during the simulations.

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Authors and Affiliations

  1. Department of Mechanical Engineering, Defence Institute of Advanced Technology, Pune, 411025, India

    Ambuj Saxena, Akshay Rai & A. Kumaraswamy

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  1. Ambuj Saxena
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  2. Akshay Rai
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  3. A. Kumaraswamy
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Correspondence to Ambuj Saxena.

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Saxena, A., Rai, A. & Kumaraswamy, A. A Numerical Approach to Investigate the Effect of Temperature on Constraint Factor of Ti Alloy Under Static Indentation Conditions. Trans Indian Inst Met 70, 1549–1553 (2017). https://doi.org/10.1007/s12666-016-0952-2

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