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Modelling of flow stresses during hot deformation of Ti–6Al–4Mo–1V–0.1Si alloy

Mahadule, D and Kumar, D and Dandekar, TR and Khatirkar, RK and Suwas, S (2023) Modelling of flow stresses during hot deformation of Ti–6Al–4Mo–1V–0.1Si alloy. In: Journal of Materials Research .

Full text not available from this repository.
Official URL: https://doi.org/10.1557/s43578-023-01097-4


The present study describes the hot deformation behaviour of a novel Ti–6Al–4Mo–1V–0.1Si alloy. The flow characteristics of the alloy were investigated in the strain rate range of 0.01 s−1 to 10 s−1 and at temperatures ranging from 800 to 1050 °C. The increase in deformation temperature and decrease in strain rate results in gradual decrease of flow stress. Flow softening was observed for deformation at lower temperatures (800–900 °C) due to lamellae kinking, whereas flat flow curve characteristics were observed for deformation at higher temperatures (950–1050 °C) due to a balance of dynamic recovery and recrystallization. The flow stress characteristics during hot deformation were predicted using constitutive modelling based on the Arrhenius hyperbolic sine equation. The strain rate sensitivity map was created for 0.69 strain. The optimum hot deformation zone was observed at 0.01 s−1 in the temperature range (925–1050 °C), and at strain rates of 1 s−1 and 5 s−1 from 900 to 975 °C. Graphical abstract: [Figure not available: see fulltext.].

Item Type: Journal Article
Publication: Journal of Materials Research
Publisher: Springer Nature
Additional Information: The copyright for this article belongs to the Springer Nature.
Keywords: Arrhenius hyperbolic sine method; Flow-stress modelling; Strain rate sensitivity map; Titanium alloy.
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 23 Oct 2023 08:49
Last Modified: 23 Oct 2023 08:49
URI: https://eprints.iisc.ac.in/id/eprint/82628

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