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Microstructural features of flow instability in α-titanium cylinders under high strain rate compression at 25°C to 400°C

Kailas, SV and Prasad, YVRK and Biswas, SK (1993) Microstructural features of flow instability in α-titanium cylinders under high strain rate compression at 25°C to 400°C. In: Metallurgical Transactions. Physical Metallurgy and Material, 24 (11). pp. 2513-2520.

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Official URL: http://cat.inist.fr/?aModele=afficheN&cpsidt=38293...

Abstract

Cylindrical specimens of commercial pure titanium have been compressed at strain rates in the range of 0.1 to 100 s-1 and temperatures in the range of 25-degrees-C to 400-degrees-C. At strain rates of 10 and 100 s-1, the specimens exhibited adiabatic shear bands. At lower strain rates, the material deformed in an inhomogeneous fashion. These material-related instabilities are examined in the light of the ''phenomenological model'' and the ''dynamic materials mode.'' It is found that the regime of adiabatic shear band formation is predicted by the phenomenological model, while the dynamic materials model is able to predict the inhomogeneous deformation zone. The criterion based on power partitioning is competent to predict the variations within the inhomogeneous deformation zone.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Minerals Metals Materials Soc.
Department/Centre: Division of Mechanical Sciences > Mechanical Engineering
Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 17 Feb 2011 07:41
Last Modified: 17 Feb 2011 07:41
URI: http://eprints.iisc.ernet.in/id/eprint/35611

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