Rev.Adv.Mater.Sci.(RAMS)
No 3, Vol. 10, 2005, pages 229-234

LOW TEMPERATURE FEATURES OF MECHANICAL PROPERTIES AND FAILURE OF DIFFERENT
COMMERCIAL PURITY NANOSTRUCTURED TITANIUM PROCESSED BY ECA PRESSING

E.D. Tabachnikova, V.Z. Bengus, A.V. Podolskiy, S.N. Smirnov, V.D. Natsik,
K. Csach, J. Miskuf, D.V. Gunderov and R. Valiev

Abstract

Low temperature mechanical characteristics of different purity nanostructured titanium produced by the equal channel angular pressing (ECAP) method have been studied under active deformation (quasistatic uniaxial tension and compression) and under failure.
Values of the yield stress and the uniform plasticity at 300, 77, and 4.2K for nanostructured (NS) and polycrystalline coarse-grained (CG) titanium of different commercial purity have been compared. The failure type of Grade 2 Ti under tension and compression has been established.

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