Microstructure and Texture Evolution during Continuous Dynamic Recrystallization at Warm Deformation of Titanium


Article Preview

The microstructure and texture evolutions in pure titanium during severe plastic deformation at T=400°C were investigated. Compressive deformation of prismatic samples was sequentially applied in three orthogonal directions up to 12 steps and a strain at each step of 40%. A radical microstructure refinement (from 20 to 0.2 µm) during strain has been found. The features of the deformation structure are a high level of internal stresses, high density of dislocations, a large number of deformation induced boundaries and the presence of twins. It is shown that during strain there is a significant change in disorientation angles and axes of individual high angle grain boundaries. At the same time the total set of high angle boundaries - Misorientation Distribution Function (MDF) and texture - does not change significantly with strain. The reasons for the change in disorientation angles and axes at new deformation-induced boundaries during plastic flow are discussed.



Materials Science Forum (Volumes 467-470)

Edited by:

B. Bacroix, J.H. Driver, R. Le Gall, Cl. Maurice, R. Penelle, H. Réglé and L. Tabourot




S.Y. Mironov et al., "Microstructure and Texture Evolution during Continuous Dynamic Recrystallization at Warm Deformation of Titanium", Materials Science Forum, Vols. 467-470, pp. 1211-1216, 2004

Online since:

October 2004




[1] N.A. Smirnov, V.I. Levit, V.I. Pilugin, R.I. Kuznetsov, L.S. Davidova, V.A. Sazonova: Phys. Met. and Mat. Vol. 61 (1986), p.1170 (in Russian).

[2] R.Z. Valiev, I.V. Alexandrov: Nanostructured materials received by severe plastic deformation (Logos, Russia 2000).

[3] A. Belyakov, R. Kaibyshev and T. Sakai: Met. and Mat. Trans. A Vol. 29A (1998), p.161.

[4] C. Chovet, S. Gourdet, F. Montheillet: Mat. Trans. Vol. 41 (2000), p.109.

[5] F. Haessner: Recrystallization of metallic materials (Dr. Riederes Verlog GmbH, Germany 1978).

[6] V.V. Rybin: Large plastic deformation and fracture of metals (Metallurgy, Russia 1986).

[7] P.J. Hurley, F.J. Humphreys: Acta Mat. Vol. 51 (2003), p.1087.

[8] D.A. Hughes and N. Hansen: Acta Mat. Vol. 45 (1997), p.3871.

[9] M.F. Ashby: Phil. Mag. Vol. 21 (1970), p.399.