Texture Analysis of Commercial Pure (Grade 3) Ti after Two-Step Severe Plastic Deformation

Abstract:

Ultrafine-grained (UFG) commercial pure (CP, grade 3) Ti was produced by two-step severe plastic deformation (eight-pass equal channel angular extrusion (ECAE) at 400 °C and cold rolling (CR) at room temperature (RT)). The crystallographic texture in UFG CP-Ti and coarse-grained (CG) CP-Ti (annealed) after CR at RT are studied by orientation distribution function (ODF) analysis, based on X-ray diffraction. The relationship between the texture components and mechanical properties of UFG CP-Ti after two-step severe plastic deformation (SPD) has been discussed. ODF analysis shows that the main texture components in UFG Ti after CR at RT are (011—5)[11— 01], (011—5)[22—01], (0001)[1—3—43] and (011—3)[21—1—1], while the texture components of (011—3)[1—101—] and (011— 3)[2— 201] appear in CG CP-Ti after CR at RT. The values of Schmid factor for prismatic- slip systems are larger than that for basal slip systems and other slip systems, which is more in favor of the activation of prismatic-. In addition, higher strength of texture in favor of the activation of prismatic- in UFG CP-Ti improves its plasticity.

• Periodical: Materials Science Forum (Volume 682)
• Pages: 65-70
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.682.65
• Online since: March 2011
• Authors: Hong Jiang, Chao Ying Xie, Jie Song, Xiao Gang Sun, Xiao Ning Zhang
• Keywords: Cold Rolling, Crystallographic Texture, ODF Analysis, Ultrafine-Grained CP-Ti

References

[1] V.M. Segal: Materials Science and Engineering: A Vol. 197 (1995), p.157.

[2] S. Li: Materials Science Forum Vol. 561-565 (2007), p. (1979).

[3] V.V. Stolyarov, Y.T. Zhu, I.V. Alexandrov, etc.: Materials Science and Engineering: A Vol. 343 (2003), p.43.

[4] Z. Fan, H. Jiang, X. Sun, etc.: Materials Science and Engineering: A Vol. 527 (2009), p.45.

[5] I.J. Beyerlein andL.S. Tóth: Progress in Materials Science Vol. 54 (2009), p.427.

[6] B. Beausir, L.S. Tóth and K.W. Neale: Acta Materialia Vol 55 (2007), p.2695.

[7] H.J. Bunge: Texture Analysis in Materials Science (Butterworth, Britain 1982).

[8] Y.N. Wang and J.C. Huang: Materials Chemistry and Physics Vol. 81 (2003), p.11.

[9] Z. Zeng, Y. Zhang and S. Jonsson: Materials Science and Engineering: A Vol. 513-514 (2009), p.83.

[10] P. PG: Metall Rev Vol. 12 (1967), p.169.

[11] I.J. Beyerlein, R.D. Field, K.T. Hartwig, etc.: Journal of Materials Science Vol. 43 (2008), p.7465.

[12] J.J. Fundenberger, M.J. Philippe, F. Wagner, etc.: Acta Materialia Vol. 45 (1997), p.4041.