Formation mechanism of the high-speed deformation characteristic microstructure based on dislocation slipping and twinning in α-titanium

Abstract

As-annealed commercial pure titanium (grade 1) was selected as a model material whose crystalline structure was hexagonal close-packed. The evolution of the microstructure and micro-orientation induced by high-speed compression was characterized to elaborate the formation mechanism of the high-speed deformation characteristic microstructure in α-titanium. Twinning played a coordinating role for dislocation slipping that was the main plastic deformation mechanism. The high-speed deformation characteristic microstructure of as-annealed commercial pure titanium was an adiabatic shear band (ASB) with an average width of 50 μm at a strain rate of 5400 s−1, whose initial grains were 0.5–1.0 μm in size. The formation and extension of ASB were attributed to the interaction between the shear stress and the adiabatic temperature rise. A formation model of ASB in α-Ti was proposed in terms of the formation mechanism of the high-speed deformation characteristic microstructure.

This is a preview of subscription content, access via your institution.

FIG. 1
FIG. 2
FIG. 3
FIG. 4
FIG. 5
FIG. 6
FIG. 7
FIG. 8
FIG. 9
FIG. 10
FIG. 11
FIG. 12
FIG. 13

References

  1. 1.

    Y.B. Xu and Y.L. Bai: Shear localization, microstructure evolution and fracture under high-strain rate. Adv. Appl. Mech. 37, 496 (2007).

    Google Scholar 

  2. 2.

    Y.L. Bai, Q. Xue, Y.B. Xu, and L.T. Shen: Characteristics and microstructure in the evolution of shear localization in Ti–6A1–4V alloy. Mech. Mater. 17, 155 (1994).

    Article  Google Scholar 

  3. 3.

    S.W. Xu, S. Kamado, and T. Honma: Recrystallization mechanism and the relationship between grain size and Zener–Hollomon parameter of Mg–Al–Zn–Ca alloys during hot compression. Scr. Mater. 63, 293 (2010).

    CAS  Article  Google Scholar 

  4. 4.

    U. Andrade and M.A. Meyers: Dynamic recrystallization in high-strain, high strain rate plastic deformation of copper. Acta Mater. 42, 3183 (1988).

    Article  Google Scholar 

  5. 5.

    J.A. Hines: A model for microstructure evolution in adiabatic shear bands. Metall. Mater. Trans. A 29, 191 (1998).

    Article  Google Scholar 

  6. 6.

    V.F. Nesterenko and M.A. Meyers: Shear localization and recrystallization in high-strain, high-strain-rate deformation of tantalum. Mater. Sci. Eng., A 229, 23 (1997).

    Article  Google Scholar 

  7. 7.

    J.A. Hines and K.S. Vecchio: Recrystallization kinetics within adiabatic shear bands. Acta Mater. 45, 635 (1997).

    CAS  Article  Google Scholar 

  8. 8.

    H.J. Mcqueen: Initiating nucleation of dynamic recrystallization, primarily in polycrystals. Mater. Sci. Eng., A 101, 149 (1988).

    CAS  Google Scholar 

  9. 9.

    Y.B. Xu, J.H. Zhang, and Y.L. Bai: Shear localization in dynamic deformation: Microstructural evolution. Mater. Trans. A 39A, 811 (2008).

    CAS  Article  Google Scholar 

  10. 10.

    L.E. Murr, A.C. Ramire, S.M. Gaytan, M.I. Lope, E.Y. Martinez, D.H. Hernande, and E. Martine: Microstructure evolution associated with adiabatic shear bands and shear band failure in ballistic plug formation in Ti–6Al–4V targets. Mater. Sci. Eng., A 516, 205 (2009).

    Article  Google Scholar 

  11. 11.

    D. Banerjeea and J.C. Williams: Perspectives on titanium science and technology. Acta Mater. 61, 844 (2013).

    Article  Google Scholar 

  12. 12.

    P. Ge, Y.Q. Zhao, and L. Zhou: Material development as viewed from study of titanium alloys used in missile warhead. Mater. Rev. 17, 26 (2003).

    Google Scholar 

  13. 13.

    Y. Yang and B.F. Wang: Dynamic recrystallization in adiabatic shear band in α-titanium. Mater. Lett. 60, 2198 (2006).

    CAS  Article  Google Scholar 

  14. 14.

    Y.B. Xu, Y.L. Bai, and M. Meyers: Deformation, phase transformation and recrystallization in the shear bands induced by high-strain rate loading in titanium and its alloys. J. Mater. Sci. Technol. 22, 737 (2006).

    Article  Google Scholar 

  15. 15.

    J. Peirs, W. Tirry, B. Amin-Ahmadi, F. Coghec, P. Verleysen, L. Rabet, D. Schryvers, and J. Degrieck: Microstructure of adiabatic shear bands in Ti6Al4V. Mater. Charact. 75, 79 (2013).

    CAS  Article  Google Scholar 

  16. 16.

    B. Bhav Singh and G. Sukumar: Effect of heat treatment on ballistic impact behavior of Ti–6Al–4V against 7.62 mm deformable projectile. Mater. Des. 36, 640 (2016).

    Article  Google Scholar 

  17. 17.

    Q. Li, Y.B. Xu, and M.N. Bassim: Dynamic mechanical behavior of pure titanium. J. Mater. Process. Technol. 155–156, 1889 (2004).

    Article  Google Scholar 

  18. 18.

    Y. Yang, X.M. Zhang, Z.H. Li, and Q.Y. Li: Adiabatic shearing phenomenon of titanium under explosion clad shock loading. J. Cent. South Inst. Min. Metall. 25, 485 (1994).

    CAS  Google Scholar 

  19. 19.

    Z.Z. Peng, S. Jonsson, and H.J. Roven: The effects of deformation conditions on microstructure and texture of commercially pure Ti. Acta Mater. 57, 5822 (2009).

    Article  Google Scholar 

  20. 20.

    N.P. Gurao, R. Kapoor, and S. Suwas: Deformation behavior of commercially pure titanium at extreme strain rate. Acta Mater. 59, 3431 (2001).

    Article  Google Scholar 

  21. 21.

    J. Tu, X.Y. Zhang, C. Lou, and Q. Liu: HREM investigation of {10−12} twin boundary and interface defects in deformed polycrystalline cobalt. Phil. Mag. Lett. 93, 292 (2013).

    CAS  Article  Google Scholar 

  22. 22.

    X.Y. Zhang, J. Tu, and Q. Liu: High-resolution electron microscopy study of the {10−11} twin boundary and twinning dislocation analysis in deformed polycrystalline cobalt. Scr. Mater. 67, 991 (2012).

    CAS  Article  Google Scholar 

  23. 23.

    Y.Z. Chang: Anisotropy and Microstructural Observation of the Dynamic Mechanical Properties of Pure Titanium under High Strain Rate in TA2 (Central South University, Changsha, 2008).

    Google Scholar 

  24. 24.

    M.H. Yoo: Slip, twinning, and fracture in hexagonal close-packed metals. Metall. Mater. Trans. A 12A, 409 (1981).

    Article  Google Scholar 

  25. 25.

    L. Daridona, O. Oussouaddib, and S. Ahzi: Influence of the material constitutive models on the adiabatic shear band spacing: MTS, power law and Johnson–cook models. Int. J. Solids Struct. 41, 3109 (2004).

    Article  Google Scholar 

  26. 26.

    T.B. Wang, B.L. Li, Z.Q. Wang, Y.C. Li, and Z.R. Nie: Influence mechanism of the initial dislocation boundary on the adiabatic shear sensitivity of commercial pure titanium. Mater. Sci. Eng., A 676, 1 (2016).

    CAS  Article  Google Scholar 

  27. 27.

    Y.B. Xu, W.L. Zhong, and Y.J. Chen: Shear localization and recrystallization in dynamic deformation of 8090 Al–Li alloy. Mater. Sci. Eng., A 299, 287 (2001).

    Article  Google Scholar 

Download references

ACKNOWLEDGMENTS

This research was supported by the National Natural Science Foundation of China (Project No. 51371013) and Beijing Municipal Natural Science Foundation (Project No. 2162004).

Author information

Affiliations

Authors

Corresponding authors

Correspondence to Bolong Li or Zuoren Nie.

Rights and permissions

Reprints and Permissions

About this article

Verify currency and authenticity via CrossMark

Cite this article

Wang, T., Li, B., Wang, Z. et al. Formation mechanism of the high-speed deformation characteristic microstructure based on dislocation slipping and twinning in α-titanium. Journal of Materials Research 31, 3907–3918 (2016). https://doi.org/10.1557/jmr.2016.409

Download citation