Advertisement

Journal of Materials Science

, Volume 43, Issue 23–24, pp 7354–7359 | Cite as

Strength and fatigue properties enhancement in ultrafine-grained Ti produced by severe plastic deformation

  • I. P. SemenovaEmail author
  • R. Z. Valiev
  • E. B. Yakushina
  • G. H. Salimgareeva
  • T. C. Lowe
Ultrafine-Grained Materials

Abstract

Severe plastic deformation (SPD) of titanium creates an ultrafine-grained (UFG) microstructure which results in significantly enhanced mechanical properties, including increasing the high cycle fatigue strength. This work addresses the challenge of maintaining the high level of properties as SPD processing techniques are evolved from methods suitable for producing laboratory scale samples to methods suitable for commercial scale production of titanium semi-products. Various ways to optimize the strength and fatigue endurance limit in long-length Grade 4 titanium rod processed by equal channel angular pressing (ECAP) with subsequent thermal mechanical treatments are considered in this paper. Low-temperature annealing of rods is found to increase the fatigue limit, simultaneously enhancing UFG titanium strength and ductility. The UFG structure in titanium provides an optimum combination of properties when its microstructure includes mostly equiaxed grains with high-angle boundaries, the volume fraction of which is no less than 50%.

Keywords

Severe Plastic Deformation Equal Channel Angular Pressing Fatigue Limit High Pressure Torsion Thermo Mechanical Treatment 

Notes

Acknowledgements

This work was conducted under the support of the U.S. DOE-IPP Program within the frames of the ISTC project No 3208 p and the Russian Federal Agency for Science and Innovation.

Open Access

This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.

References

  1. 1.
    Valiev RZ, Langdon TG (2006) Prog Mater Sci 51:881. doi: https://doi.org/10.1016/j.pmatsci.2006.02.003 CrossRefGoogle Scholar
  2. 2.
    Zhu YT, Langdon TG, Mishra RS, Semiatin SL, Saran MJ, Lowe TC (eds) (2002) Ultrafine grained materials II. The Minerals Metals and Materials Society, Warrendale, PAGoogle Scholar
  3. 3.
    Sergueeva AV, Stolyarov VV, Valiev RZ, Mukherjee AK (2002) Mater Sci Eng A 323:318. doi: https://doi.org/10.1016/S0921-5093(01)01384-3 CrossRefGoogle Scholar
  4. 4.
    Vinogradov AY, Stolyarov VV, Hashimoto S, Valiev RZ (2001) Mater Sci Eng A 318:163. doi: https://doi.org/10.1016/S0921-5093(01)01262-X CrossRefGoogle Scholar
  5. 5.
    Sergueeva AV, Stolyarov VV, Valiev RZ, Mukherjee AK (2001) Scr Mater 45:747. doi: https://doi.org/10.1016/S1359-6462(01)01089-2 CrossRefGoogle Scholar
  6. 6.
    Stolyarov VV, Zhu YT, Alexandrov IV, Lowe TC, Valiev RZ (2001) Mater Sci Eng A 299:59. doi: https://doi.org/10.1016/S0921-5093(00)01411-8 CrossRefGoogle Scholar
  7. 7.
    Salishchev GA, Zherebtsov SV, Galeyev RM (2003) In: Ultrafine grained materials II, TMS (The Minerals, Metals and Materials Society), Warrendale, PA, pp 123–131Google Scholar
  8. 8.
    Salimgareeva GH, Semenova IP, Latysh VV, Kandarov IV, Valiev RZ (2005) Solid State Phenom 114:183CrossRefGoogle Scholar
  9. 9.
    Latysh VV, Semenova IP, Sadikova GH, Zhu YT, Lowe TC, Asaro RJ et al (2005) In: Conf Proc Ultrafine Grained Materials IV, TMS (The Minerals, Metals and Materials Society), Warrendale, PA, p 111Google Scholar
  10. 10.
    Valiev RZ, Sergueeva AV, Mukherjee AK (2003) Scr Mater 49:669. doi: https://doi.org/10.1016/S1359-6462(03)00395-6 CrossRefGoogle Scholar
  11. 11.
    Valiev RZ (2004) Nat Mater 3:511. doi: https://doi.org/10.1038/nmat1180 CrossRefGoogle Scholar

Copyright information

© The Author(s) 2008

Open AccessThis is an open access article distributed under the terms of the Creative Commons Attribution Noncommercial License (https://doi.org/creativecommons.org/licenses/by-nc/2.0), which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.

Authors and Affiliations

  • I. P. Semenova
    • 1
    Email author
  • R. Z. Valiev
    • 1
  • E. B. Yakushina
    • 1
  • G. H. Salimgareeva
    • 1
  • T. C. Lowe
    • 2
  1. 1.Institute of Physics of Advanced MaterialsUfa State Aviation Technical UniversityUfaRussia
  2. 2.Los Alamos National LaboratoryLos AlamosUSA

Personalised recommendations