Journal of Materials Science

, Volume 41, Issue 19, pp 6328–6332 | Cite as

Tensile behavior and deformation mechanisms of bulk ultrafine-grained copper

  • S. J. Xie
  • P. K. Liaw
  • H. Choo


The tensile behaviors of the ultrafine-grained (UFG) pure copper prepared by cold rolling have been investigated. The UFG-Cu exhibited high strengths and low ductility. The ductile dimple-like fracture surfaces and persistent-slip-bands (PSBs)-like local shear bands in the tension-deformed UFG-Cu were observed, both of which typically spanned tens of grain sizes. This observation indicated that the fracture mechanisms operated at a larger scale than the grain size and eventually involved collective grain activities. Moreover, localized shear bands provided the experimental evidence to the localized plastic deformation, which was the one of the dominant reasons, causing the low ductility in the UFG-Cu.


Shear Band Dislocation Activity Dimple Size Local Shear Band Linear Intercept Method 



The present work was supported by the NSF International Materials Institutes (IMI) Program, under DMR-0231320, with Dr. Carmen Huber as the Program Director.


  1. 1.
    Wang YM, Wang K, Pan D, Lu K, Hemker KJ, Ma E (2003) Scripta Mater 48:1581CrossRefGoogle Scholar
  2. 2.
    Mukai T, Suresh S, Kita K, Sasaki H, Kobayashi N, Higashi K, Inoue A (2003) Acta Mater 51:4197CrossRefGoogle Scholar
  3. 3.
    Wei Q, Jiao T, Ramesh KT, Ma E (2004) Scripta Mater 50:359CrossRefGoogle Scholar
  4. 4.
    Wang YM, Chen MW, Zhou FH, Ma E (2003) Nature 419:912CrossRefGoogle Scholar
  5. 5.
    Fan GJ, Fu LF, Qiao DC, Choo H, Liaw PK, Browning ND (2006) Scripta Mater 54(12):2137CrossRefGoogle Scholar
  6. 6.
    Fan GJ, Wang YD, Fu LF, Choo H, Liaw PK, Ren Y, Browning ND (2006) Appl Phys Lett 88(17): Art. No. 171914Google Scholar
  7. 7.
    Fan GJ, Choo H, Liaw PK, Lavernia EJ (2006) Acta Mater 54(7):1759CrossRefGoogle Scholar
  8. 8.
    Fan GJ, Choo H, Liaw PK, Lavernia EJ (2005a) Mat Sci Eng A-Struct 409(1–2):243CrossRefGoogle Scholar
  9. 9.
    Fan GJ, Choo H, Liaw PK, Lavernia EJ (2005b) Metall Mater Trans A 36A(10):2641CrossRefGoogle Scholar
  10. 10.
    Fan GJ, Wang GY, Choo H, Liaw PK, Park YS, Han BQ, Lavernia EJ (2005) Scripta Mater 52(9):929CrossRefGoogle Scholar
  11. 11.
    Koch CC, Morris DG, Lu K, Inoue A (1999) MRS Bull 24:54CrossRefGoogle Scholar
  12. 12.
    Weertman JR (2002) Mater Sci Forum 386-3:519CrossRefGoogle Scholar
  13. 13.
    Schiotz J, Di Tolla FD, Jacobson KW (1998) Nature 391:561CrossRefGoogle Scholar
  14. 14.
    Van Swygenhoven H (2002) Science 296:66CrossRefGoogle Scholar
  15. 15.
    Wei Q, Jia D, Ramesh KT, Ma E (2002) Appl Phys Lett 81:1240CrossRefGoogle Scholar
  16. 16.
    Agnew SR, Weertman JR (1998) Mater Sci Eng A244:145CrossRefGoogle Scholar
  17. 17.
    Wu SD, Wang ZG, Jiang CB, Li GY, Alexandrov IV, Valiev RZ (2003) Scripta Mater 48:1605CrossRefGoogle Scholar
  18. 18.
    Hashimoto S, Kaneko Y, Kitagawa K, Vinogradov A Yu, Valiev RZ (1999) Mater Sci Forum 312–314:593CrossRefGoogle Scholar
  19. 19.
    Vinogradov AY, Patlan V, Hashimoto S, Kitagawa K (2002) Phil Mag A82:317CrossRefGoogle Scholar
  20. 20.
    Williamson GK, Hall WH (1953) Acta Metall 1:22CrossRefGoogle Scholar
  21. 21.
    Annual Books of ASTM Standards (2001) 3:251Google Scholar
  22. 22.
    Ungár T (2003) Adv Eng Mater 5:323CrossRefGoogle Scholar
  23. 23.
    Hasnaoui A, Swygenhoven HV, Derlet PM (2003) Science 300:1550CrossRefGoogle Scholar
  24. 24.
    Wang YM, Ma E, Chen MW (2002) Appl Phys Lett 80:2395CrossRefGoogle Scholar
  25. 25.
    Kumar KS, Suresh S, Chisholm MF, Horton JA, Wang P (2003) Acta Mater 51:387CrossRefGoogle Scholar
  26. 26.
    Jia D, Wang YM, Ramesh KT, Ma E, Zhu YT, Valiev RZ (2001) Appl Phys Lett 79:611CrossRefGoogle Scholar
  27. 27.
    Basinski ZS, Basinksi SJ (1985) Acta Metall 33:1307CrossRefGoogle Scholar
  28. 28.
    Hahn H, Padmanabhan KA (1997) Philos Mag B76:559CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC 2006

Authors and Affiliations

  • S. J. Xie
    • 1
  • P. K. Liaw
    • 1
  • H. Choo
    • 1
  1. 1.Department of Materials Science & EngineeringThe University of TennesseeKnoxvilleUSA

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