Journal of Materials Science

, Volume 43, Issue 11, pp 3792–3799 | Cite as

Effects of grain boundary- and triple junction-character on intergranular fatigue crack nucleation in polycrystalline aluminum

  • Shigeaki Kobayashi
  • Toshiyuki Inomata
  • Hiroyuki Kobayashi
  • Sadahiro Tsurekawa
  • Tadao Watanabe
Intergranular and Interphase Boundaries in Materials

Abstract

The effects of grain boundary- and triple junction-character on intergranular fatigue crack nucleation were studied in coarse-grained polycrystalline aluminum specimens whose grain boundary microstructures were analyzed by SEM-EBSD/OIM technique. Fatigue crack nucleation occurred mainly along grain boundaries and depended strongly on both the grain boundary character and grain boundary configuration with respect to the persistent slip bands. However, it was little dependent on the geometrical arrangements between the grain boundary plane and the stress axis. Particularly, random boundaries become preferential sites for fatigue crack nucleation. The fatigue cracks were also observed at CSL boundaries when the grain-boundary trace on the specimen surface was parallel to persistent slip bands. On the other hand, no intergranular fatigue cracks were observed at low-angle boundaries. The fatigue cracks were observed at triple junctions as well as grain boundaries. Their nucleation considerably occurred at triple junctions where random boundaries were interconnected. The grain boundary engineering for improvement in fatigue property was discussed on the basis of the results of the structure-dependent intergranular and triple junction fatigue crack nucleation.

Keywords

Fatigue Crack Triple Junction Boundary Character Polycrystalline Aluminum Random Boundary 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

The authors would like to express their gratitude to Prof. S. Saito of Ashikaga Institute of Technology, for his help in cold rolling of the pure aluminum sheets. One (S.K) of the authors is grateful to Ashikaga Institute of Technology for a special support for participating in iib ‘07, where this paper was presented.

References

  1. 1.
    Mughrabi H (1983) Defects. In: Sih GC, Provan JW (eds) Proceedings of the second International Symposium on defects, fracture and fatigue. Mont Gabriel, May 30–June 5 1982. Martinus Nijhoff Publishers, p 139Google Scholar
  2. 2.
    Mughrabi H, Wang R, Differt K, Essmann U (1983) In: Lankford J, Davidson DL, Morris WL, Wei RP (eds) Fatigue mechanisms: advances in quantitative measurement of physical damage. American Society for Testing and Materials, p 5Google Scholar
  3. 3.
    Neumann P, Tönnessen A (1987) In: Proceedings of the 3rd International Conference on Fatigue and Fatigue Thresholds (Fatigue ‘87), Virginia, June 1987, p 3Google Scholar
  4. 4.
    Kim WH, Laird C (1978) Acta metal 26:777CrossRefGoogle Scholar
  5. 5.
    Kim WH, Laird C (1978) Acta metal 26:789CrossRefGoogle Scholar
  6. 6.
    Mima G, Inoko F, Atagi K (1980) Trans Japan Inst Metals 21:87Google Scholar
  7. 7.
    Inoko F, Atagi K, Mima G (1982) Trans Japan Inst Metals 23:161Google Scholar
  8. 8.
    Lim LC (1987) Acta Metall 35:1653CrossRefGoogle Scholar
  9. 9.
    Heinz A, Neumann P (1990) Acta Metall Mater 38:1933CrossRefGoogle Scholar
  10. 10.
    Zhang ZF, Wang ZG (2000) Mater Sci Eng A284:285Google Scholar
  11. 11.
    Wang ZG, Zhang ZF, Li XW, Jia WP, Li SX (2001) Mater Sci Eng A319–321:63Google Scholar
  12. 12.
    Zhang ZF, Wang ZG (2003) Acta Mater 51:347CrossRefGoogle Scholar
  13. 13.
    Mori H, Ito R, Miyazaki T, Kozakai T (1981) Mater Sci Eng 50:243CrossRefGoogle Scholar
  14. 14.
    Kaneko Y, Kitagawa K, Hashimoto S (1999) Interface Sci 7:147CrossRefGoogle Scholar
  15. 15.
    Takahashi T, Hashimoto S, Miura S (1993) In: Hosoi Y, Yoshinaga H, Oikawa H, Maruyama K (eds) Proceedings of the 7th JIM International Symposium on Aspects of High Temperature Deformation and Fracture in Crystalline Materials, Nagoya, July 1993 (The Japan Institute of Metals, 1994), p 131Google Scholar
  16. 16.
    Onaka S, Tajima F, Hashimoto S, Miura S (1995) Acta Metall Mater 43:307Google Scholar
  17. 17.
    Randle V (1995) Acta metall 43:1741CrossRefGoogle Scholar
  18. 18.
    Kobayashi S, Yoshimura T, Tsurekawa S, Watanabe T, Cui J (2003) Mater Trans 44:1469CrossRefGoogle Scholar
  19. 19.
    Kobayashi S, Tsurekawa S, Watanabe T (2005) Acta Mater 53:105Google Scholar
  20. 20.
    Kobayashi S, Tsurekawa S, Watanabe T (2006) Phil Mag 86:5419CrossRefGoogle Scholar
  21. 21.
    Watanabe T (1984) Res Mechanica 11:47Google Scholar
  22. 22.
    Watanabe T (1993) Mater Sci Eng A166:11Google Scholar
  23. 23.
    Aust KT, Erb U, Palumbo G (1994) Mater Sci Eng A176:329Google Scholar
  24. 24.
    Watanabe T, Tsurekawa S (1999) Acta Mater 47:4171CrossRefGoogle Scholar
  25. 25.
    Gao Y, Kumar M, Nalla RK, Ritchie RO (2005) Metall Mater Trans 36A:3325CrossRefGoogle Scholar
  26. 26.
    Gao Y, Stölken JS, Kumar M, Ritchie RO (2007) Acta Mater 55:3155CrossRefGoogle Scholar
  27. 27.
    Brandon DG (1966) Acta Metall 14:1479CrossRefGoogle Scholar
  28. 28.
    Fortier P, Miller WA, Aust KT (1997) Acta Mater 45:3459CrossRefGoogle Scholar
  29. 29.
    Kokawa H, Watanabe T, Karashima S (1983) J Mater Sci 18:1183CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  • Shigeaki Kobayashi
    • 1
  • Toshiyuki Inomata
    • 1
  • Hiroyuki Kobayashi
    • 1
  • Sadahiro Tsurekawa
    • 2
    • 3
  • Tadao Watanabe
    • 2
    • 4
  1. 1.Department of Mechanical Engineering, Faculty of EngineeringAshikaga Institute of TechnologyAshikagaJapan
  2. 2.Department of Nanomechanics, Graduate School of EngineeringTohoku UniversitySendaiJapan
  3. 3.Faculty of EngineeringKumamoto UniversityKumamotoJapan
  4. 4.Visiting Professor, Key Laboratory of Electromagnetic Processing of Materials (EPM)Northeastern UniversityShenyangP.R. China

Personalised recommendations