Journal of Materials Science

, Volume 27, Issue 6, pp 1505–1513 | Cite as

Stress relaxation in bending of type AISI304 stainless steel at 773 and 823 K

  • F. Povolo
  • R. J. Tinivella
  • J. F. Reggiardo
  • G. B. Botteri


Stress relaxation measurements at 773 and 823 K in bending and for different initial stresses in type AISI 304 stainless steel are reported. Several thermal treatments were given to the specimens prior to the relaxation testing. The data are fitted to a general equation that describes thermally activated dislocation motion and it is shown that, in some cases, the internal stress changes with the applied stress. No substantial differences were found in the stress relaxation behaviour on changing the thermal treatment. This is attributed to the influence of dynamic strain ageing; an equation which can be used to describe experimental log stress against log strain rate curves is presented.


Stress Relaxation Stress Change Relaxation Behaviour Strain Ageing Dynamic Strain 
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  1. 1.
    J. N. Conway, R. H. Stentz and J. T. Berling, “Fatigue, Tensile and Relaxation Behaviour of Stainless Steels”, US Atomic Energy Commission Report TID-26135 (1975).Google Scholar
  2. 2.
    R. W. Rhode and J. C. Swearengen, in Transactions of the Fourth International Conference on Structural Mechanics in Reactor Technology, Vol. L edited by A. Jaeger and B. A. Boley (North-Holland, Amsterdam, 1977) p. 85.Google Scholar
  3. 3.
    J. B. Conway, “An Analysis of the Relaxation Behaviour of AISI 304 and 316 Stainless Steel at Elevated Temperature”, US Atomic Energy Commission Report GEMP-730 (General Electric Company, 1969).Google Scholar
  4. 4.
    E. W. Hart, Trans. J. Engng Mater. Tech.98 (1976) 193.CrossRefGoogle Scholar
  5. 5.
    E. W. Hart, in Transactions of the Fourth International Conference on Structural Mechanics in Reactor Technology, Vol L, edited by A. Jaeger and B. A. Boley (North-Holland, Amsterdam, 1977) p. 1/1.Google Scholar
  6. 6.
    H. Yamada and Che-Yu Li, Metall. Trans.4 (1973) 2133.CrossRefGoogle Scholar
  7. 7.
    J. F. Thomas Jr. and F. L. Yaggee, ibid.6A (1975) 1835.CrossRefGoogle Scholar
  8. 8.
    G. L. Wire, F. V. Ellis and Che-Yu Li, Acta Metall24 (1976) 677.CrossRefGoogle Scholar
  9. 9.
    Che-Yu Li, F. V. Ellis and F. H. Huang, in “Alloys and Microstructural Design”, edited by J. K. Tien and G. S. Ansell (Academic, New York, 1976) p. 403.CrossRefGoogle Scholar
  10. 10.
    N. Nir, F. H. Huang, E. W. Hart and Che-Yu Li, Metall. Trans.8A (1977) 583.CrossRefGoogle Scholar
  11. 11.
    F. H. Huang, F, V. Ellis and Che-Yu Li, ibid.8A (1977) 699.CrossRefGoogle Scholar
  12. 12.
    H. Yamada, Scripta Metall.11 (1977) 321.CrossRefGoogle Scholar
  13. 13.
    F. H. Huang, H. Yamada and Che-Yu Li, in Proceedings of the Fifth International Conference on Materials Technology, Sao Paulo (1978) p. 83.Google Scholar
  14. 14.
    M. J. Anciaux, Metall. Trans.12A (1981) 1981.CrossRefGoogle Scholar
  15. 15.
    F. Povolo and R. J. Tinivella, J. Mater. Sci.19 (1984) 2373.CrossRefGoogle Scholar
  16. 16.
    Idem, ibid.19 (1984) 1851.CrossRefGoogle Scholar
  17. 17.
    D. E. Fraser, P. A. Ross-Ross and A. R. Causey, J. Nucl. Mater.46 (1973) 281.CrossRefGoogle Scholar
  18. 18.
    F. Povolo and E. H. Toscano, ibid.74 (1978) 76.CrossRefGoogle Scholar
  19. 19.
    Idem, ibid.78 (1978) 217.CrossRefGoogle Scholar
  20. 20.
    L. D. Blackburn, in “The Generation of Isochronous Stress Strain Curves”, Proceedings of the ASME Winter Annual Meeting, New York, November, 1972 (ASME, New York).Google Scholar
  21. 21.
    F. Povolo and J. F. Reggiardo, J. Mater. Sci.23 (1988) 241.CrossRefGoogle Scholar
  22. 22.
    W. G. Johnston and J. J. Gilman, J. Appl. Phys.30 (1959) 139.CrossRefGoogle Scholar
  23. 23.
    F. Povolo and G. H. Rubiolo, Phil Mag.A56 (1987) 209.CrossRefGoogle Scholar

Copyright information

© Chapman & Hall 1992

Authors and Affiliations

  • F. Povolo
    • 1
    • 3
  • R. J. Tinivella
    • 2
  • J. F. Reggiardo
    • 2
  • G. B. Botteri
    • 2
  1. 1.International Centre for Theoretical PhysicsTriesteItaly
  2. 2.Facultad Regional San NicolasUniversidad Tecnologica NacionalSan NicolasArgentina
  3. 3.Departamento de Fisica, Facultad de Ciencias Exactas y NaturalesUniversidad de Buenos AiresBuenos AiresArgentina

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