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Journal of Materials Science

, Volume 43, Issue 15, pp 5342–5349 | Cite as

Viscoplastic behaviour of metals deformed at high-temperature, application to tension–compression cycles

  • Vladimir GantchenkoEmail author
  • Patrice Jouinot
  • Alain Köster
Article

Abstract

A mechanical modelling is proposed in order to describe viscoplastic behaviour without hardening of a nickel-base super alloy loaded at high temperature (900 °C) with strain rates varying within a wide range (from 10−1 to 10−4 s−1). A mathematical law is associated to the viscoplastic model; the parameters of the law are identified from monotonic biaxial tests of membranes loaded by pressure of inert gas (disk pressure testing under helium). The viscoplastic law provides calculated stresses with accuracy better than 1% at the highest strain rates and 4% at the lowest strain rates; the identified yield stress is a logarithmical function of strain rate as for other metallic alloys studied in the bibliography. The parameters identified from biaxial tensile tests of disks have been successfully used to calculate the stresses during stabilized tension–compression loops of cylindrical specimens. The proposed experimental method and behaviour model are interesting because the disk biaxial testing is much more easily performed at high temperature than the tension–compression testing of cylindrical specimens.

Keywords

Plastic Strain High Strain Rate Lower Strain Rate Thin Disk Disk Testing 

References

  1. 1.
    Genevois-Stasi J (1998) Etudes des proprietes mecaniques et metallurgiques de l’Inconel 625 au cours du vieillissement – Utilisation de l’essai de disques sous pression, PhD, Paris 6Google Scholar
  2. 2.
    Jouinot P, Gantchenko V (2006) Lois de comportement mecanique et endommagement de membranes sous pression de gaz, Proceedings of ITCT, Paris, France, November 2006Google Scholar
  3. 3.
    Ecole Nationale superieure des Mines de Saint Etienne. https://doi.org/www.emse.fr/fr/transfert/sms/depscientifiques/cnrsessaisprod.html
  4. 4.
    Jouinot P, Gantchenko V, Inglebert G, Ricciuis J (2004) Material damage induced by environment and temperature and identification process. Proceedings of ECCOMAS 2004, Jyväskylä, Finland, July 2004Google Scholar
  5. 5.
    Publication Number SMC-027. https://doi.org/www.specialmetals.com
  6. 6.
    Jouinot P, Gantchenko V (2005) Reduction of material life by hydrogen environments and/or thermal ageing. Proceedings of EUCASS, Moscow, Russia, July 2005Google Scholar
  7. 7.
    Hill R (1950) Philos Mag Ser. 7, 41(322):1133Google Scholar
  8. 8.
    Duncan JL (1965) Bull Mech Eng Educ 4:29Google Scholar
  9. 9.
    Aubin V, Quauaegebeur P, Degallaix S (2002) Yield surface behaviour under biaxial fatigue. Proceedings of 8th international fatigue congress, Stockhom, Sweden, June 2002Google Scholar
  10. 10.
    Mesrar R (1991) Comportement plastique des toles sous sollicitation biaxiale et analyse numerique de la mise en forme par gonflement hydraulique. PhD, MetzGoogle Scholar
  11. 11.
    Boualila A, Ayadi M, Zghal A, JendoubiI K (2002) Validation experimentale du modele de calcul en calotte spherique de plaques circulaires minces sous l’effet d’un gonflement hydraulique. Mecanique et Industries, March 2002Google Scholar
  12. 12.
    Manjoine MJ (1944) J Appl Mech A 211:11Google Scholar
  13. 13.
    Nadaï A (1950) Theory of flow and fracture solid. McGraw Hill, New York, p 915Google Scholar
  14. 14.
    Dowling AR, Harding J, Camprell JD (1970) J Inst Met 98:215Google Scholar
  15. 15.
    Maddin R, Pond R (1951) Met Prog 60:76Google Scholar
  16. 16.
    Poirier JP (1979) Montee des dislocations. Dislocations et deformation plastique, Les Editions de Physique, p 223Google Scholar
  17. 17.
    Lemaitre J, Chaboche JL (1988) Mecanique des materiaux solides, Ed Dunod, p 319Google Scholar
  18. 18.
    Bouajila W (2007) Modelling of launcher’s combustion chambers. Proceedings of 58th IAC Congress, Hyderabad, India, September 2007Google Scholar
  19. 19.
    Lemaitre J, Chaboche JL (1988) Mecanique des materiaux solides, Ed Dunod, p 322Google Scholar
  20. 20.
    Francois D, Pineau A, Zaoui A (1993) Comportement mecanique des materiaux, Ed Hermes, p 47Google Scholar
  21. 21.
    Campbell JD, Fergusson WG (1970) Phil Mag 21:63CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  • Vladimir Gantchenko
    • 1
    Email author
  • Patrice Jouinot
    • 1
  • Alain Köster
    • 2
  1. 1.ISMEPSaint OuenFrance
  2. 2.ENSMPEvryFrance

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