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Creep-Fatigue Life and Cyclic Constitutive Relation of MAR-M247 Directionally Solidified Superalloy at High Temperature

  • M. Ohnami
  • M. Sakane
  • T. Hasebe
Conference paper
Part of the International Union of Theoretical and Applied Mechanics book series (IUTAM)

Summary

This paper describes the effect of solidification direction on creepfatigue life of Mar-M247 directionally solidified (DS) superalloy. The specimen of which axis agrees to the solidification direction exhibited the maximum life, while the specimen which has 45° against the solidification direction exhibits the minimum life. Transversely directed specimen had the intermediate life. The difference in creep-fatigue life due to the loading direction was resulted from the anisotropy of Young’s modulus. A life prediction method for DS superalloy, considering the anisotropy of the Young’s modulus, was proposed and successfully applied to the creep-fatigue data.

Keywords

Creep Strain Solidification Direction Creep Damage Directionally Solidify Total Strain Range 
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.

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References

  1. 1.
    Nye, J.F.: Physical properties of crystals, Oxford University Press, 1957, pp.143-145.Google Scholar
  2. 2.
    Hasebe, T.; Sakane, M.; Ohnami, M: High temperature low cycle fatigue and cyclic constitutive relation of Mar-M247 directionally solidified superalloy, Jour. Engng. Mater. Techno., Trans. ASME (to appear).Google Scholar
  3. 3.
    Hasebe, T; Sakane, M.; Ohnami, M.: Elastic Anisotropy of Directionally Solidified Superalloy. Jour. Engng. Mater. Techno. Trans. ASME (to appear).Google Scholar

Copyright information

© Springer-Verlag, Berlin Heidelberg 1991

Authors and Affiliations

  • M. Ohnami
    • 1
  • M. Sakane
    • 1
  • T. Hasebe
    • 1
  1. 1.Faculty of Science and EngineeringRitsumeikan UniversityKyotoJapan

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