Micro-mechanisms involved in rafts of crept MC2 nickel-based single crystal superalloy

M. Benyoucef, M. Legros, A. Coujou, P. Caron, H. Caldéron, N. Clément

Research output: Contribution to journalConference articlepeer-review

4 Scopus citations

Abstract

The micro-mechanisms involved in the γ/γ′ rafted microstructure built up at 1050°C in <001> oriented MC2 superalloy single crystals were analyzed. The analysis was performed by means of scanning electron microscopy (SEM), post mortem and in situ transmission electron microscopy (TEM). It was found that the creation and propagation modes of moving dislocations evidenced the important role of the misfit dislocation network as well as strength of the γ/γ′ interfaces.

Original languageEnglish
Pages (from-to)779-784
Number of pages6
JournalMaterials Science Forum
Volume426-432
Issue number1
StatePublished - 2003
EventThermec 2003 Processing and Manufacturing of Advanced Materials - Madrid, Spain
Duration: 7 Jul 200311 Jul 2003

Keywords

  • High temperature creep
  • In situ deformation
  • Plasticity
  • Single crystal
  • Superalloy
  • Transmission electron microscopy

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