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High Temperature Creep Behavior of Single Crystal Gammpraime and Gamm Laloys

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Abstract

The creep behavior of single crystals of γ′ and γ alloys were investigated and compared to the response of two phase superalloys tested previously. High temperature deformation in the γ alloys was characteristic of a climb controlled mechanism, whereas the γ′ based materials exhibited glide controlled creep behavior. The superalloys were much more creep resistant than their constituent phases, which indicates the importance of the γ-γ′ interface as a barrier for dislocation motion during creep.

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Authors and Affiliations

  1. NASA Lewis Research Center, 44135, Cleveland, OH, USA

    M. V. Nathal, J. O. Diaz & R. V. Miner

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  1. M. V. Nathal
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  2. J. O. Diaz
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  3. R. V. Miner
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Nathal, M.V., Diaz, J.O. & Miner, R.V. High Temperature Creep Behavior of Single Crystal Gammpraime and Gamm Laloys. MRS Online Proceedings Library 133, 269 (1988). https://doi.org/10.1557/PROC-133-269

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  • DOI: https://doi.org/10.1557/PROC-133-269

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