High Temperature Creep Behavior of Single Crystal Gammpraime and Gamm Laloys

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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Correspondence to M. V. Nathal.

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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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