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1. Rôle des interfaces dans les mécanismes élémentaires de déformation des superalliages base nickel

Author

Allan James Morton, J.M. Pénisson, Valerie Brien, Brigitte Décamps, and Marc Condat

Subjects
Superalloy, 020303 mechanical engineering & transports, Materials science, 0203 mechanical engineering, Creep, [PHYS.HIST]Physics [physics]/Physics archives, Metallurgy, General Physics and Astronomy, 02 engineering and technology
Abstract

γ/γ' interfaces play an important part in the behaviour of the Ni-based superalloys used in the aeronautic industry. In particular, the description of the interaction between dislocations and interfaces is essential to understand the behaviour of these alloys under thermal and/or mechanical loading. A fine analysis at different levels of the behaviour of these dislocations after different mechanical tests (creep, dynamical tests, fatigue) allowed us to describe the elementary mechanisms that control the deformation.

Published
1996
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