Low-cycle fatigue of a nickel-based superalloy at high temperature: Simplified micromechanical modelling

Valerie Brien (1) , L. P Kubin (2, 3) , B. Décamps (4)

1 LSG2M - Laboratoire de Science et Génie des Matériaux et de Métallurgie
2 LEM - ONERA - CNRS - Laboratoire d'étude des microstructures [Châtillon]
3 ONERA - The French Aerospace Lab [Châtillon]
4 CMTR - Chimie métallurgique des terres rares

This work is focused on the micromechanical modelling of the low cycle fatigue of the nickel based ' superalloy AM1 at high temperature. The nature of the activated slip systems in the different types of channels of the  phase is analysed, taking into account the combined effects of the applied and internal stresses. The latter are split into two contributions, misfit stresses and compatibility stresses between the elastic ' phase and the elasto-plastic  phase, which

Domaines: Optique [physics.optics]; Chimie inorganique; Science des matériaux [cond-mat.mtrl-sci]; Matériaux

Valerie Brien, L. P Kubin, B. Décamps. Low-cycle fatigue of a nickel-based superalloy at high temperature: Simplified micromechanical modelling. Philosophical Magazine a, 2001, 81 (9), pp.2285-2301. ⟨10.1080/01418610108217148⟩. ⟨hal-02882484⟩