Evidence of High-Temperature Strain Heterogeneities in a Nickel-Based Single-Crystal Superalloy

Damien Texier (1) , Daniel Monceau (1) , Ronan Mainguy (1) , Eric Andrieu (1)

1 CIRIMAT - Centre interuniversitaire de recherche et d'ingenierie des matériaux

The creep behavior of a single crystal superalloy is investigated at the dendritic scale. The chemical segregation in the dendritic structure is correlated to strain heterogeneities after creep experiments on ultrathin specimens. It is shown that primary dendrite axes have a strengthening effect.

Domaines: Mécanique des matériaux [physics.class-ph]; Micro et nanotechnologies/Microélectronique; Mécanique des matériaux [physics.class-ph]; Matériaux

Damien Texier, Daniel Monceau, Ronan Mainguy, Eric Andrieu. Evidence of High-Temperature Strain Heterogeneities in a Nickel-Based Single-Crystal Superalloy. Advanced Engineering Materials, 2014, 16 (1), pp.60 - 64. ⟨10.1002/adem.201300016⟩. ⟨hal-01662584⟩