Numéro
J. Phys. IV France
Volume 03, Numéro C7, Novembre 1993
The 3rd European Conference on Advanced Materials and Processes
Troisiéme Conférence Européenne sur les Matériaux et les Procédés Avancés
Page(s) C7-355 - C7-358
DOI http://dx.doi.org/10.1051/jp4:1993755
The 3rd European Conference on Advanced Materials and Processes
Troisiéme Conférence Européenne sur les Matériaux et les Procédés Avancés

J. Phys. IV France 03 (1993) C7-355-C7-358

DOI: 10.1051/jp4:1993755

Chemical composition around γ/γ' interface in single crystal nickel-based superalloys in the early stage of creep

A. RACINE and A. HAZOTTE

Laboratoire de Science et Génie des Matériaux Métalliques, URA 159 du CNRS, Ecole des Mines de Nancy, Parc de Saurupt, 54042 Nancy cedex, France


Abstract
The aim of this work was to examine if a chemical anisotropy around γ' precipitates could be induced by the applied stress at the beginning of a compressive creep test. This question was solved in terms of concentration profiles around γ' in order to see which alloying elements diffuse and if they do, in which direction. The results were discussed in the light of finite element simulations where the local stress states were determined in terms of equivalent Von Mises stress and hydrostatic pressure.



© EDP Sciences 1993