Extension of an anisotropic creep model to general high temperature deformation of a single crystal superalloy

L.-M. PAN; R.N. GHOSH; M. McLEAN

doi:doi:10.1051/jp4:19937101

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)		C7-629 - C7-634
DOI		https://doi.org/10.1051/jp4:19937101

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) C7-629-C7-634
DOI: 10.1051/jp4:19937101

Extension of an anisotropic creep model to general high temperature deformation of a single crystal superalloy

L.-M. PAN¹, R.N. GHOSH² and M. McLEAN¹

¹ Department of Materials, Imperial College of Science, Technology [MATH] Medicine, Prince Consort Road, London SW7 2BP, U.K.
² National Metallurgical Laboratory, Jamshedpur, Bihar 831007, India

Abstract
A physics based model has been developed that accounts for the principal features of anisotropic creep deformation of single crystal superalloys. The present paper extends this model to simulate other types of high temperature deformation under strain controlled test conditions, such as stress relaxation and tension tests at constant strain rate in single crystals subject to axial loading along an arbitrary crystal direction. The approach is applied to the SRR99 single crystal superalloy where a model parameter database is available, determined via analysis of a database of constant stress creep curves. A software package has been generated to simulate the deformation behaviour under complex stress-strain conditions taking into account anisotropic elasticity.