Multiscale modeling of DS alloys applied to material element and structural calculations

Abstract eng:
The purpose of this paper is twofold. A first section deals with the development and calibration of a multiscale model able to describe the anisotropic viscoplastic behaviour of a directionally solidified material. The model is applied to a NickelBase superalloy used in turbine blades. The second part proposes a solution to estimate the scatter observed between several components due to the fact that the grain size is not small with respect to the component size.

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