Article

Linking phase-field model to CALPHAD: application to precipitate shape evolution in Ni-base alloys

Department of Materials Science and Engineering, The Pennsylvania State University, 119 Steidle Building, University Park, PA 16802-5005, USA
Scripta Materialia (Impact Factor: 2.97). 03/2002; DOI: 10.1016/S1359-6462(02)00013-1

ABSTRACT A three-dimensional phase-field model is proposed with the thermodynamic and kinetic parameters directly extracted from existing databases using the CALPHAD method. We modelled the γ′ precipitate microstructure evolution in a Ni-base alloy, particularly a single precipitate morphology at different sizes using independently assessed thermodynamic, kinetic and structural parameters.

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