Publications

Fundamentals: Alloy thermodynamics and kinetics of diffusion

Steinbach, I. and Roslyakova, I. and Abrahams, K.

NICKEL BASE SINGLE CRYSTALS ACROSS LENGTH SCALES
Volume: Pages: 21-40
DOI: 10.1016/B978-0-12-819357-0.00009-3
Published: 2021

Abstract
The general mechanisms needed to understand thermodynamic and kinetic stability of the microstructure of superalloys are reviewed. Microstructural transformations during processing and service is described as a diffusion controlled transformation, where microstructural stability rests on slow diffusing elements and on a large partitioning of these elements between the phases. The theoretical tools for thermodynamic stability and diffusion are implemented in CALPHAD type data bases and softwares. The phase-field method, as the most advanced tools for simulation solidification, heat treatment and rafting under creep conditions, is shortly introduced. © 2021 Elsevier Inc. All rights reserved.

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