期刊
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
卷 385, 期 1-2, 页码 166-174出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2004.06.018
关键词
modelling; diffusion; phase transformation; thermodynamics; precipitation
A new model for the evolution of the precipitate structure derived by means of application of the thermodynamic extremum principle is presented. The model describes the evolution of the radii and of the chemical composition of individual precipitates of different phases in the multi-component system. In connection with a proper theory of nucleation, the model is able to describe the evolution of the precipitate structure in the classical stages of nucleation, growth and coarsening as well as interaction of precipitates of different phases, of different chemical composition and of different sizes via diffusion in the matrix. (C) 2004 Elsevier B.V. All rights reserved.
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