Review

A review on the modeling and simulations of solid-state diffusional phase transformations in metals and alloys

State Key Laboratory of Solidification Processing, Department of Materials Science and Engineering, Northwestern Polytechnical University, P. O. Box 542, Xi'an, Shaanxi, 710072, PR China

^* e-mail: lihongwei@nwpu.edu.cn

Received: 6 March 2018
Accepted: 16 April 2018

Abstract

Solid-state diffusional phase transformations are vital approaches for controlling of the material microstructure and thus tailoring the properties of metals and alloys. To exploit this mean to a full extent, much effort is paid on the reliable and efficient modeling and simulation of the phase transformations. This work gives an overview of the developments in theoretical research of solid-state diffusional phase transformations and the current status of various numerical simulation techniques such as empirical and analytical models, phase field, cellular automaton methods, Monte Carlo models and molecular dynamics methods. In terms of underlying assumptions, physical relevance, implementation and computational efficiency for the simulation of phase transformations, the advantages and disadvantages of each numerical technique are discussed. Finally, trends or future directions of the quantitative simulation of solid-state diffusional phase transformation are provided.