A computer simulation technique for spinodal decomposition and ordering in ternary systems

Journal Article · Wed Sep 01 04:00:00 EDT 1993 · Scripta Metallurgica et Materialia; (United States)

DOI:https://doi.org/10.1016/0956-716X(93)90419-S· OSTI ID:6467104

Chen, Long Qing ^[1]

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1. Pennsylvania State Univ., Univ. Park, PA (United States). Dept. of Materials Science and Engineering

To the author's knowledge, the nonlinear dynamics of inhomogeneous morphological evolution during spinodal decomposition and ordering including the subsequent coarsening process in a ternary system has not been extensively investigated. To predict morphological evolution in an inhomogeneous system without a priori assumptions on the transformation sequence and morphologies, they have to resort to computer simulations. The main objective of this work is, therefore, to develop a computer simulation technique which can predict microstructural evolution during ordering and spinodal decomposition in ternary alloys. Since the present kinetic model is microscopic in nature, it can be applied to model both ordering and phase separation as well as simultaneous ordering and phase separation. The elastic energy effect on the decomposition kinetics can also be easily incorporated into the model. As an example, a computer simulation of isostructural spinodal decomposition in a ternary alloy was performed in a simple two-dimensional square lattice.

• OSTI ID: 6467104
• Journal Information: Scripta Metallurgica et Materialia; (United States), Journal Name: Scripta Metallurgica et Materialia; (United States) Vol. 29:5; ISSN SCRMEX; ISSN 0956-716X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102* -- Metals & Alloys-- Structure & Phase Studies
ALLOY SYSTEMS
COMPUTERIZED SIMULATION
KINETICS
MATHEMATICAL MODELS
MICROSTRUCTURE
MORPHOLOGY
NONLINEAR PROBLEMS
ORDER-DISORDER TRANSFORMATIONS
PHASE STUDIES
PHASE TRANSFORMATIONS
SIMULATION
TERNARY ALLOY SYSTEMS