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Monte Carlo study of precipitation of two phases in a ternary alloy

Abinandanan, TA and Raju, AP and Rajesh, M (1999) Monte Carlo study of precipitation of two phases in a ternary alloy. In: Proceedings of the International Conference on Solid-Solid Phase Transformations '99, 24-28 May 1999, Kyoto, Japan, pp. 753-756.

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Abstract

Using a residence-time Monte Carlo algorithm, we have simulated microstructural evolution in two-dimensional, ternary (ABC) alloys in which a B-rich (P) and a C-rich (γ) phase precipitates out simultaneously from a supersaturated A-rich (α) parent phase. We present our results for an alloy containing 5% B and 5% C. While the microstructure during early stages contains both isolated particles (of β and γ) and composite particles (i.e., β and γ particles which are in contact with each other), it contains mostly composite particles during late stages. This result indicates that the presence of composite particles in a microstructure is mainly due to their enhanced stability with respect to isolated particles during coarsening. The coarsening kinetics obeys the classical $R^3\propto$t temporal power law, indicating that this law is valid even when the particles are in a composite form

Item Type: Conference Paper
Keywords: alloys;crystal microstructure;digital simulation;Monte Carlo methods;precipitation
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 25 Jul 2007
Last Modified: 22 Feb 2012 08:12
URI: http://eprints.iisc.ernet.in/id/eprint/10299

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