Coarsening in multiphase multicomponent systems. 1: The mean field limit

Journal Article · Thu Dec 10 23:00:00 EST 1998 · Acta Materialia

DOI:https://doi.org/10.1016/S1359-6454(98)00316-4· OSTI ID:328290

Hoyt, J J ^[1]

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1. Sandia National Labs., Livermore, CA (United States). Computational Materials Science Dept.

Ostwald ripening in multicomponent systems where an arbitrary number of precipitate phases are coarsening is examined. Within the mean field approximation it is found that the coarsening rate constant for each phase is identical to the previously derived result for a single phase growing in a multicomponent system. Also, the late time particle size distribution for each phase, when normalized by its average radius, is equivalent to the distribution predicted by Lifschitz and Slyozov. Finally, the decay rates of each of the supersaturation terms is derived.

• Research Organization: Sandia National Laboratory
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 328290
• Journal Information: Acta Materialia, Journal Name: Acta Materialia Journal Issue: 1 Vol. 47; ISSN 1359-6454; ISSN ACMAFD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALLOY SYSTEMS
GRAIN GROWTH
MATHEMATICAL MODELS
MICROSTRUCTURE
PARTICLE SIZE
PRECIPITATION