Effect of different solute diffusivities on precipitate coarsening in ternary alloys
| Autor: | M. S. Bhaskar, T.A. Abinandanan |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Particle composition
Materials science General Computer Science Field (physics) General Physics and Astronomy Thermodynamics Materials Engineering (formerly Metallurgy) 02 engineering and technology General Chemistry 021001 nanoscience & nanotechnology 01 natural sciences Computational Mathematics symbols.namesake Mechanics of Materials Phase (matter) 0103 physical sciences Phase rule symbols General Materials Science 010306 general physics 0210 nano-technology Ternary operation Single degree of freedom |
| Zdroj: | IndraStra Global. |
| ISSN: | 2381-3652 |
| Popis: | According to Gibbs phase rule, ternary two phase alloys have a single degree of freedom at equilibrium at a given temperature. Thus, multiple precipitate-matrix equilibrium compositions are possible at the interface. From Philippe-Voorhees' (PV) theory (Philippe and Voorhees, 2013), it is known that during coarsening in multicomponent alloys, precipitate-matrix compositions at the interface during coarsening are not just dependent on the Gibbs-Thomson effect but also on the relative mobilities of the solute elements. Our computer simulations, based on a phase field model, show that this effect of different solute diffusivities on size-dependent particle composition is more pronounced in alloys richer in the slower diffusing solute. (C) 2018 Elsevier B.V. All rights reserved. |
| Databáze: | OpenAIRE |
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