2003
DOI: 10.1016/s1359-6454(02)00516-5
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Phase-field modeling of bimodal particle size distributions during continuous cooling

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Cited by 133 publications
(81 citation statements)
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“…Both the secondary and tertiary γ′ form on cooling from the homogenization temperature, with the secondary γ′ forming before the tertiary γ′, at higher temperature. [39,40] The higher elemental mobility during the formation of the secondary γ′ produces larger precipitates and facilitates the movement of Mo and Cr out of the γ′ and into the matrix phase in which they preferentially reside. In contrast, as a result of the lower temperature and therefore reduced diffusion during the formation of the tertiary γ′, this distribution is generally enriched in those elements that partition to the γ phase during secondary formation, resulting in a composition further from the equilibrium predicted value.…”
Section: B Precipitate Compositionmentioning
confidence: 99%
“…Both the secondary and tertiary γ′ form on cooling from the homogenization temperature, with the secondary γ′ forming before the tertiary γ′, at higher temperature. [39,40] The higher elemental mobility during the formation of the secondary γ′ produces larger precipitates and facilitates the movement of Mo and Cr out of the γ′ and into the matrix phase in which they preferentially reside. In contrast, as a result of the lower temperature and therefore reduced diffusion during the formation of the tertiary γ′, this distribution is generally enriched in those elements that partition to the γ phase during secondary formation, resulting in a composition further from the equilibrium predicted value.…”
Section: B Precipitate Compositionmentioning
confidence: 99%
“…This paper considers the temperature dependency of the mobility coefficients (M), interaction and dilution parameters (v and z). As the temperature dependency of the gradient energy coefficient (j) may be quite weak [20,21], it is currently neglected in this paper. Theoretically, the mobility coefficients of different materials (polymer and bitumen) are related to their self-diffusion coefficients.…”
Section: Temperature Dependency Of the Model Parametersmentioning
confidence: 99%
“…Reference [15] have claimed that the sharp-interface models were inappropriate for describing grains with sizes which are close to the boundary width, and the diffuse-interface field models have already been proposed to describe a polycrystalline microstructure by many orientation field variables [15,[17][18][19] . In these models, grain boundaries are assumed to be diffuse with finite thickness, and its width is actually the range of field variables which is changed across the flat grain boundary.…”
Section: Grain Boundary Range Among Grainsmentioning
confidence: 99%