Microstructure evolution during a liquid-liquid decomposition under the common action of the nucleation, growth and Ostwald ripening of droplets
Zhao, Jiuzhou and Li, H.L. and Zhang, X.F. and He, Jie and Ratke, Lorenz (2009) Microstructure evolution during a liquid-liquid decomposition under the common action of the nucleation, growth and Ostwald ripening of droplets. International Journal of Materials Research, 100, pp. 46-52. DOI: 10.3139/146.101788.
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Official URL: http://www.ijmr.de/directlink.asp?MK101788
The kinetic details of the microstructure evolution during a liquid-liquid phase transformation under the common action of the nucleation, the diffusional growth and the Ostwald ripening of the minority phase droplets are investigated numerically. The results demonstrate that the cooling rate during the nucleation period of the minority phase droplets has an overwhelmingly strong effect on the microstructure formation compared with the cooling rate after the nucleation period. Generally, the effect of the Ostwald ripening of the droplets is very weak in an alloy cooled continuously all through the miscibility gap. An obvious coarsening of the droplets occurs only when the cooling rate decreases by more than two orders of magnitude after the nucleation of the precipitated droplets.
|Title:||Microstructure evolution during a liquid-liquid decomposition under the common action of the nucleation, growth and Ostwald ripening of droplets|
|Journal or Publication Title:||International Journal of Materials Research|
|In Open Access:||No|
|In ISI Web of Science:||Yes|
|Page Range:||pp. 46-52|
|Keywords:||Liquid-liquid decomposition, population dynamical method, coarsening, diffusional growth|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Space|
|HGF - Program Themes:||W FR - Forschung unter Weltraumbedingungen|
|DLR - Research area:||Space|
|DLR - Program:||W FR - Forschung unter Weltraumbedingungen|
|DLR - Research theme (Project):||W - Vorhaben Materialwissenschaftliche Forschung (old)|
|Institutes and Institutions:||Institute of Materials Physics in Space|
|Deposited By:||Prof. Lorenz Ratke|
|Deposited On:||11 Feb 2009|
|Last Modified:||07 Feb 2013 20:25|
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