Coste, Sébastien and Andrieu, Eric and Huez, Julitte
Effect of a heterogeneous distribution of particles on the
formation of banded grain structure in wrought Alloy 718.
(2005)
Materials Science and Engineering A, (1-2). 92-98. ISSN 0921-5093
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(Document in English)
PDF (Author's version) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader 536kB |
Official URL: http://dx.doi.org/10.1016/j.msea.2004.12.037
Abstract
Alloy 718 is known to be sensitive to interdendritic segregation formed during ingot solidification. The occurrence of banded grain structures under heat treating conditions close to 1000 ° C related to interdendritic segregation is often reported. In order to have a better understanding of this microstructural evolution, an extensive experimental program has been carried out. Consequently, a model taking into account the selective dissolution of δ-phase (Ni3Nb) is proposed. A grain growth simulation by Monte-Carlo method is then used to illustrate the grain structure evolution in a banded particle distribution. By comparing experimental data and computer simulation, the relationship between the Monte-Carlo step and the real time is assessed and the range of parameters when heterogeneous microstructures appear is specified.
| Item Type: | Article |
|---|---|
| Additional Information: | Materials Science and Engineering A : http://www.sciencedirect.com/science/journal/09215093 |
| Audience (journal): | International peer-reviewed journal |
| Uncontrolled Keywords: | |
| Institution: | Other partners > Aubert & Duval Fortech (FRANCE) Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE) Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE) French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE) |
| Laboratory name: | |
| Statistics: | download |
| Deposited On: | 20 Jun 2008 09:28 |
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