OATAO - Open Archive Toulouse Archive Ouverte Open Access Week

Effect of a heterogeneous distribution of particles on the formation of banded grain structure in wrought Alloy 718

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, vol. (n° 1-2). pp. 92-98. ISSN 0921-5093

[img]
Preview
(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 - INPT
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
French research institutions > Centre National de la Recherche Scientifique - CNRS
Laboratory name:
Statistics:download
Deposited By: Thomas Bonnecarere

Repository Staff Only: item control page