Concurrent model for sharp and progressive columnar to equiaxed transitions validated by directional solidification experiments processed in microgravity conditions

Autor: Robin P. Mooney, Laszlo Sturz, Gerhard Zimmermann, Nathalie Mangelinck-Noël, Henri Nguyen-Thi, Yuze Li, David J. Browne, Shaun McFadden

Publikováno v: Computational Materials Science
Computational Materials Science, 2022, 210, pp.111436. ⟨10.1016/j.commatsci.2022.111436⟩

International audience; Columnar and equiaxed structures, which occur during solidification of metallic alloys, influence the texture and properties of castings, welded joints and additively manufactured components. During transient solidification, w

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cb68cf37e64c45468704f9f9096ba406
https://doi.org/10.1016/j.commatsci.2022.111436

Theoretical analysis to interpret projected image data from in-situ 3-dimensional equiaxed nucleation and growth

Autor: Shaun McFadden, Robin P. Mooney

Publikováno v: Journal of Crystal Growth. 480:43-50

In-situ observation of crystal growth in transparent media allows us to observe solidification phase change in real-time. These systems are analogous to opaque systems such as metals. The interpretation of transient 2-dimensional area projections fro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c47c84f973c2bfffa6e8c03357737b93
https://doi.org/10.1016/j.jcrysgro.2017.10.002

Columnar and Equiaxed Solidification of Al-7 wt.% Si Alloys in Reduced Gravity in the Framework of the CETSOL Project

Autor: M Grohn, Peter W. Voorhees, I. Nagy, Tibor Pehl, Laszlo Sturz, Gildas Guillemot, Shaun McFadden, Nils Warnken, Wim H. Sillekens, András Roósz, Nathalie Mangelinck-Noël, Arnold Rónaföldi, Isabelle Poitrault, D. Todt, Gerhard Zimmermann, Olivier Minster, Ali Saad, Y. Z. Li, Christoph Beckermann, Charles-André Gandin, Robin P. Mooney, Henri Nguyen-Thi, Gerd-Ulrich Grün, Romain Fleurisson, Chih-Hung Chen, Alain Karma

Publikováno v: JOM Journal of the Minerals, Metals and Materials Society
JOM Journal of the Minerals, Metals and Materials Society, Springer Verlag (Germany), 2017, 69 (8), pp.1269-1279. ⟨10.1007/s11837-017-2397-4⟩
JOM Journal of the Minerals, Metals and Materials Society, Springer Verlag (Germany), 2017, 69 (8), pp.1269-1279. 〈10.1007/s11837-017-2397-4〉
JOM Journal of the Minerals, Metals and Materials Society, 2017, 69 (8), pp.1269-1279. ⟨10.1007/s11837-017-2397-4⟩

International audience; During casting, often a dendritic microstructure is formed, resulting in a columnar or an equiaxed grain structure, or leading to a transition from columnar to equiaxed growth (CET). The detailed knowledge of the critical para

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::99541dfc0ce4c302076aa788ee7d3fb8
https://hal-mines-paristech.archives-ouvertes.fr/hal-01543661

An experimental–numerical method for estimating heat transfer in a Bridgman furnace

Autor: Juraj Lapin, Shaun McFadden, Zuzana Gabalcová, Robin P. Mooney

Publikováno v: Applied Thermal Engineering. 67:61-71

Direct measurement of heat flux and heat transfer coefficients in a Bridgman furnace is not always possible using traditional methods. This study characterised a vertical tubular Bridgman furnace using experimental data so that the estimated heat flu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::18aba1cbdcc6fbffc4a3b9346a8287a9
https://doi.org/10.1016/j.applthermaleng.2014.02.048

A Front Tracking Model for Transient Solidification of Al–7wt%Si in a Bridgman Furnace

Autor: David J. Browne, Marek Rebow, Shaun McFadden, Robin P. Mooney

Publikováno v: Transactions of the Indian Institute of Metals. 65:527-530

The Bridgman furnace is widely used in industry and research. This paper outlines a working one-dimensional model for tracking the columnar solidification front in a Bridgman furnace where the pulling velocity, and hence front position, change as a f

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5ffb0e699fd69ac79b3c9013f08c5769
https://doi.org/10.1007/s12666-012-0201-2