Ferdian, Deni
and Josse, Claudie and Nguyen, Patrick and Gey, Nathalie and Ratel-Ramond, Nicolas and De Parseval, Philippe and Thebault, Yannick and Malard, Benoît and Lacaze, Jacques and Salvo, Luc
Chinese Script vs Plate-Like Precipitation of Beta-Al9Fe2Si2 Phase in an Al-6.5Si-1Fe Alloy.
(2015)
Metallurgical and Materials Transactions A, 46 (7). 2814-2818. ISSN 1073-5623
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(Document in English)
PDF (Author's version) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader 1MB |
Official URL: http://dx.doi.org/10.1007/s11661-015-2917-1
Abstract
The microstructure of a high-purity Al-6.5Si-1Fe(wt pct) alloy after solidification at various cooling rates was investigated. In most of the cases, the monoclinic beta-Al9Fe2Si2 phase was observed as long and thin lamellae. However, at a very slow cooling rate, Febearing precipitates with Chinese script morphology appeared together with lamellae. Further analysis showed all these Chinese script precipitates correspond also to the monoclinic beta phase. This finding stresses that differentiating second phases according to their shape may be misleading.
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