As-cast morphology of iron-intermetallics in Al-Si foundry alloys
Dinnis, C. M., Taylor, J. A. and Dahle, A. K. (2005) As-cast morphology of iron-intermetallics in Al-Si foundry alloys. Scripta Materialia, 538: 955-958.
The as-cast three-dimensional morphologies of alpha-Al-15(Fe,Mn)(3)Si-2 and beta-Al5FeSi intermetallics were investigated by serial sectioning. Large beta-Al5FeSi intermetallics were observed to grow around pre-existing dendrite arms. The alpha-Al-15(Fe,Mn)(3)Si-2 intermetallic particle was observed to have a central polyhedral particle and an external highly convoluted three-dimensional structure. (c) 2005 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.