1 23 Journal of Materials Engineering and Performance ISSN 1059-9495 Volume 22 Number 5 J. of Materi Eng and Perform (2013) 22:1331-1340 DOI 10.1007/s11665-012-0425-7 Hot Deformation Behavior of 6061 and 7108 Al-SiCp Composites M. Soliman, A. El-Sabbagh, M. Taha & H. Palkowski