Publications

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2000
2002
Khalifa, W., F. Samuel, and J. Gruzleski, "Iron Intermetallic Phases in the Al-Corner of the Al-Si-Fe System", Internationl Conference on "Enabling Technologies for Light Metals and Composite Materials and Their End-Products" (COM 2002),, Montreal, 11-14 Aug. 2002, Metallurgical Society of the Canadian Institute of Mining and Metallurgy,, pp. pp.285-303, 2002.
2003
Khalifa, W., F. Samuel, and J. Gruzleski, "Iron Intermetallic Phases in the Al-Corner of the Al-Si-Fe System", Metallurgical and Materials Transactions A,, vol. 34A, pp. 807-825, 2003.
2004
M.R. El Koussy, E. M. I. S., A. D. M. M. W. Khalifa, and M. Bueckins, "Effects of Thermal Aging on Microstructure and Mechanical Properties of Duplex Stainless Steel Weldments", Materials Science and Technology, vol. 20, issue 3, pp. 375-381, 2004.
and W. Khalifa, F. Samuel, G. J., "Nucleation of Solid Aluminum on Inclusion Particles Injected into Al-Si-Fe Alloys", Metallurgical and Materials Transactions A, vol. 35A, pp. 3233-3250, 2004.
2005
S. El-Hadad, K. W., S. F. H. A.M. Samuel, and V. S. and H.D. Doty, "Effect of Bi and Ca Additions on the Solidification Thermal Parameters of Sr-modified 319 Alloys", AFS Transactions, vol. 113, pp. 5-177, 2005.
Khalifa, W., F. Samuel, and J. Gruzleski, "Inclusion Additions to Molten Aluminum Alloys Using the Gas Injection Technique: Process and Analysis", AFS Transactions, vol. 113, pp. 5-179, 2005.
Khalifa, W., G. J. F. Samuel, and D. H. W. S. and Valtierra, "Nucleation of Fe-intermetallic Phases in the Al-Si-Fe Alloys", Metallurgical and Materials Transactions A, vol. 36A, pp. 017-1032, 2005.
2006
Khalifa, W., A. M. Samuel, F. H. SAMUEL, and V. S. and H.W. Doty, "Effect of Bi and Ca Additions and Heat Treatment on the Microstructure and Mechanical Properties of the B319 Al Cast Alloys", Proc. 6th Arab Foundry Symposium “Arabcast 2006”, Sharm El-Sheikh – Egypt, The Egyptian Foundrymen’s Soc, pp. pp. 1-13, 2006.
Khalifa, W., S. F. H. A.M. Samuel, and H. W. Doty, "Metallographic Observations of the alpha-AlFeSi Phase and Its Role in Porosity Formation in the Al-7%Si Alloys", International Journal of Cast Metals Research, vol. 19, issue 3, pp. 156-66, 2006.
Khalifa, W., F. H. SAMUEL, J. E. Gruzleski, and V. S. and H.W. Doty, "Role of Inclusions in the Nucleation of Fe-Intermetallic Phases in the Al-Si-Fe Alloys", Proc. 12th Arab International Aluminum Conference (Arabal-2006), Sharm El-Sheikh – Egypt, The Aluminum Company of Egypt (Egyptalum), pp. pp.257-80, 2006.
Abdel-Aziz, A., W. Khalifa, H. Ahmed, and S. El-Taweel, "Structure and Corrosion Behavior of Dissimilar Steel Weldments in Acid Media", Corrosion Protection, vol. 49, issue 11, pp. 275-81, 2006.
Khalifa, W., and R. El-Koussy, Earing Behavior of the 1050 Aluminum Alloy: Progress Report 1, Effect of DC Casting and Hot Rolling Conditions, , Naga Hammady, the Aluminum Company of Egypt, pp. 1-23, June 2006.
Nabil, M., and W. Khalifa, Materials Selection for Drainage-Water Pumps, , Cairo, Egypt, Drainage Research Center – The Ministry of Water Recourses and Irrigation, pp. 1-35, June 2006.
Khalifa, W., and R. El-Koussy, Earing Behavior of the 1050 Aluminum Alloy: Progress Report 2, Earing of Thick Sheets, , Naga Hammady, Egypt, Aluminum Company of Egypt, pp. 1-16, September 2006.
2007
Abd-Allah, M., W. Khalifa, S. A. Hafiz, K., and N. Abdel Raheem, "Assessment of Flux Composition in A-TIG Weldments", Metals Processing and Manufacturing Conference (MPM 2007) Nov. 19-22, Cairo – Egypt, CMRDI, pp. , pp. 9-23., 2007.
Khalifa, W., A. M. Samuel, F. H. SAMUEL, H. W. Doty, and S. VALTIERRA, "Effet des additions de bismuth et de calcium et du traitement thermique sur la microstructure et les propriétés mécaniques des alliages d'aluminium moulés B319", Fonderie, Fondeur d'aujourd'hui, issue 270, pp. 13-24, 2007.
El-Aziz, A. M., W. Khalifa, H. Ahmed, and S. El-Taweel, "Structure and Corrosion Behaviour of Dissimilar Steel Weldments in Acid Media", German - Egyptian Year of Science & Technology, Materials Science Workshop, on Materials Based Manufacturing Technologies, CMRDI, Helwan, Cairo, Egypt., 7-9 May 2007.
2008
Abd-Allah, M., W. Khalifa, S. A. Hafiz, K., and A. Raheem, "Effect of Flux on the Quality of A-TIG Welds", Proceedings of The 9th Cairo University International Conference on Mechanical Design and Production (MDP-9), January 8-10, (2008), , Cairo, Egypt, pp. paper no. 277, 2008.
Tash, M., W. Khalifa, and E. H. A., "Effect of Metallurgical Differences between 356 and 384 Alloys on Their Mechanical Properties", Proceedings of The 9th Cairo University International Conference on Mechanical Design and Production (MDP-9), January 8-10, (2008), , , Cairo, Egypt, pp. pp. 992-1004, 2008.
Khalifa, W., Y. Tsunekawa, and M. Okumiya, "Effect of Reheating to the Semisolid State on the Microstructure of the A356 Aluminum Alloy Produced by Ultrasonic Melt-treatment", Solid State Phenomena, vol. 141-143, pp. 499-504, 2008.
Khalifa, W., Y. Tsunekawa, and M. Okumiya, "Effect of Ultrasonic Melt Treatment on the Microstructure of A356 Aluminum Cast Alloys", International Journal of Cast Metals Research, vol. 21, issue 1-3, pp. 129-134, 2008.