Publications

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Journal Article
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.
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.
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.
MOUSSA, M. E., E. L. - H. S. ADAD, and W. Khalifa, "Influence of chemical modification by Y2O3 on eutectic Si characteristics and tensile properties of A356 alloy", Trans. Nonferrous Met. Soc. China, vol. 29, issue 3, pp. 1365−1374, 2019. trans._nonferrous_met._soc._china.pdf
El-hadad, S., M. Nady, W. Khalifa, and A. Shash, "Influence of heat treatment conditions on the mechanical properties of Ti–6Al–4V alloy", Canadian Metallurgical Quarterly , vol. 57, issue 2, pp. 186-193, 2018.
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.
M. Yoshida, O. M., K. W. R. Ichiki, and H. T. T. K. C. Tekmen, Y. Tsunekawa, "Mechanical Properties of Aluminum Nitride Layer Formed by Duplex Coating of Barrel Nitriding and Plasma Nitriding", journal of Plasma Process and Polymers, vol. 6, pp. S310–S313, 2009.
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.
El Nashar, R. M., A. M. El-Aziz, W. Khalifa, and N. T. Abdel Ghani, "Microstructure and corrosion behaviour of Al-Si alloy treated by high intensity ultrasonic vibrations", Ochrona przed Korozją (Corrosion Protection), pp. 34-39, 2012.
Khalifa, W., S. El-Hadad, and Y. Tsunekawa, "Microstructure and Wear Behavior of Solidification Sonoprocessed B390 Hypereutectic Al-Si Alloy", METALLURGICAL AND MATERIALS TRANSACTIONS A, vol. VOLUME 44A, issue DECEMBER, pp. 2013—5817, 2013.
Khalifa, W., S. El-Hadad, and Y. Tsunekawa, "Microstructure characteristics and tensile property of ultrasonic treated-thixocast A356 alloy", Trans. Nonferrous Met. Soc. China, vol. 25 , issue October, pp. 3173−3180, 2015.
M. Yoshida, O. M., T. C. R. Ichiki, and H. T. W. Khalifa, Y. Tsunekawa, "A novel method for the production of AlN film with high adhesion on Al substrate", Journal of Plasma Fusion Research SERIES, vol. 8, pp. pp. 1447-1450, 2009.
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.
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.
El-hadad, S., M. Ghaith, A. Yassin, M. Kamal‏, and W. Khalifa, "Optimizing the Surface Treatment Processes to Enhance the Bioactivity of Ti–6Al–7Nb Alloy", Transactions of the Indian Institute of Metals 73 ‏, vol. 73, issue 11, pp. 2727-2738, 2020.
Moustafa, T., W. Khalifa, R. M. El-Koussy, and N. A. El-Reheem, "Optimizing theWelding Parameters of Reinforcing Steel Bars", Arab J Sci Eng, vol. 41, issue 5, pp. 1699–1711, 2016.
Khalifa, W., and Y. Tsunekawa, "Production of Grain-Refined Billets of the AC7A Al-Mg Alloy via Solidification in Ultrasonic Field", Transactions of Nonferrous Metals Society of China, vol. 26, issue 5, pp. 930−937, 2016.
El-Aziz, A., D. S. Raid, and W. Khalifa, "Stability and corrosion behavior of A356 Al-Si alloy treated by high intensity ultrasonic vibrations", journal of Corrosion Protection, vol. vol. 52, issue No.11, pp. pp. 569, 2009.
MOUSSA, M. E., S. El-hadad, and W. Khalifa‏, "Strengthening Effect of Y 2 O 3 on AZ92 Magnesium Alloy Using Stir Casting Process‏", International Journal of Metalcasting, vol. 15, issue 3, pp. 818-828, 2021.
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.
Zaki, A., S. El-hadad, and KHALIFA, A. M., "Surface modification effects on microstructure and mechanical properties of bio-titanium alloys", Materials Science Forum, vol. 909, issue -, Tokyo Japan, Trans Tech Publications, Switzerland, pp. 199-204, 2017.
Okumiya, M., M. Yoshida, R. Ichiki, K. W. C. Tekmen, and T. K. Y. Tsunekawa, "Surface Modification of Aluminum Using a Combined Technique of Barrel Nitriding and Plasma Nitriding", journal of Plasma Process and Polymers, vol. 6, pp. S287–S290, 2009.
El-Hadad, S., W. Khalifa, and A. Nofal, "Surface modification of investment cast-316L implants: Microstructure effects", Materials Science and Engineering: C, vol. 48, issue 3, pp. 320-327, 2015.
El-Hadad, S., M. Ibrahim, M. Mourad, and W. Khalifa, "Ultrasonic Detection of Microstructure Features in Ti-Alloyed Ductile Iron", Trans Indian Inst Met, vol. 72, issue 9, pp. 2349–2358, 2019. ultrasonic_detectindian.pdf
Khalifa, W., Y. Tsunekawa, and M. Okumiya, "Ultrasonic Grain Refining Effects in A356 Al-Si Cast Alloy", Transactions of the American Foundry Society, pp. 91-98, 2010.
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