Publications

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2015
El-Mahallawi, I., W. Khalifa, A. Shash, and N. Aref, "Roadmap to Egyptian Casting Industry: Material Technology", International Conference on Industry Academia Collaboration, Cairo, Egypt, 6-8 April 2015.
Khalifa, W., CWI part A Module 2 - Safety, , 1st: You Tube, 2015.
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.
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.
2014
Khalifa, W., S. El-Hadad, and Y. Tsunekawa, "Microstructure Evolution and Mechanical Properties of Sonoprocessed-Thixocast AC4C Billets", World Foundry Congress , Bilbao, Spain, May 21, 2014.
Khalifa, W., and Y. Tsunekawa, "Microstructure Modification of Al-4.5%Mg Alloy Using Ultrasonic Treatment ", World Foundry Congress, Bilbao, Spain, May 20, 2014.
Khalifa, W., CWI part A Lecture1 , , 1st: You Tube, 2014.
2013
Abdel-Hakeem, A., M. Ghanem, W. Khalifa, and N. Abdel-Rehim, "Effect of Welding Parameters of FSW on Microstructure, Tensile Strength and Bendability of AA2024-T4 Aluminum Alloy", Bulletin of Tabbin Institute of Metallurgical Studies, vol. 2013, issue Jan, pp. 23-28, 2013.
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.
2012
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.
2011
El-Koussy, M. R., and W. Khalifa, "Investigation of the Main Cause of Driller String Stabilizer Failures", 1st International Quadrennial ICF Conference in Middle East and Africa, “Processing, Performance and Failure Analysis of Engineering Materials, Luxor, EGYPT., Nov. 14–17, 2011.
Khalifa, W., and Y.Tsunekawa, "Microstructure Control of the B390 Hyper-eutectic Al-Si Alloy Using Solidification Soniprocessing", 1st International Quadrennial ICF Conference in Middle East and Africa, “Processing, Performance and Failure Analysis of Engineering Materials”, Luxor, EGYPT, Nov. 14–17, 2011.
2010
Khalifa, W., Y. Tsunekawa, and M. Okumiya, "Thixocasting of AC4CH Alloy Billets Prepared by Ultrasonic Treatment", the 2nd International Symposium on Advanced Plasma Science and Its Applications for Nitrides and Nanomaterials (ISPlasma2010), Meijo University, Nagoya, Japan, March 7-10, 2010.
Okumiya, M., M. Yoshida, Y. Tsunekawa, and W. Khalifa, "Effects of the Process Parameters in Barrel Nitriding on Surface Roughness of Aluminum Nitride Layer and Formation of Deposited Layer", AES-ATEMA’ 2010, Fifth International Conference on Advances and Trends in Engineering Materials and their Applications, Monreal & Quebec City, Canada, June 27 – July 3, 2010.
Khalifa, W., Y. Tsunekawa, and M. Okumiya, "Effect of Ultrasonic Melt-Treatment on the Eutectic Silicon and Iron Intermetallic Phases in Al-Si cast Alloys", Materials Science Forum, vol. 638-642 , issue 2010, pp. 431-436, 2010.
W. Khalifa, A. D. M. M., Y. Tsunekawa, and M. Okumiya, "Effect of Ultrasonic Treatment on Fe-intermetallic Phases in ADC12 Al-Si Die Cast Alloy", Journal of Materials Processing Technology, pp. 2178–2187, 2010.
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.
2009
Khalifa, W., Y. Tsunekawa, and M. Okumiya, "Ultrasonic Grain Refining Effects in AC4CH Al-Si Cast Alloy", Symposium on the Sustainable Mechanical System, Toyota Technological Institute, Nagoya, Japan, December 4th, 2009.
Khalifa, W., Y. Tsunekawa, and M. Okumiya, "Effect of Ultrasonic Melt-Treatment on the Eutectic Silicon and Iron Intermetallic Phases in Al-Si cast Alloys", International Conference on Processing & Manufacturing of Advanced Materials (Thermec’2009), Berlin, Germany, August 24-29th, 2009.
El-Aziz, A., D. S. Raid, and W. Khalifa, "Stability and corrosion behavior of A356 Al-Si alloy treated by high intensity ultrasonic vibrations", 14th All-Polish Corrosion Symposium-“New Achievements in Corrosion Research and Engineering”- 327th Event of the European Federation of Corrosion, Jastrząb/Poraj (near Czestochowa) Poland, 25th - 27th Nov., 2009.
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.
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.