Publications

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2016
El-Aziz, A. M., M. A. El-Hady, and W. khlifa, "Effect of High Intensity Ultrasonic Treatment on the Microstructure, Corrosion and Mechanical Behaviour of AC7A Aluminum Alloy", Light Metals, vol. 2016, pp. 721–724, 2016.
Fadl, M., W. Khalifa, and S. El-hadad, "Effect of Soaking Treatment on the Microstructure and Wear Behavior of the Ultrasonic Melt-Treated B390 Hypereutectic Al-Si Alloy", TMS Annual Meeting, Light Metals, vol. 2016, Nashiville, USA, TMS, pp. 821-825, 2016.
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.
2015
Moustafa, T., W. Khalifa, R. El-Koussy, and A. N. El-Reheem, "Effect of Metallurgical Factors on Welding of Reinforcing Steel Bars", MONTREAL’2015 AES-ATEMA 22nd International Conference “Advances and Trends in Engineering Materials and their Applications, Montreal, Canada, June 15-19, 2015.
El-hadad, S., M. Waly, and W. Khalifa, "Microstructure Evolution and Mechanical Properties of α-β Heat Treated Ti-6Al-4V Alloys", MONTREAL’2015 AES-ATEMA 22nd International Conference “Advances and Trends in Engineering Materials and their Applications, Montreal, Canada, June 15-19, 2015.
Khalifa, W., O. El_kady, and A. Eid, "Manufacture of Ferrite Magnets and Polymer-Bonded Magnets: Laboratory Scale Experiments", International Conference on Industry Academia Collaboration, Cairo, Egypt, 6-8 April 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.
Khalifa, W., التشكيل بالطرق فى أحد المصانع المصرية - معدل , , 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.
Khalifa, W., Introduction to Materials Science and Engineering مقدمة إلى علم وهندسة المواد 55 مقطع فيديو, , 1st: You Tube, 2011.
Khalifa, W., تطبيقات الموجات فوق الصوتية فى تجمد وسباكة الفلزات, , 1st: You Tube, 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.
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