Publications

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2023
Abdel Rahman, M. S., W. Khalifa, and M. T. Abdu, "Failure Analysis of Fatigue Failed M20 Class 8.8 Galvanized Steel Bolt", Engineering Failure Analysis, 2023, 150, 107304, 2023.
Azzam, M., and W. Khalifa, "Investigation of duplex stainless steel flow line failure", Engineering Failure Analysis, 2023, 143, 106935, 2023.
Abdu, M. T., W. Khalifa, and M. S. Abdel Rahman, "Investigation of erosion-corrosion failure of API X52 carbon steel pipeline", Scientific Reports, vol. 13, issue (1), pp. 20494, 2023.
Azzam, M., and W. Khalifa, "Investigation of subsea oil pipeline rupture", Engineering Failure Analysis, 2023, 152, 107415, vol. 152, issue 107415, pp. 1-25, 2023.
2022
Abdu, M. T., W. Khalifa, and M. S. Abdelrahman, "Microbiologically Influenced Corrosion of Austenitic Stainless-Steel TP-316LN Under Demineralized Water", J Fail. Anal. and Preven, vol. 2022, issue 22, pp. 1816–1825, 2022. mic_paper_2022.pdf
2019
Abdel-Salama, M., S. El-Hadad, and W. Khalifa, "Effects of microstructure and alloy composition on hydroxyapatite precipitation on alkaline treated α/β titanium alloys", Materials Science & Engineering C, vol. 104, issue 7, pp. 109974, 2019. msechap.pdf
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
2018
Abdel-salam, M., W. Khalifa, and S. El-Hadad, "Hydroxyapatite Precipitation on Ti-6Al-4V and Ti-6Al-7Nb Alloys", Ceramic Transactions: The American Ceramic Society - Wiley, pp. 153-168, 2018.
2017
Abdelrahman, M. S., M. T. Abdu, and W. Khalifa, "Assessment of Eutectic Modification Level in Al-Si Alloys via Thermal Analysis", Light Metals, Los Angelos, TMS, pp. 885-894, 2017.
Abbas, A., A. Seif, I. Elmahallawi, and W. Khalifa, "Microstructure and Hardness of Subzero Quenched and Heat Treated Ti-6Al-4V Alloy‏", Proceedings of the 3rd Pan American Materials Congress, Los Angelos, TMS, pp. 379-391, 2017.
Khalifa, W., M. T. Abdu, M. S. Abdelrahman, and Y. Tsunekawa, "Microstructure Control in A356 Al-Si Alloy with Ultrasonic Melt Treatment", Light Metals, Los Angelos, TMS, pp. 1013-1019, 2017.
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.
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.
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.
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.
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.
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.
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.
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.
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.