Faculty Members

Prof.Mohamed Mohamed Zaky Ahmed

Doctor of Philosophy in Materials Science and Engineering Professor College of Engineering

Mechanical Engineering Department, College of Engineering, Prince Sattam bin Abdulaziz University, Al Kharj 16273, Saudi Arabia.
011-588-8273
moh.ahmed@psau.edu.sa

Curriculum Vitae
Publications

Education

2005-2009 (Ph.D.) Doctor of Philosophy in Materials Science and Engineering Department of Materials Science and Engineering, Faculty of Engineering, The University of Sheffield, Sheffield, UK. Thesis Title: The Development of Thick Section Welds and Ultra-Fine Grain Aluminum Using Friction Stir Welding and Processing. Supervisors: Prof. Bradley Wynne, Prof. Mark Rainforth, and Dr. Philip Threadgill (TWI) 1999-2002 (MSc) Master of Science in Metallurgical and Materials Engineering Department of Metallurgical and Materials Engineering, Faculty of Petroleum and Mining Engineering, Suez Canal University, Suez, Egypt. Thesis Title: Consolidation and Forming of Rapidly Solidified Powder of Some Aluminum Base Alloys. Supervisors: Prof. Samir Ibrahim, Prof. Rashad Ramadan, and Prof. Mohamed Zamzam (Ain Shams University) 1992-1997 (BSc) Bachelor of Science in Metallurgical & Materials Engineering Department of Metallurgical and Materials Engineering, Faculty of Petroleum and Mining Engineering, Suez Canal University, Suez, Egypt. Graduation Project Title: Corrosion control in Petroleum and Petrochemical Industries.

Research Interests

1. Friction Stir Welding of similar and dissimilar metallic alloys.
2. FSW of polymeric Materials
3. Development of FSW tools for high softening temperature materials
4. Development of nanocomposites using FSP and PM.
5. Design and Manufacturing of FSW machines.
6. Solid State Additive Manufacturing of metallic materials
7. High Entropy Alloys
8. Self-healing materials
9. Hydrogen storage materials
10. Alloys development

Experience

30-12-2014 - 29-12-2019 - Associate Professor - Suez University
26-01-2020 - until now - Professor - Prince Sattam bin Abdulaziz University
30-12-2019 - until now - Professor - Suez University
01-09-2005 - 28-9-2009 - PhD Researcher - The University of Sheffield UK
01-09-1999 - 30-09-2009 - Assistant Lecturer - Suez University
01-09-2016 - 25-01-2020 - Associate Professor - The British University in Egypt
01-10-2009 - 29-12-2014 - Assistant Professor - Suez University

Responsibilities

At Suez University : Laboratory Coordinator 2010-2016 Teaching Undergraduate and Postgraduate Courses Supervising more than 30 Master and PhD students Publishing more than 20 articles in high-impact factor International Scientific Journals Reviewer for more than 10 international Journal Implementing a number of funded projects as principal investigator and Co_principal Investigator Founder of the Friction stir welding Center at Suez University Co-Founder of The Suez and Sinai Metallurgical and Materials Engineering Center of Research Excellence
At The British University in Egypt: Mechanical Engineering Program Director 2017-2020 Laboratory Coordinator 2016-2020 Teaching Undergraduate and Postgraduate Courses Supervising Master's and PhD students Publishing more than 15 articles in high-impact factor International Scientific Journals Reviewer for more than 15 international Journal
At Prince Sattam bin Abdulaziz University : Member of the Applied Diploma Committee 1444 H Member of the University Board for postgraduate studies 1442-1443 H Member of the College of Engineering graduation project Committee 1443-1444 H Coordinator of the Postgraduate Programs development committee 1443-1444 H Teaching number of courses for undergraduate students (Introduction of Materials Engineering and Manufacturing Processes) Supervising a number of graduation projects Publishing more than 50 articles in high-impact factor journals Supervising a number of master's and Ph.D. students.

Publications

PEER REVIEWED JOURNAL PUBLICATIONS:
1. M. I. A. Habba and M. M. Z. Ahmed, “Friction stir welding-based technologies: A comprehensive review from the sustainable manufacturing perspectives,” J. Mater. Res. Technol., vol. 38, no. June, pp. 1–29, 2025, doi: 10.1016/j.jmrt.2025.07.184.
2. A. I. Alateyah, M. M. Z. Ahmed, M. M. E. S. Seleman, S. Elkatatny, M. Alturki, A. Nassef, M. S. El-Asfoury, A. Bakkar, Y. Zedan, and W. H. El-Garaihy, “Characterization of microstructure, crystallographic texture, corrosion behavior and mechanical properties of severely deformed AA7075 alloy,” Results Eng., vol. 25, no. October 2024, p. 103749, 2025, doi: 10.1016/j.rineng.2024.103749.
3. A. M. Fahim, T. Mikó, M. Z. Ahmed, and Z. Gácsi, “Effect of cold compaction pressure and sintering temperature on the densification and microstructure of 316L stainless steel powder,” Results Eng., vol. 27, no. May, 2025, doi: 10.1016/j.rineng.2025.106030.
4. M. I. A. Habba and M. M. Z. Ahmed, “Friction Stir Welding of Dissimilar Aluminum and Copper Alloys: A Review of Strategies for Enhancing Joint Quality,” J. Adv. Join. Process., p. 100293, Feb. 2025, doi: 10.1016/j.jajp.2025.100293.
5. Ouis, A., Habba, M.I.A., Ahmed, M.M.Z. et al. Tribological and corrosion behavior of Al2O3 interlayer reinforced friction stir welded AA6082-T6 joints. Sci Rep 15, 22437 (2025). https://doi.org/10.1038/s41598-025-03977-7
6. Essa, A.R., Aboud, A.R., Ahmed, M.M. et al. Friction stir welding of aluminum alloy 6082-T6 using eccentric shoulder tools to eliminate the need for tool tilting. Sci Rep 15, 8801 (2025). https://doi.org/10.1038/s41598-025-91065-1
7. B. Alzahrani, A. Abd El-Aty, Y. Xu, Y. Hou, S. H. Zhang, A. Ali, M. M. Z. Ahmed, and A. Shokry, “Constitutive Analysis of the Deformation Behavior of Al-Mg-Si Alloy Under Various Forming Conditions Using Several Modeling Approaches,” Materials (Basel)., vol. 18, no. 5, 2025, doi: 10.3390/ma18051121.
8. El-Sayed Seleman, M.M.; Ataya, S.; Alrasheedi, N.H.; Ahmed, M.M.Z.; Reyad, H.A.; Bakkar, A.; Fouad, R.A. Optimization of Critical Parameters in Friction Stir Spot Welding of AA5052 Aluminum Alloy Using Response Surface Methodology. Crystals 2025, 15, 571. https://doi.org/10.3390/cryst15060571
9. Alzahrani, B.; Ahmed, M.M.Z.; Habba, M.I.A.; Fouad, R.A.; Elshaghoul, Y.G.Y.; Gadallah, E.A. TIG Welding of EN AW-6082 Al Alloy: A Comparative Analysis of Filler Rods on Microstructural and Mechanical Performance. J. Manuf. Mater. Process. 2025, 9, 21. https://doi.org/10.3390/jmmp9010021
10. R. Khajeh, M. Javidani, M. Mofarrehi, X.-G. Chen, M. Ahmed, A. Farzaneh, and A. Heidarzadeh, “Enhancing microstructure and mechanical properties of laser powder bed fusion-fabricated AlSi10Mg alloy through tailored friction stir processing and post-heat treatment,” Mater. Sci. Eng. A, vol. 889, p. 145855, 2024, doi: https://doi.org/10.1016/j.msea.2023.145855.
11. W. H. El‑Garaihy, A. I. Alateyah, M. M. Z. Ahmed, M. S. El‑Asfoury, M. O. Alawad, A. BaQais, Y. Zedan, and H. G. Salem9, “Improving In‑Vitro Corrosion and Degradation Performance of Mg–Zn–Ca Alloy for Biomedical Applications by Equal Channel Angular Pressing,” Met. Mater. Int., vol. 1599, 2024, doi: https://doi.org/10.1007/s12540-023-01599-01.
12. A. I. Alateyah, A. BaQais, M. M. Z. Ahmed, Y. Zedan, M. O. Alawad, M. S. El-Asfoury, and W. H. El-Garaihy, “Improved corrosion resistance and mechanical properties of severely deformed ZM31 alloy,” Heliyon, vol. 10, no. 4, p. e26400, 2024, https://doi:10.1016/j.heliyon.2024.e26400.
13. A. R. S. Essa, R. I. A. Eldersy, M. M. Z. Ahmed, A. Abd El-Aty, A. Alamry, B. Alzahrani, A. E. El-Nikhaily, and M. I. A. Habba, “Modeling and Experimental Investigation of the Impact of the Hemispherical Tool on Heat Generation and Tensile Properties of Dissimilar Friction Stir Welded AA5083 and AA7075 Al Alloys,” Materials (Basel)., vol. 17, no. 2, 2024, https://doi:10.3390/ma17020433.
14. M. Ragab, H. Liu, H. A. Abdel-Aleem, M. M. E.-S. Seleman, M. M. Z. Ahmed, and G. Mehboob, “Numerical and experimental study of underwater friction stir welding of 1Cr11Ni2W2MoV heat-resistant stainless steel,” J. Mater. Res. Technol., vol. 29, no. December 2022, pp. 130–148, 2024, https://doi:10.1016/j.jmrt.2024.01.100.
15. H. Hemdan, E. Fahhar, E. A. Gadallah, M. I. A. Habba, M. M. El, S. Seleman, M. M. Z. Ahmed, A. Y. Mohamed, and R. A. Fouad, “Effect of post ‑ weld heat ‑ treatment and solid ‑ state thermomechanical treatment on the properties of the AA6082 MIG welded joints,” Sci. Rep., pp. 1–15, 2024, https://doi:10.1038/s41598-024-53795-6.
16. Ahmed, M.M.Z.; El-Sayed Seleman, M.M.; Fydrych, D.; Çam, G. Friction Stir Welding of Aluminum in the Aerospace Industry: The Current Progress and State-of-the-Art Review. Materials 2023, 16, 2971. https://doi.org/10.3390/ma16082971
17. Ahmed, M.M.Z.; El-Sayed Seleman, M.M.; Sobih, A.M.E.-S.; Bakkar, A.; Albaijan, I.; Touileb, K.; Abd El-Aty, A. Friction Stir-Spot Welding of AA5052-H32 Alloy Sheets: Effects of Dwell Time on Mechanical Properties and Microstructural Evolution. Materials 2023, 16, 2818. https://doi.org/10.3390/ma16072818
18. Tonelli, L., Ahmed, M.M.Z. & Ceschini, L. A novel heat treatment of the additively manufactured Co28Cr6Mo biomedical alloy and its effects on hardness, microstructure and sliding wear behavior. Prog Addit Manuf 8, 313–329 (2023). https://doi.org/10.1007/s40964-022-00334-2
19. Ahmed, M.M.Z.; El-Sayed Seleman, M.M.; Albaijan, I.; Abd El-Aty, A. Microstructure, Texture, and Mechanical Properties of Friction Stir Spot-Welded AA5052-H32: Influence of Tool Rotation Rate. Materials 2023, 16, 3423. https://doi.org/10.3390/ma16093423
20. Alsaleh, N.A.; El-Sayed Seleman, M.M.; Hassan, A.M.M.; Ahmed, M.M.Z.; Ataya, S.; Latief, F.H.; Abdul-Latif, A.; Habba, M.I.A. Additively Manufactured Parts from AA2011-T6 Large-Diameter Feedstocks Using Friction Stir Deposition. Materials 2023, 16, 4904. https://doi.org/10.3390/ma16144904
21. Alsaleh, N.A.; Ataya, S.; Latief, F.H.; Ahmed, M.M.Z.; Ataya, A.; Abdul-Latif, A. LCF and HCF of Short Carbon Fibers Reinforced AE42 Mg Alloy. Materials 2023, 16, 3686. https://doi.org/10.3390/ma16103686
22. Habba, M.I.A.; Alsaleh, N.A.; Badran, T.E.; El-Sayed Seleman, M.M.; Ataya, S.; El-Nikhaily, A.E.; Abdul-Latif, A.; Ahmed, M.M.Z. Comparative Study of FSW, MIG, and TIG Welding of AA5083-H111 Based on the Evaluation of Welded Joints and Economic Aspect. Materials 2023, 16, 5124. https://doi.org/10.3390/ma16145124
23. Abd El-Aty, A.; Ha, S.; Xu, Y.; Hou, Y.; Zhang, S.-H.; Alzahrani, B.; Ali, A.; Ahmed, M.M.Z. Coupling Computational Homogenization with Crystal Plasticity Modelling for Predicting the Warm Deformation Behaviour of AA2060-T8 Al-Li Alloy. Materials 2023, 16, 4069. https://doi.org/10.3390/ma16114069
24. Essa, A.R.S.; Ahmed, M.M.Z.; Aboud, A.R.K.; Alyamani, R.; Sebaey, T.A. Prediction of Tool Eccentricity Effects on the Mechanical Properties of Friction Stir Welded AA5754-H24 Aluminum Alloy Using ANN Model. Materials 2023, 16, 3777. https://doi.org/10.3390/ma16103777
25. Aly, H.A.; El-Sayed Seleman, M.M.; Bakkar, A.; Albaijan, I.; Ahmed, M.M.Z.; Ibrahim, K.M. Effect of Si Content on the Thermal Expansion of Ti15Mo(0–2 Si) Biomaterial Alloys during Different Heating Rates. Materials 2023, 16, 4768. https://doi.org/10.3390/ma16134768
26. Alrasheedi, N.H.; Ataya, S.; El-Sayed Seleman, M.M.; Ahmed, M.M.Z. Tensile Deformation and Fracture of Unreinforced AZ91 and Reinforced AZ91-C at Temperatures up to 300 °C. Materials 2023, 16, 4785. https://doi.org/10.3390/ma16134785
27. Au-Yeung, H.L.; Ataya, S.; Hassanin, H.; El-Sayed, M.A.; Ahmadein, M.; Alsaleh, N.A.; Ahmed, M.M.Z.; Essa, K. Non-Destructive Disassembly of Interference Fit under Wear Conditions for Sustainable Remanufacturing. Machines 2023, 11, 538. https://doi.org/10.3390/machines11050538
28. Abena, A.; Ataya, S.; Hassanin, H.; El-Sayed, M.A.; Ahmadein, M.; Alsaleh, N.A.; Ahmed, M.M.Z.; Essa, K. Hybrid Finite Element–Smoothed Particle Hydrodynamics Modelling for Optimizing Cutting Parameters in CFRP Composites. Polymers 2023, 15, 2789. https://doi.org/10.3390/polym15132789
29. Hassanin, H.; El-Sayed, M.A.; Ahmadein, M.; Alsaleh, N.A.; Ataya, S.; Ahmed, M.M.Z.; Essa, K. Optimising Surface Roughness and Density in Titanium Fabrication via Laser Powder Bed Fusion. Micromachines 2023, 14, 1642. https://doi.org/10.3390/mi14081642
30. Ashraf Bakkar,Mohamed M. El-Sayed Seleman, Mohamed M. Zaky Ahmed, Saeed Harb, Sami Goren ORCID logo a and Eskander Howsawia, (2023) Recovery of vanadium and nickel from heavy oil fly ash (HOFA): a critical review, RSC Advances, https://doi.org/10.1039/D3RA00289F
31. Alateyah, A. I., El-Shenawy, M., Nassef, A., El-Hadek, M., Ahmed, M. M. Z., Kouta, H., El-Garaihy, W. H. (2023). Optimizing the ECAP processing parameters of pure cu through experimental, finite element, and response surface approaches. Reviews on Advanced Materials Science, 62(1) doi: https://doi.org/10.1515/rams-2022-0297
32. Heidarzadeh, A., Khajeh, R., Jabraeili, R., Jafarian, H. R., Ahmed, M., Park, N., & Lee, U. (2023). Overcoming the strength-ductility trade-off in additive manufactured AlSi10Mg plates by friction stir welding at a low rotational speed. Journal of Materials Research and Technology, 24, 1897-1909. doi: https://doi.org/10.1016/j.jmrt.2023.03.109
33. Akbar Heidarzadeh, Roghayeh Mohammadzadeh, Mohamed Ahmed, Yutao Pei, Correlation between local mechanical properties and corresponding microstructures in a friction stir processed Monel alloy, Journal of Materials Research and Technology, Volume 24,2023, Pages 5139-5146,ISSN 2238-7854, https://doi.org/10.1016/j.jmrt.2023.04.123.
34. Ahmed, M.M.Z.; Essa, A.R.S.; Ataya, S.; El-Sayed Seleman, M.M.; El-Aty, A.A.; Alzahrani, B.; Touileb, K.; Bakkar, A.; Ponnore, J.J.; Mohamed, A.Y.A. Friction Stir Welding of AA5754-H24: Impact of Tool Pin Eccentricity and Welding Speed on Grain Structure, Crystallographic Texture, and Mechanical Properties. Materials 2023, 16, 2031. doi: https://doi.org/10.3390/ma16052031
35. Abena, A.; Soo, S.L.; Ataya, S.; Hassanin, H.; El-Sayed, M.A.; Ahmadein, M.; Alsaleh, N.A.; Ahmed, M.M.Z.; Essa, K. Chip Formation and Orthogonal Cutting Optimisation of Unidirectional Carbon Fibre Composites. Polymers 2023, 15, 1897. doi: https://doi.org/10.3390/polym15081897
36. Mohamed M.Z. Ahmed, Mohamed M. El-Sayed Seleman, Rana G. Eid, M.F. Zawrah, Production of AA1050/silica fume composite by bobbin tool-friction stir processing: Microstructure, composition and mechanical properties, CIRP Journal of Manufacturing Science and Technology, 38 (2022) 801–812. https://doi.org/10.1016/j.cirpj.2022.07.002
37. Ahmed, M.M.Z.; El-Sayed Seleman, M.M.; Ahmed, E.; Reyad, H.A.; Alsaleh, N.A.; Albaijan, I. A Novel Friction Stir Deposition Technique to Refill Keyhole of Friction Stir Spot Welded AA6082-T6 Dissimilar Joints of Different Sheet Thicknesses. Materials 2022, 15, 6799. https://doi.org/10.3390/ma15196799
38. Albaijan, I.; Ahmed, M.M.Z.; El-Sayed Seleman, M.M.; Touileb, K.; Habba, M.I.A.; Fouad, R.A. Optimization of Bobbin Tool Friction Stir Processing Parameters of AA1050 Using Response Surface Methodology. Materials 2022, 15, 6886. https://doi.org/10.3390/ma15196886
39. Touileb, K.; Hedhibi, A.C.; Djoudjou, R.; Ouis, A.; Bensalama, A.; Ibrahim, A.; Abdo, H.S.; Ahmed, M.M.Z. Mechanical, Microstructure, and Corrosion Characterization of Dissimilar Austenitic 316L and Duplex 2205 Stainless-Steel ATIG Welded Joints. Materials 2022, 15, 2470. https://doi.org/10.3390/ma15072470
40. Ahmed, M.M.Z.; Touileb, K.; El-Sayed Seleman, M.M.; Albaijan, I.; Habba, M.I.A. Bobbin Tool Friction Stir Welding of Aluminum: Parameters Optimization Using Taguchi Experimental Design. Materials 2022, 15, 2771. https://doi.org/10.3390/ma15082771
41. Ahmed, M.M.Z.; El-Sayed Seleman, M.M.; Touileb, K.; Albaijan, I.; Habba, M.I.A. Microstructure, Crystallographic Texture, and Mechanical Properties of Friction Stir Welded Mild Steel for Shipbuilding Applications. Materials 2022, 15, 2905. https://doi.org/10.3390/ma15082905
42. El-Sayed Seleman, M.M.; Ataya, S.; Ahmed, M.M.Z.; Hassan, A.M.M.; Latief, F.H.; Hajlaoui, K.; El-Nikhaily, A.E.; Habba, M.I.A. The Additive Manufacturing of Aluminum Matrix Nano Al2O3 Composites Produced via Friction Stir Deposition Using Different Initial Material Conditions. Materials 2022, 15, 2926. https://doi.org/10.3390/ma15082926
43. Ahmed, M.M.Z.; El-Sayed Seleman, M.M.; Ahmed, E.; Reyad, H.A.; Touileb, K.; Albaijan, I. Friction Stir Spot Welding of Different Thickness Sheets of Aluminum Alloy AA6082-T6. Materials 2022, 15, 2971. https://doi.org/10.3390/ma15092971
44. Ahmed, M.M.Z.; El-Sayed Seleman, M.M.; Eid, R.G.; Albaijan, I.; Touileb, K. The Influence of Tool Pin Geometry and Speed on the Mechanical Properties of the Bobbin Tool Friction Stir Processed AA1050. Materials 2022, 15, 4684. https://doi.org/10.3390/ma15134684
45. Ataya, S.; El-Sayed Seleman, M.M.; Latief, F.H.; Ahmed, M.M.Z.; Hajlaoui, K.; Soliman, A.M.; Alsaleh, N.A.; Habba, M.I.A. Wear Characteristics of Mg Alloy AZ91 Reinforced with Oriented Short Carbon Fibers. Materials 2022, 15, 4841. https://doi.org/10.3390/ma15144841
46. Ataya, S.; El-Sayed Seleman, M.M.; Latief, F.H.; Ahmed, M.M.Z.; Hajlaoui, K.; Elshaghoul, Y.G.Y.; Habba, M.I.A. Microstructure and Mechanical Properties of AZ91 Rein-Forced with High Volume Fraction of Oriented Short Carbon Fibers. Materials 2022, 15, 4818. https://doi.org/10.3390/ma15144818
47. Ali S Hammad, Mohamed MZ Ahmed, Hong Lu, Adel B El-Shabasy, Bandar Alzahrani, Mohamed M El-Sayed Seleman, Yongquan Zhang, A El Megharbel "An investigation on mechanical and microstructural evolution of stationary shoulder friction stir welded aluminum alloy AA7075-T651" Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science,2022, https://doi.org/10.1177/09544062211070716
48. MMES Seleman, MMZ Ahmed, RM Ramadan, BA Zaki” Effect of FSW Parameters on The Microstructure and Mechanical Properties of T-joints between Dissimilar Al-Alloys” International Journal of Integrated Engineering 14 (1),2022, 1-12, https://doi.org/10.30880/ijie.2022.14.01.001
49. A.I. Alateyah, Mohamed M.Z. Ahmed, Majed O. Alawad, Sally Elkatatny, Yasser Zedan, Ahmed Nassef, W.H. El-Garaihy, Effect of ECAP die angle on the strain homogeneity, microstructural evolution, crystallographic texture and mechanical properties of pure magnesium: numerical simulation and experimental approach, Journal of Materials Research and Technology,Volume 17,2022,Pages 1491-1511. https://doi.org/10.1016/j.jmrt.2022.01.088.
50. Ataya, S.; Ahmed, M.M.Z.; El-Sayed Seleman, M.M.; Hajlaoui, K.; Latief, F.H.; Soliman, A.M.; Elshaghoul, Y.G.Y.; Habba, M.I.A. Effective Range of FSSW Parameters for High Load-Carrying Capacity of Dissimilar Steel A283M-C/Brass CuZn40 Joints. Materials 2022, 15, 1394. doi: 10.3390/ma15041394
51. Tamimi, K.M.; Bayoumi, D.A.; Ahmed, M.M.Z.; Albaijan, I.; El-Sayed, M.E. The Effect of Salinized Nano ZrO2 Particles on the Microstructure, Hardness, and Wear Behavior of Acrylic Denture Tooth Nanocomposite. Polymers 2022, 14, 302. doi: 10.3390/polym14020302
52. Faiad, A.; Alsmari, M.; Ahmed, M.M.Z.; Bouazizi, M.L.; Alzahrani, B.; Alrobei, H. Date Palm Tree Waste Recycling: Treatment and Processing for Potential Engineering Applications. Sustainability 2022, 14, 1134. doi: 10.3390/su14031134
53. Alzahrani, B.; El-Sayed Seleman, M.M.; Ahmed, M.M.Z.; Elfishawy, E.; Ahmed, A.M.Z.; Touileb, K.; Jouini, N.; Habba, M.I.A. The Applicability of Die Cast A356 Alloy to Additive Friction Stir Deposition at Various Feeding Speeds. Materials 2021, 14, 6018. doi: 10.3390/ma14206018
54. Ahmed, M.M.Z.; Hajlaoui, K.; El-Sayed Seleman, M.M.; Elkady, M.F.; Ataya, S.; Latief, F.H.; Habba, M.I.A. Microstructure and Mechanical Properties of Friction Stir Welded 2205 Duplex Stainless Steel Butt Joints. Materials 2021, 14, 6640. doi: 10.3390/ma14216640
55. Ahmed, M.M.Z.; El-Sayed Seleman, M.M.; Elfishawy, E.; Alzahrani, B.; Touileb, K.; Habba, M.I.A. The Effect of Temper Condition and Feeding Speed on the Additive Manufacturing of AA2011 Parts Using Friction Stir Deposition. Materials 2021, 14, 6396. doi: 10.3390/ma14216396
56. Hedhibi, A.C.; Touileb, K.; Djoudjou, R.; Ouis, A.; Alrobei, H.; Ahmed, M.M.Z. Mechanical Properties and Microstructure of TIG and ATIG Welded 316L Austenitic Stainless Steel with Multi-Components Flux Optimization Using Mixing Design Method and Particle Swarm Optimization (PSO). Materials 2021, 14, 7139. doi: 10.3390/ma14237139
57. Ahmed MMZ, Habba MIA, El-Sayed Seleman MM, Hajlaoui K, Ataya S, Latief FH, EL-Nikhaily AE. Bobbin Tool Friction Stir Welding of Aluminum Thick Lap Joints: Effect of Process Parameters on Temperature Distribution and Joints’ Properties. Materials. 2021; 14(16):4585. https://doi.org/10.3390/ma14164585
58. Ahmed MMZ, Alzahrani B, Jouini N, Hessien MM, Ataya S. The Role of Orientation and Temperature on the Mechanical Properties of a 20 Years Old Wind Turbine Blade GFR Composite. Polymers. 2021; 13(7):1144. https://doi.org/10.3390/polym13071144
59. Ahmed MMZ, Abdelazem KA, El-Sayed Seleman MM, Alzahrani B, Touileb K, Jouini N, El-Batanony IG, Abd El-Aziz HM. Friction Stir Welding of 2205 Duplex Stainless Steel: Feasibility of Butt Joint Groove Filling in Comparison to Gas Tungsten Arc Welding. Materials. 2021; 14(16):4597. https://doi.org/10.3390/ma14164597
60. Ragab M, Liu H, Yang G-J, Ahmed MMZ. Friction Stir Welding of 1Cr11Ni2W2MoV Martensitic Stainless Steel: Numerical Simulation Based on Coupled Eulerian Lagrangian Approach Supported with Experimental Work. Applied Sciences. 2021; 11(7):3049. https://doi.org/10.3390/app11073049
61. Fouad DM, El-Garaihy WH, Ahmed MMZ, Albaijan I, Seleman MME-S, Salem HG. Grain Structure Evolution and Mechanical Properties of Multi-Channel Spiral Twist Extruded AA5083. Metals. 2021; 11(8):1276. https://doi.org/10.3390/met11081276
62. El-Shenawy, M.; Ahmed, M.M.Z.; Nassef, A.; El-Hadek, M.; Alzahrani, B.; Zedan, Y.; El-Garaihy, W.H. Effect of ECAP on the Plastic Strain Homogeneity, Microstructural Evolution, Crystallographic Texture and Mechanical Properties of AA2xxx Aluminum Alloy. Metals 2021, 11, 938. https://doi.org/10.3390/met11060938
63. Alateyah AI, Ahmed MMZ, Zedan Y, El-Hafez HA, Alawad MO, El-Garaihy WH. Experimental and Numerical Investigation of the ECAP Processed Copper: Microstructural Evolution, Crystallographic Texture and Hardness Homogeneity. Metals. 2021; 11(4):607. https://doi.org/10.3390/met11040607
64. Ahmed, M.M.Z.; Jouini, N.; Alzahrani, B.; Seleman, M.M.E.-S.; Jhaheen, M. Dissimilar Friction Stir Welding of AA2024 and AISI 1018: Microstructure and Mechanical Properties. Metals 2021, 11, 330. https://doi.org/10.3390/met11020330
65. Ahmed, M.M.Z.; Habba, M.I.A.; Jouini, N.; Alzahrani, B.; Seleman, M.M.E.-S.; El-Nikhaily, A. Bobbin Tool Friction Stir Welding of Aluminum Using Different Tool Pin Geometries: Mathematical Models for the Heat Generation. Metals 2021, 11, 438. https://doi.org/10.3390/met11030438
66. Ahmed, M.M.Z.; Barakat, W.S.; Y. A. Mohamed, A.; A. Alsaleh, N.; Elkady, O.A. The Development of WC-Based Composite Tools for Friction Stir Welding of High-Softening-Temperature Materials. Metals 2021, 11, 285. https://doi.org/10.3390/met11020285
67. Ahmed, M.M.Z.; Ataya, S.; El-Sayed Seleman, M.M.; Mahdy, A.M.A.; Alsaleh, N.A.; Ahmed, E. Heat Input and Mechanical Properties Investigation of Friction Stir Welded AA5083/AA5754 and AA5083/AA7020. Metals 2021, 11, 68. doi: 10.3390/met11010068
68. Ahmed, M.M.Z.; El-Sayed Seleman, M.M.; Zidan, Z.A.; Ramadan, R.M.; Ataya, S.; Alsaleh, N.A. Microstructure and Mechanical Properties of Dissimilar Friction Stir Welded AA2024-T4/AA7075-T6 T-Butt Joints. Metals 2021, 11, 128. doi: 10.3390/met11010128
69. Ahmed, M.M.Z.; Ataya, S.; Seleman, M. .-S.; Allam, T.; Alsaleh, N.A.; Ahmed, E. Grain Structure, Crystallographic Texture, and Hardening Behavior of Dissimilar Friction Stir Welded AA5083-O and AA5754-H14. Metals 2021, 11, 181. doi: 10.3390/met11020181
70. Elashmawy, M., Ahmed, M.M.Z., 2020. Enhancing tubular solar still productivity using composite aluminum/ copper/sand sensible energy storage tubes. Solar Energy Materials & Solar Cells. doi.org/10.1016/j.solmat.2020.110882
71. Elashmawy, M., Alhadri, M., Ahmed, M.M.Z., 2020. Enhancing tubular solar still performance using novel PCM-tubes. Desalination, 19 December 2020, 114880.
https://doi.org/10.1016/j.desal.2020.114880
72. Alshammari, F., Elashmawy, M., Ahmed, M.M.Z., 2020. Cleaner production of freshwater using multi-effect tubular solar still. Journal of Cleaner Production, 281 (2021) 125301.
doi.org/10.1016/j.jclepro.2020.125301
73. Mohammed Gamil, Mohamed M. Z. Ahmed "Investigating the Thermo‑Mechanical Properties of Aluminum/Graphene Nano‑Platelets Composites Developed by Friction Stir Processing" (May 2020) International Journal of Precision Engineering and Manufacturing, https://doi.org/10.1007/s12541-020-00355-3
74. M.M.Z. Ahmed, Mohamed M. El-Sayed Seleman, Mostafa Shazly, Moataz M. Attallah, and Essam Ahmed “Microstructural Development and Mechanical Propertiesof Friction Stir Welded Ferritic Stainless Steel AISI 409” (2019). Journal of Materials Engineering and Performance. https://doi.org/10.1007/s11665-019-04365-9
75. L Tonelli, A Morri, S Toschi, M Shaaban, HR Ammar, MMZ Ahmed , “Effect of FSP parameters and tool geometry on microstructure, hardness, and wear properties of AA7075 with and without reinforcing B4C ceramic particles” (2019) The International Journal of Advanced Manufacturing Technology, 1-17.https://doi.org/10.1007/s00170-019-03442-6
76. M.M.Z. Ahmed, B.P. Wynne, W.M. Rainforth, Adrian Addison, Jonathan Martin, Philip Threadgill “Effect of tool geometry and heat input on the hardness, grain structure and crystallographic texture of thick section friction stir welded aluminium”(2019) Metallurgical and Materials Transactions AVolume50A, January 2019—271: DOI: 10.1007/s11661-018-4996-2
77. EM Zayed, NSM El-Tayeb, MMZ Ahmed, RM Rashad “Development and Characterization of AA5083 Reinforced with SiC and Al2O3 Particles by Friction Stir Processing” (2019), Engineering Design Applications, 11-26,Advanced Structured Materials vol92. Springer, pp 11-26.DOI:https://doi.org/10.1007/978-3-319-79005-3_2
78. Ashraf Bakkar, Mohamed M.Z. Ahmed, Naser A. Alsaleh, Mohamed M. El-Sayed Seleman , Sabbah Ataya (2019) Microstructure, wear, and corrosion characterization of high TiC content Inconel 625 matrix composites. Journal of Materials Research and Technology, Volume 8, Issue 1, January–March 2019, Pages 1102-1110.https://doi.org/10.1016/j.jmrt.2018.09.001
79. D.M. Fouad, W.H. El-Garaihy, M.M.Z. Ahmed, M.M. El-Sayed Seleman, H.G. Salem (2018) Influence of multi-channel spiral twist extrusion (MCSTE) processing on structural evolution, crystallographic texture and mechanical properties of AA1100.Materials Science & Engineering A, Vol 737, PP. 166–175. https://doi.org/10.1016/j.msea.2018.09.039
80. M.M.Z. Ahmed, B.P. Wynne, W.M. Rainforth, Jonathan Martin (2018) Crystallographic Texture Investigation of Thick Section Friction Stir Welded AA6082 and AA5083 Using EBSD. Key Engineering Materials, ISSN: 1662-9795, Vol. 786, pp 44-51. doi:10.4028/www.scientific.net/KEM.
81. El-Sayed Seleman M, Ahmed M.M.Z., Ataya S (2018), Microstructure and mechanical properties of hot extruded 6016 aluminum alloy/graphite composites, Journal of Materials Science and Technology. Volume 34, Issue 9, September 2018, Pages 1580-1591.https://doi.org/10.1016/j.jmst.2018.03.004
82. Reham Reda, Mohamed Saad, Mohamed Zaky Ahmed,HodaAbd-Elkader, (2018) "Monitoring joint quality: Taguchi approach and structure investigation", Journal of Engineering, Design andTechnology, Vol. 16 Issue: 2, pp.211-232,https://doi.org/10.1108/JEDT-10-2017-0108
83. M.M.Z. Ahmed, SabbahAtaya, M.M. El-Sayed Seleman, H.R. Ammar, Essam Ahmed “Friction stir welding of similar and dissimilar AA7075 and AA5083” Journal of Materials Processing Technology, Volume 242, April 2017, Pages 77–91.
http://dx.doi.org/10.1016/j.jmatprotec.2016.11.024.
84. Saad Khodir, M.M.Z. Ahmed, Shaymaa Mohamed, Essam Ahmed, HamedAbdelaleem, “Effect of Intermetallic Compound Phases on the Mechanical Properties of the DissimilarAl/Cu Friction Stir Welded Joints” Journal of Materials Engineering and Performance, Volume 25, Issue 11, 1 November 2016, Pages 4637-4648, 2016.DOI 10.1007/s11665-016-2314-y
85. M. Refat, Ali Alashri, S. Toschi ,M.M.Z. Ahmed, Al. Morri, I. El-Mahallawie, L. Ceschini “Microstructure, hardness and impact toughness of heat treated surface-nanodispersed and friction stir processed aluminium alloy AA7075”Journal of Materials Engineering and Performance, Volume 25, Issue 11, 1 November 2016, Pages 5087-5101, 2016DOI 10.1007/s11665-016-2346-3
86. W. Hoziefa , S. Toschi , M.M.Z. Ahmed, Al. Morri , A. A. Mahdy, M.M. El-Sayed Seleman, I. El-Mahallawie, L. Ceschini ,A. Atlam "Influence of Friction Stir Processing on the Microstructure and Mechanical Properties of a compocast AA2024-Al2O3nanocomposite" Materials and Design, Volume 106, 15 September 2016, Pages 273–284.http://dx.doi.Org/10.1016/j.matdes.2016.05.114
87. M.M.Z. Ahmed, B.P.Wynne, M. M. El-Sayed Seleman, W.M. Rainforth "A comparison of crystallographic texture and grain structure development in aluminium generated by friction stir welding and high strain torsion" Materials and Design 103C(2016) pp. 259-167.http://dx.doi.org/10.1016/j.matdes.2016.04.056
88. M.M.Z. Ahmed, Essam Ahmed, A.S. Hamada, S.A. Khodir, M. M. El-Sayed Seleman, B.P. Wynne" Microstructure and mechanical properties evolution of friction stir spot weldedhigh-Mn twinning-induced plasticity steel" Materials and Design 91(2016) 378-387. http://dx.doi.org/10.1016/j.matdes.2015.12.001
89. A.R.Sh. Essa, M.M.Z. Ahmed, A.Y.A. Mohamed, and A.E. El-Nikhaily "An analytical model of heat generation for eccentric cylindrical pin in friction stir welding" Journal of Materials Research and Technology, Jan. 2016 doi:10.1016/j.jmrt.2015.11.009
90. A.S.Hamada, A. Järvenpää, M.M.Z. Ahmed, M. Jaskari, B.P. Wynne, D.A.Porter, L.P. Karjalainen "Microstructural Evolution of Friction-Stir-Welded AA6082-T6 Aluminum Alloy during Cyclic Deformation" Materials Science and Engineering A 642 (2015) 366–376. http://dx.doi.org/10.1016/j.msea.2015.06.100
91. M. M. Z. Ahmed, B. P. Wynne and J. P. Martin,(2013) "Effect of friction stir welding speed on mechanical properties and microstructure of nickel based super alloy Inconel 718"Science and Technology of Welding and Joining, Vol 18 No 8 P. 680. DOI 10.1179/1362171813Y.0000000156
92. S. Ataya, M.M.Z. Ahmed (2013)"Damages of Wind Turbine Blade Trailing Edge: Forms, Location, and Root," Engineering Failure Analysis. Vol 35, P. 480-488. DOI:http://dx.doi.org/10.1016/j.engfailanal.2013.05.011
93. M.M.Z. Ahmed, B.P. Wynne, W.M. Rainforth, P.L. Threadgill "Microstructure, crystallographic texture and mechanical properties of friction stir welded AA2017A"Materials Characterization 64(2012) 107-117, doi:10.1016/j.matchar.2011.12.00
94. M.M.Z. Ahmed, B.P. Wynne, W.M. Rainforth, P.L. Threadgill “Through thickness crystallographic texture of stationary shoulder friction welded aluminium” ScriptaMaterialia Vol. 64, (2011) 45-48.( doi:10.1016/j.scriptamat.2010.08.060
95. M.M.Z. Ahmed, B.P. Wynne, W.M. Rainforth, P.L. Threadgill “Quantifying crystallographic texture in the probe-dominated region of thick-section friction-stir-welded aluminium” ScriptaMaterialia Vol. 59, 5, (2008) 507-510.(doi:10.1016/j.scriptamat.2008.04.047).
96. P L Threadgill, M. M Z Ahmed, J P Martin, B P Wynne “The Use Of Bobbin Tools For Friction Stir Welding Of Aluminium Alloys” Materials Science Forum Vols 635-642(2010) PP1179-1184.http://www.scientific.net/MSF.638-642.1179
97. Wael Hozeifa, Amir Mahdy, M.M.Z. Ahmed, I. Elmahalawi, A. Atlam, "Manufacturing of AA2024 Composite reinforced with alumina nanoparticles using Semisolid Casting" International Journal of Scientific and Engineering Research 6(12) · January 2016.
98. A.R.Sh. Essa, M.M.Z. Ahmed, A.Y.A. Mohamed, and A.E. El-Nikhaily "Effect of tool pin eccentricity on mechanical properties and microstructure of friction stir welded 5754 aluminum alloy" (2015) PORT-SAID ENGINEERING RESEARCH JOURNAL, vol. (19), No. (1)
99. A.R.Sh. Essa, M.M.Z. Ahmed, A.Y.A. Mohamed, and A.E. El-Nikhaily,Prediction of tool pin eccentricity effects on the mechanical properties of friction stir welded AA5754-H24 aluminum alloy using artificial neural network" (2015) Faculty of Engineering- Mataria, Engineering Research Journal, vol. (146)
100. Ahmed E. Hannora, M.M.Z. Ahmed "Surface Mechanical Attrition Treatment of Commercially Pure Titanium Using Ball Milling Attritor" Faculty of Petroleum and Mining Eng. Journal 21, (2014) 34-41.
101. Shimaa Mahmoud Aly, Ashraf T. Bakkar, M.M.Z. Ahmed, Mohamed A. Abd El-Hady "Improving the High Temperature Corrosion Resistance Of Ni- base Super-Alloys by Diffusional Coating" Faculty of Petroleum and Mining Eng. Journal 21, (2014) 62-69.
102. Eyd M. ELSayed , A.Y.A Mohamed , M.M.Z. Ahmed , A. EL-Nikhaily" Effect of friction stir processing on the mechanical properties and microstructure of cast aluminium (Al-Si-Zn-Cu) Alloy" Engineering research journal(137 March 2013)M79-M93.
103. El-Sayed I. Abdel Aziz, M.M.Z. Ahmed, I. Elmahalawi, M.M. Al-Aiat "Effects of Process Parameters on the Microstructure and Hardness of 7020/Al2O3 Composite Layer Fabricated by FSP" International Journal of Scientific & Engineering Research, Volume 6, Issue 6, June-2015.
104. Sabbah Ataya, M.M.Z. Ahmed, Essam Ahmed "An investigation of damages in low power wind turbine blades" Journal of Petroleum and Mining Engineering 16 (2) (2013) 57-66

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Official government website of the Government of the Kingdom of Saudi Arabia

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Prof.Mohamed Mohamed Zaky Ahmed

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