Zobrazeno 1 - 10
of 211
pro vyhledávání: '"Mohamed M. Z. Ahmed"'
Autor:
Hossam Hemdan El-Fahhar, Elshafey Ahmed Gadallah, Mohamed I. A. Habba, Mohamed M. El-Sayed Seleman, Mohamed M. Z. Ahmed, Abdelkarim Yousif Mohamed, Ramy A. Fouad
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-15 (2024)
Abstract Post-weld heat treatment (PWHT) and solid-state thermomechanical treatment (TMT) via friction stir processing (FSP) have been shown to enhance the mechanical properties of aluminum alloys. The current work investigates the effects of PWHT an
Externí odkaz:
https://doaj.org/article/9b9add67016f4e5abdc1666b0b1cc954
Autor:
Elshafey Ahmed Gadallah, Hossam Hemdan El-Fahhar, Mohamed M Z Ahmed, Mohamed M El-Sayed Seleman, Bandar Alzahrani, Ali Alamry, Ali Abd El-Aty, Eman El-Shrief
Publikováno v:
Materials Research Express, Vol 11, Iss 7, p 076504 (2024)
The Parallel Tubular Channel Angular Pressing Process (PTCAP) has emerged as a promising method for refining the grain structure and enhancing the mechanical properties of metallic materials through severe plastic deformation. This study focuses on a
Externí odkaz:
https://doaj.org/article/13da77ce7a5d4dc4adabad45691a7b61
Autor:
Ali S Hammad, Hong Lu, Mohamed M El-Sayed Seleman, Mohamed M Z Ahmed, Ali Alamry, Jun Zhang, He Huang, Bandar Alzahrani, Guangao Yang, Ali Abd El-Aty, Ibrahim S EL-Deeb
Publikováno v:
Materials Research Express, Vol 11, Iss 5, p 056506 (2024)
This study investigates the friction stir welding (FSW) of aluminum alloy 7075-T651, mainly focusing on managing heat generation during the process. The critical parameters influencing heat amount and the material flow including FSW tool shoulder dia
Externí odkaz:
https://doaj.org/article/0b5c78bf84ee415989a0a1e2d216aa15
Autor:
Mahmoud S. I. Ahmed, Mohamed M. Z. Ahmed, Hussein M. Abd El-Aziz, Mohamed I. A. Habba, Ashraf F. Ismael, Mohamed M. El-Sayed Seleman, Ali Abd El-Aty, Ali Alamry, Bandar Alzahrani, Kamel Touileb, Wael M. Fathy
Publikováno v:
Crystals, Vol 13, Iss 11, p 1559 (2023)
The aim of this study is to investigate friction stir welding (FSW) to join A304 austenitic stainless steel and low carbon steel A283 Gr. C in-lap configuration to clad the carbon steel with highly corrosion-resistant stainless steel. Thus, a wide ra
Externí odkaz:
https://doaj.org/article/e583742ecc0c4460a75a73250c8bb0bf
Autor:
Mohamed M. El-Sayed Seleman, Sabbah Ataya, Hayam A. Aly, Barun Haldar, Naser A. Alsaleh, Mohamed M. Z. Ahmed, Ashraf Bakkar, Khaled M. Ibrahim
Publikováno v:
Metals, Vol 13, Iss 11, p 1861 (2023)
The durability of a metallic biomaterial to withstand weight loss is a key factor in determining its service life and performance. Therefore, it is essential to create biomaterials with high wear resistance to ensure the biomaterial has a long servic
Externí odkaz:
https://doaj.org/article/91e8de86a09447068bcd6256c546ccf4
Publikováno v:
Crystals, Vol 13, Iss 10, p 1463 (2023)
This study evaluates two multiscale models to determine their ability to describe the effect of grain size (GS) on the plastic behavior of ultrafine-grained (UFG) and nanocrystalline (NC) materials. One model follows the Hall–Petch type (Model-1),
Externí odkaz:
https://doaj.org/article/aef4645dcdef4048974a082ff523246c
Publikováno v:
Crystals, Vol 13, Iss 10, p 1469 (2023)
AZ91 is one of the most broadly used Mg alloys because of its good castability and reasonable mechanical properties. Strengthening AZ91 with carbon short fibers aims to increase tensile and fatigue strength, creep, and wear resistance. One of the pro
Externí odkaz:
https://doaj.org/article/38f33c74433b40c49eab0ff7c4f4e7d2
Autor:
Yousef G. Y. Elshaghoul, Mohamed M. El-Sayed Seleman, Ashraf Bakkar, Sarah A. Elnekhaily, Ibrahim Albaijan, Mohamed M. Z. Ahmed, Abdou Abdel-Samad, Reham Reda
Publikováno v:
Applied Sciences, Vol 13, Iss 18, p 10255 (2023)
In the aircraft industry, the high-strength aluminum alloys AA7075 and AA2024 are extensively used for the manufacture of structural parts like stringers and skins, respectively. Additive manufacturing (AM) of the AA7075-T6 aluminum alloy via frictio
Externí odkaz:
https://doaj.org/article/9345346081d5413a99587cb3f6477bac
Autor:
Kamel Touileb, Rachid Djoudjou, Abousoufiane Ouis, Abdeljlil Chihaoui Hedhibi, Sahbi Boubaker, Mohamed M. Z. Ahmed
Publikováno v:
Crystals, Vol 13, Iss 9, p 1377 (2023)
316L stainless steel joined to mild steel is widespread in several applications to reach a requested good association of mechanical properties at a lower cost. The activating tungsten inert gas (ATIG) weld was carried out using a modified flux compos
Externí odkaz:
https://doaj.org/article/c2ac61fa755243fc868bbbe0425da2e5
Autor:
Hany Hassanin, Mahmoud Ahmed El-Sayed, Mahmoud Ahmadein, Naser A. Alsaleh, Sabbah Ataya, Mohamed M. Z. Ahmed, Khamis Essa
Publikováno v:
Micromachines, Vol 14, Iss 8, p 1642 (2023)
The Ti6Al4V alloy has many advantages, such as being lightweight, formal, and resistant to corrosion. This makes it highly desirable for various applications, especially in the aerospace industry. Laser Powder Bed Fusion (LPBF) is a technique that al
Externí odkaz:
https://doaj.org/article/dcfbf1fc3617411bb3c1cbb077a04336