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Dr. Mohamed Ahmed Afifi

Assistant Professor

Faculty Building

UB2

Office Number

S12-C

Biography

Dr. Mohamed Afifi is a faculty member of the Mechanical Engineering program and SESC research centre, specializing in metallurgy, thermomechanical processing, and the characterization of metallic materials. With a distinguished career that includes a pivotal role at Brunel University London, focusing on developing light-weight high strength metallic materials for the automotive sector, and a PhD from the Beijing Institute of Technology. Dr. Afifi's work adeptly bridges the gap between academic research and industrial application, evidenced by his numerous contributions to leading journals in materials science.

Recent Publications

Enhancing mechanical properties of Al-Zn-Mg-Cu alloys: The impact of high strain rate compression and subsequent heat treatment on microstructural evolution

This study presents a comprehensive examination of the Al-Zn-Mg-Cu alloy, focusing on the effects of high strain rate dynamic compression and heat treatment on its performance. The research aimed to understand the underlying microstructural mechanisms contributing to the enhanced mechanical properties of the alloy, which is critical for applications in aerospace and automotive industries. High

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Characterization and properties of high-entropy alloys materials

High-entropy alloys (HEAs) are a relatively new class of materials that have been attracting significant attention in material science and engineering research. This chapter provides an introductory discourse on the microstructural characterization and properties of these fascinating materials. The term “HEAs” refers to an innovative concept of metallic materials composed of multiple principal

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Concept, phase selection rule, challenges, and future prospective of high-entropy alloys

High-entropy alloys (HEAs) have emerged as a promising class of materials that exhibit exceptional mechanical properties, corrosion resistance, and high-temperature stability. They have become a significant area of research in the materials science domain owing to their potential for a wide range of applications. This chapter provides an overview of the concept, phase selection rules, the

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Investigating the Microstructural Impact of Tensile Stretching on Al-Zn-Mg-Cu Alloys: Dislocation-Precipitate Interactions

The study investigates the effects of tensile stretching on the microstructural evolution and mechanical properties of a high Zn-content Al-Zn-Mg-Cu alloy, emphasizing dislocation dynamics and precipitate behavior. The alloy, with a composition of Al-9.01 Zn-2.45 Cu-2.25 Mg-0.13 Zr (wt.%), prepared through casting subjected to peak-aged (T6) at 743 K for 1 h followed by 393 K for 24 h. Tensile

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Research Tracks
  • Thermomechanical Processing of Alloys.
  • Characterization of Metallic Materials.
  • Development of Lightweight, High-Strength Metallic Materials
  • Material Behaviour under Severe Deformation.
Projects
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Research Project

Introducing Strain Rate as a Manufacturing Parameter

Objective/Contributions: To improve the strength of the 7xxx Aluminum alloys for automotive applications. To provide a fundamental understanding of the strengthening mechanisms of Aluminum alloys and to understand Precipitates-dislocation interaction after the deformation process under different strain rates. To bridge the gap between fundamental research and industrial applications. Outcome
122
Research Project

Advanced Meta Material with Different Poisson’s Ratio

Objective/Contributions: Finite element analysis using Ansys or MATLAB with different Meta Material structures. Apply additive manufacturing techniques to produce the newly designed material. Apply manufactured material in real-life applications like Robotic arm materials.
888
Research Project

High-Entropy Alloy Development

Abstract We reported the creation of novel high-entropy alloys, characterized by its lightweight nature and good mechanical properties, this is through compositional design and thermomechanical treatment marking a significant advancement for the automotive and aerospace industries. Partners University of Science and Technology Beijing, Oak Rideg National Laboratories
1000
Research Project

Developing high strength Al-Zn-Mg alloys by thermomechanical treatments

Abstract For the first time, the formation and impact of (Al, Zn)3Zr precipitates in Al-Zn-Mg-Cu alloys post-heat treatment was detailed, offering new insights into mechanical property enhancement through these discoveries. In addition, research introduces grain boundary deposition engineering as a novel method to develop aluminium alloys with specific precipitate types and mechanical properties