Semnan University Press Mechanics of Advanced Composite Structures 2423-4826 12 1 2025 04 01 Effect of Ceramic Boron Carbide Particles Addition on the Mechanical and Microstructural Characteristics of Al7020 Alloy Composites 169 180 8930 10.22075/macs.2024.33857.1655 EN Shrishail Basappa Angadi Department of Mechanical Engineering, KLE Technological University, Dr. M. S. Sheshgiri College of Engineering & Technology, Belagavi, 590008, Karnataka, India 0000-0001-9973-0510 Santosh Kumar Department of Industrial and Production Engineering, The National Institute of Engineering, Mysuru, 570008, Karnataka, India 0000-0002-6129-4466 Madeva Nagaral Aircraft Research and Design Centre, Hindustan Aeronautics Limited, Bangalore, 560037, Karnataka, India 0000-0002-8248-7603 Virupaxi Auradi Department of Mechanical Engineering, Siddaganga Institute of Technology, Tumkur, 572103, Karnataka, India 0000-0001-6549-6340 Balaraj Valukula Department of Mechanical Engineering, Rao Bahadur Y. Mahabaleshwarappa Engineering College, Ballari, 583104, Karnataka, India Journal Article 2024 04 21 The aerospace and automotive engineering industries are seeing a growing need for materials that are both lightweight and very durable. This increased demand has prompted the development of innovative metal matrix composites based on aluminum. The current study aimed at developing and characterization Al7020 metal matrix composites by reinforcing micro boron carbide particles, Al7020/B<sub>4</sub>C MMCs are fabricated by stir casting method by varying the boron carbide particles in wt.% (0, 2, 4, 6, and 8wt. %). Lastly, the prepared samples were subjected to tensile, compression, hardness, and fracture toughness tests to evaluate the impact of B<sub>4</sub>C particles on density, mechanical, and microstructural parameters. By incorporating B4C particles into the Al7020 alloy, the experimental results demonstrated that metal matrix composites exhibited enhanced ultimate tensile strength, yield strength, hardness, and compression strength. In addition, the lowest density, highest toughness, and superior micrograph were observed in Al7020/B<sub>4</sub>C MMCs with 8 wt. % reinforcement of B<sub>4</sub>C particles with a minor decrease in elongation.  Metal matrix composites Microstructure Tensile properties Fracture Strength https://macs.semnan.ac.ir/article_8930_5a38a1eb24d99699159da10e71c45577.pdf