International Journal of Science and Technology (IJST)

Development of Lightweight Metal Matrix Composites (MMCs) for Automotive Applications A Comprehensive Review

MMC have been in the spotlight of the automotive business since they offer exceptional mechanical properties and allow achieving important objectives: weight reduction, fuel efficiency, and emission reduction/control. This review summarises contemporary research advances concerning the production and manufacture, assessment, and use of lightweight MMC, especially with aluminium, magnesium, and titanium matrices. Processing methods, including stir casting, powder metallurgy and additive manufacturing, are discussed and progress to enhance mixing and interfacial adhesion is emphasized. Reinforcement methods consist of ceramic particulates such as Sic and Al2O3 as well as nano reinforcements like carbon nano tubes. The change in micro-structure and its consequence on mechanical and tribological characteristics of tensile strength, hardness and wear resistance are critically examined. Challenges pertaining to the scalability of the manufacturing process and the cost of the materials used and recycling of the MMC components are mentioned with sustainable solutions proposed. Lastly, new research avenues along with the emerging tendencies which include hybrid reinforcements, smart composites, and additive manufacturing are provided to facilitate the further development of the presented topic.