Dr. İsmail ESEN2026-06-082026-06-08https://dspace.academy.edu.ly/handle/123456789/2208They make the composite stronger, alter how fast it corrodes, and change how magnesium alloys dampen sound [7]. Rare earth-magnesium alloys keep the benefits of being light, having very high specific stiffness and strength, shielding and damping better from electromagnetic waves, and being easy to recycle [4]. REE can also be utilized to replace costly rare earth metals in magnesium alloys, which lowers production costs while keeping performance high [8]. Adding REE to a matrix 16 magnesium alloy may change the order in which the metals are mixed, which means that further research is. needed to understand how the metals get stronger [9]. Adding rare earth metals as cerium [6] to magnesium alloys can modify their.Magnesium is an important substance; for many things since it is a light metal; with a very high strength-to-weight ratio. But pure magnesium isn't very strong and . doesn't hold up well against corrosion. Magnesium alloys are widely utilized; to get around these problems, and rare earth elements (REEs) are often added to improve their mechanical properties [1]. Biomedical applications, are one of the main uses for magnesium alloys with REEs. Researchers are working on magnesium alloys that can be used as implants that break down over time. Adding REEs makes them. less likely to corrode and more likely to passivate, which makes the attack less severe in corrosive settings [2]. Also, rare earth elements make the oxide layer that forms on the outside of magnesium alloys during corrosion more permanent and thicker [3]. Magnesium alloys containing rare REEs are recognized for their thermal endurance and mechanical properties at elevated temperatures [4]. Adding REE, including gadolinium and other heavy REE, makes magnesium alloys much more resistant to creep at high temperatures [5]. REE also make magnesium alloys stronger by making solid solutions. and refining grains, which improves their microstructure and mechanical properties [6]. Alloying can improve the mechanical properties of magnesium alloys, such as how easily they can be shaped, how strong they are, and how well they resist corrosion. REE are quite important for this improvement.WEAR AND CORROSION