Surface engineering is a branch of materials science that focuses on manipulating the surface of solid materials to improve their performance, durability, and functionality. This can involve modifying the surface composition, structure, or properties through processes such as coating, plating, heat treatment, or surface modification techniques. Surface engineering is commonly used in industries such as automotive, aerospace, electronics, and biomedical to enhance the surface properties of materials and extend their service life. It plays a crucial role in improving the wear resistance, corrosion resistance, adhesion, hardness, and friction properties of materials, ultimately leading to improved performance and reliability in various applications.