Dr. Hasan Algül is an Associate Professor in the Department of Metallurgical and Materials Engineering at Sakarya University, Türkiye. His research focuses on surface engineering, coating technologies, corrosion protection, tribology, advanced functional materials, and energy storage systems. His work involves the development, characterization, and performance evaluation of electroless, electrodeposited, and composite coatings with enhanced mechanical, tribological, and corrosion-resistant properties. He has extensive experience in materials characterization, electrochemical testing, and surface modification techniques, including corrosion and wear analysis of metallic and nanocomposite coating systems. Dr. Algül has actively participated in numerous national and international research projects and has authored a substantial number of peer-reviewed publications. His current research interests include multifunctional coatings, nanocomposite surface treatments, corrosion-resistant materials, lithium-ion battery materials, sustainable battery recycling technologies, and the recovery of critical raw materials within circular economy frameworks.