This book compiles 41 research papers that were presented at the 9th International Seminar on Advances in Materials Science and Engineering (ISAMSE 2024) held on July 12-14, 2024 in Kaifeng, Henan, China. A wide range of research results in modern materials science from structural metals, green chemistry, environmental engineering and building materials to functional materials, protective coatings, corrosion and materials for micro- and optoelectronics are reflected in this collection. This book is a valuable resource for engineers and researchers seeking to understand and improve material performance in various environments and applications.