This book presents the latest research advancements in the field of material science, specifically in mechanical, manufacturing, and plant engineering. It includes peer reviewed articles from the 11th International Conference on Mechanical, Manufacturing and Plant Engineering (ICMMPE 2025) held on 24–25 September 2025 at Bali, Indonesia. The conference showcases cutting-edge research and facilitates knowledge exchange among experts in the field of material science, mechanical engineering and their applications.