Fabio Giudice is associate professor of Metallurgy at the Department of Civil Engineering and Architecture of the University of Catania. Former assistant professor of Metallurgy at the same institution, he has been associate researcher in Industrial Design, Mechanical Engineering, and Metallurgy at the Department of Industrial Engineering of the University of Catania, and previously in Mechanical Design and Construction of Machines at the Department of Industrial and Mechanical Engineering of the same University. He graduated in Mechanical Engineering at the University of Catania, obtained a master's in Design and Bionics at the Research Centre of the European Institute of Design in Milano, and a PhD in Structural Mechanics at the University of Catania. His research interests include the mechanical behaviour and microstructural characterization of metallic materials, optimal materials selection, metallurgy of processes based on mobile thermal sources (laser welding, metal additive manufacturing by electron beam melting), life cycle design and design for X, and product design for the environment.

Prof. Severino Missori is an associate professor at the Department of Mechanical Engineering at the University of Rome ‘Tor Vergata’ for the ING-IND/21 disciplinary group. From 2001-2002 to the present, he has been teaching Metallurgy on the Mechanical Engineering degree programme. His research interests include the welding of metallic materials with traditional and innovative processes, metallurgy of welding, mechanics of fractures, special steels, and light alloys.

Dr. Cristina Scolaro is a postdoctoral researcher at the Engineering Department of the University of Messina. She is a graduate in physics, and she obtained both a PhD in Physics and a PhD in Engineering and Chemistry of Materials and Constructions. She has been an assistant teacher of Polymeric Materials of the Bachelor's Degree course in Industrial Engineering pertaining to SSD ING-IND/22 since 2019. She has been professor of Mathematics and Science for Secondary Education at the Ministry of Education and Merit (MIM) since 2021. Her research interests include nanocomposites, metals, aging, tribological behavior, biopolymer blends, thread, roughness, mechanical characterization, rheological properties, wear tests, and wettability.

Since 1998, Andrea Sili has served at the University of Messina, first as an associate professor and since 2004 as a full professor of Metallurgy. At the University of Rome “La Sapienza”, he graduated in Chemical Engineering (1981) and in Mechanical Engineering (1984) and obtained the qualification to practice the profession of engineering (1982). He served at the University of Rome—Tor Vergata, Department of Mechanical Engineering, as a university researcher, and was the winner of a free competition for the Metallurgy group. His research interests include the field of metallurgical technologies, welding techniques, welded joint metallurgy, and physical metallurgy.