Rajnesh Tyagi is currently an Associate Professor in the Department of Mechanical Engineering at the Indian Institute of Technology (Banaras Hindu University) IIT (BHU) India. He obtained his Bachelor’s Degree in Mechanical Engineering in 1992, and his Ph.D. in 2001 from Indian Institute of Technology Roorkee. Dr. Tyagi also worked as a Postdoctoral Researcher at Department of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing PR China from Dec 2008 to Sept 2010. His research interests include Materials Development and Tribology, Composite materials and High Temperature wear and Solid Lubrication, Surface Engineering etc. Recently, he is diversifying in Wear Protective coatings and texturing, Nano-tribology etc. He is a life member of Tribology Society of India and reviewer to various international journals like Wear, Tribology International and Tribology Letters, to name a few.J. Paulo Davim (https://orcid.org/0000-0002-5659-3111) received his Ph.D. degree in Mechanical Engineering in 1997, M.Sc. degree in Mechanical Engineering (materials and manufacturing processes) in 1991, Mechanical Engineering degree (5 years) in 1986, from the University of Porto (FEUP), the Aggregate title (Full Habilitation) from the University of Coimbra in 2005 and the D.Sc. from London Metropolitan University in 2013. He is Senior Chartered Engineer by the Portuguese Institution of Engineers with an MBA and Specialist title in Engineering and Industrial Management. He is also Eur Ing by FEANI-Brussels and Fellow (FIET) by IET-London. Currently, he is Professor at the Department of Mechanical Engineering of the University of Aveiro, Portugal. He has more than 30 years of teaching and research experience in Manufacturing, Materials, Mechanical and Industrial Engineering, with special emphasis in Machining & Tribology. He also has an interest in Management, Engineering Education and Higher Education for Sustainability. He has guided large numbers of postdoc, Ph.D. and master’s students, as well as has coordinated and participated in several financed research projects. He has received several scientific awards. He has worked as evaluator of projects for ERC-European Research Council and other international research agencies as well as examiner of Ph.D. thesis for many universities in different countries. He is the Editor in Chief of several international journals, Guest Editor of journals, books Editor, book Series Editor and Scientific Advisor for many international journals and conferences. Presently, he is an Editorial Board member of 30 international journals and acts as reviewer for more than 100 prestigious Web of Science journals. In addition, he has also published as editor (and co-editor) more than 120 books and as author (and co-author) more than 10 books, 80 book chapters and 400 articles in journals and conferences (more than 250 articles in journals indexed in Web of Science core collection/h-index 52+/9000+ citations, SCOPUS/h-index 57+/11000+ citations, Google Scholar/h-index 73+/17000+). [Editor]
