Dr. Manvandra Kumar Singh is currently an Assistant Professor at the Department of Mechanical Engineering, Amity School of Engineering and Technology, Amity University Madhya Pradesh, India. He obtained his B.Tech. in Mechanical Engineering from Uttar Pradesh Technical University (U.P.T.U.) Lucknow, India, in 2009. He completed his M.Tech. in Materials Science & Technology from Indian Institute of Technology (Banaras Hindu University) Varanasi, India, in 2011. He received his Ph.D. in Mechanical Engineering (Design) from Indian Institute of Technology (Banaras Hindu University) Varanasi, India, in 2018. Major areas of his research-interest include study of development and design of metal matrix composite and hybrid composite materials and its microstructural, physical, mechanical and tribological behaviors including its applications. He has published more than 25 papers in reputed journals, book chapter and conference proceedings. Dr. Singh is life member of “Tribology Societyof India (TSI)” affiliated to International Tribology Council, U.K. Senior member of Indian Society of Mechanical Engineers (ISME) and Associate member of “The Indian Institute of Metals (IIM)”. Currently, he is an editorial board member of the International Journal of Teknika: Jurnal Sains dan Teknologi”, “Composite Materials Research” and “Metallic Material Research”. Dr. Rakesh Kumar Gautam is currently an Associate Professor at the Department of Mechanical Engineering, Indian Institute of Technology (Banaras Hindu University) Varanasi, India. He received his B.E. from Madan Mohan Malviya Engineering College, Gorakhpur (1999), M.Tech. from Institute of Technology (2001) presently Indian Institute of Technology (BHU) Varanasi and Ph.D. degree from Indian Institute of Technology, Roorkee (2009). His major areas of research interest includes copper-based in-situ and hybrid composite, processing of light alloy base composites and nano- composite, microwave sintered composite, tribological, mechanical and physical properties of cast in-situ composites, self-healing materials, bio-tribology, air jet erosion. Dr. Rakesh Kumar Gautam has published more than 50 articles in international journals, conference proceedings and a book chapter. He has guided more than 20 M.Tech and 05 Ph.D students. Currently, he is a reviewer/editorial board member of the International Journal of Tribology-Transaction, ASME, Journal of Materials Science, Springer, Journal of Tribology Transactions, STLE, Taylor and Francis, Journal of Engineering Tribology Proceedings of the Institution of Mechanical Engineers (IMechE), Part J: Journal of Engineering Tribology, Tribology - Materials, Surfaces & Interfaces.