Dr. Sanjeev Kumar is currently working as a researcher in the Institute of Materials Science and Technology in Technical University Wien, Austria. He obtained his M.Tech and a Ph.D. degree in welding metallurgy from the Department of Metallurgical and Materials Engineering, Indian Institute of Technology Roorkee, India. He obtained B.Tech degree in Mechanical Engineering from AKGEC GZB, UPTU Lucknow Uttar Pradesh India in 2009. His primary research interest is in physical simulation studies for fusion welding and other heat treatment processes for different grade of steels such as stainless steel, micro alloyed, high strength steel, low carbon alloyed steel, and hyper duplex steels, etc. since 2010. He is worked as a postdoc researcher in the Institute of Materials Science, Forming and Joining, in TU Graz Austria for 1 year. He is worked on several projects for industrial organizations in India as well as in abroad. He has experienced in different characterization processes of steel by using SEM, EBSD, EPMA, TEM, and XRD analysis, etc. Dr. Sanjeev Kumar has published 28 papers in reputed international journals, conferences and book chapters.