Microstructure Atlas of P22 Steel

This book highlights the qualitative and quantitative sequential changes in microstructure of P22 steel under various stress and temperature conditions. The P22 alloy is an established material used under elevated temperature and stress for the components of thermal power plants. Temperature and stress levels for laboratory experimentation have been selected based on the true operating condition of a boiler. This book describes both continuous as well as interrupted tests that were performed under given parameters. Subsequently, the microstructures, bulk hardness and NDE parameters (magnetic and non-linear ultrasonic) have been evaluated. For reliable data, the microstructures have been observed at different regions of creep exposed samples by different characterization techniques. This has been further followed by drawing correlation between specific features like precipitate size variation with creep strain / creep time and so on. Given the contents, this book will be a useful reference for researchers and professionals working in the area of materials especially in thermal power plants.

Dr. Rajat K. Roy is currently positioned as a Principal Scientist at CSIR-National Metallurgical Laboratory, Jamshedpur (India). After completing his Bachelor of Engineering and Master of Engineering in Metallurgy from Bengal Engineering College, Shibpur, Howrah (India), he obtained his Ph.D. degree in Metallurgical and Materials Engineering from Indian Institute of Technology, Kharagpur (India). His research areas are compositional design and development of nanostructured and amorphous materials through rapid solidification, metal joining (brazing), characterization of ferritic steels by electromagnetic NDE. He has authorships of 54 papers in SCI journals, 12 patents, 3 copyrights and 2 book chapters. Dr. Roy has exposures on the development of nanomaterials in Carnegie Mellon University, Pittsburgh (USA) under BOYSCAST fellowship and Korea University, Seoul (Republic of Korea) under BK21 program.Mr. Anil Kumar Das is working as General Manager at NTPC Energy Technology Research Alliance (NETRA), the R&D wing of NTPC Limited (India). He is heading NETRA Scientific Services Division which includes areas in Non-destructive Evaluation (NDE), Metallurgy & Failure Analysis, Creep & Fatigue, Corrosion, Water Chemistry, Coal Combustion, Ash Management, Transformer Oil Analysis etc. He has done his B. Tech and M. Tech both from I.I.T. Kanpur (India). He has more than 28 years of experience in health and life assessment of power plant components. He was awarded National NDT Award in 2011 for Excellence in Application of NDE in Industries. He has filed 4 patents and 3 number of copyrights. He is life member of ISNT and member of ASNT. He is associated with more than 50 publications of reports and technical papers. His major work areas are advanced inspection and analysis tools for power plant components. Dr. Avijit Kumar Metya has been working at CSIR- NML, Jamshedpur (India) as Principal Scientist. He obtained his B.E. (Mechanical) from Jalpaiguri Government Engineering College, West-Bengal (India); M.Tech in Materials Engineering from BESU, Shibpur (Currently IIEST, Shibpur) Shibpur, Howrah (India) and PhD from Indian Institute of Technology Madras, Chennai (India). His major research interests include Ultrasonic NDE, acoustic wave propagation through materials, mechanical behaviour of materials. He has published 16 papers in International Journals. Dr. Metya received NDT Young Scientist/ Engineer Award in 2011 from Indian Society for Nondestructive Testing. Dr. Avijit Mondal is currently working as Senior Manager at NETRA, India. He obtained his B.E and M. Tech from Jadavpur University, Kolkata (India) and Ph.D. from the Indian Institute of Technology, Kanpur (India). His major research area includes structure properties correlation, advanced NDE methods for condition assessment, failure analysis of power plant components etc. Before joining NTPC, he was working as visiting Research Scholar at the Pennsylvania State University, USA. He was awarded Shun