Chapter 2 lays the foundation for understanding deformation and strengthening mechanisms in metals and alloys. Chapters 3, 4, and 5 each focus on strengthening behavior and mechanisms of specific precipitates, ?′, ?″, and Ni2(Cr,Mo), respectively. Chapter 6 discusses the strengthening effects of the ? and ? phases, which form at intermediate temperatures and play a crucial role in controlling grain size, enhancing creep, and fatigue resistance. Chapter 7 examines the role of other strengthening agents, including oxides, borides, and carbides that improve high-temperature strength by impeding dislocation motion and grain boundary sliding.
Table of Contents
1. Fundamentals of Superalloys2. Principles of Deformation and Strengthening
3. ?′ Phase Precipitate
4. ?″ Phase Precipitate
5. ?′′′ Phase Precipitate
6. ? and ? Phase Precipitates
7. Non-Deformable Particles
Appendix A. Nominal Compositions of Superalloys
Appendix B. Mechanical Properties of Superalloys
Appendix C. The Thompson Tetrahedron
Authors
Jung Bahadur Singh Head, Glass and Advanced Materials Division, Bhabha Atomic Research Centre, Mumbai, India; Senior Professor, Homi Bhabha National Institute, Mumbai, India.Dr. Jung Bahadur Singh, Head of the Structure of Materials Section in the Mechanical Metallurgy Division at Bhabha Atomic Research Centre (BARC), Mumbai, is a renowned expert in nickel-based superalloys. With over 30 years of experience in phase transformation, deformation behavior, and structure-property correlations of superalloys and advanced intermetallic alloys, he has made significant contributions to the field.
Dr. Singh joined BARC in 1991 after completing an advanced course in Nuclear Engineering, specializing in Metallurgy. He earned his B.Tech. in Metallurgical Engineering from the Indian Institute of Technology (IIT), Kanpur, in 1990 and obtained a Ph.D. from IIT Bombay in 2002. As a Professor of Engineering Sciences at Homi Bhabha National Institute (HBNI), Mumbai, he has mentored many Ph.D. students.
He has been a visiting scientist at prestigious institutions, including CEMES, Toulouse (France); the University of Illinois at Urbana-Champaign (USA); Helmholtz-Zentrum Berlin (Germany); and Institut Laue Langevin (ILL), Grenoble (France). Dr. Singh holds two patents and has published around 100 research papers and reports. His recent book, Alloy 625 - Microstructure, Properties, and Performance (Springer), further underscores his expertise in the field.
