The premier reference for welding metallurgy, completely revised and expanded Since its initial publication in 1987, Welding Metallurgy has been the standard text for the instruction of welding in technical schools and as a reference for professional welders. Updating the existing material and adding a substantial amount of new content, the Second Edition expands the scope of the first and remains the benchmark resource in its field. Metallurgical phenomena are explained with the help of illustrations that integrate the phase diagram, thermal cycle, kinetics, microstructure, and physical properties. More exercise problems are provided in the Second Edition, and a Solutions Manual is available upon request. Examples of updated features include: ? Much sharper photomicrographs and line drawings ? Updated heat–source efficiency and melting efficiency ? Updated and expanded chemical reactions in welding ? Turbulence (now included in weld pool convection), flow visualization, and arc–plasma dragging ? Solute redistribution and microsegregation have been expanded and the solidification path added ? Solidification modes are explained with more illustrations ? Ferrite formation mechanisms, new ferrite prediction methods, the effect of cooling rate, and factors affecting the austenite–ferrite transformation ? Six different liquation mechanisms in the partially melted zone, the direction and modes of grain boundary (GB) solidification, and the resultant GB segregation Practitioners, researchers, and students will find Welding Metallurgy, Second Edition to be an invaluable, one–stop resource on the science of welding.