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Introduction to the physical metallurgy of welding
1 online resource (270 pages) : illustrations
Introduction to the Physical Metallurgy of Welding deals primarily with the welding of steels, which reflects the larger volume of literature on this material; however, many of the principles discussed can also be applied to other alloys. The book is divided into four chapters, in which the middle two deal with the microstructure and properties of the welded joint, such as the weld metal and the heat-affected zone. The first chapter is designed to provide a wider introduction to the many process variables of fusion welding, particularly those that may influence microstructure and properties, w.
1. Fusion Welding -- Process Variables. Fusion welding. The weld thermal cycle. Residual stresses in welds -- 2. The Weld Metal. Characteristics of weld solidification. Thermal gradients and turbulence in the melt. Geometry of the weld melt. Epitaxial solidification. Crystal growth and segregation. Cellular and dendritic solidification in welds. Dendritic growth in single crystal welds of stainless steel. Refining weld structures. Phase transformations during cooling of the weld metal. Modelling the microstructure and properties of weld metals. Weld metal toughness -- 3. The Heat-Affected Zone. The base material. The heating cycle. Grain growth. Practical considerations of grain growth and grain growth control in the HAZ. Reactions at the fusion line. Transformations during cooling. The heat-affected zone microstructure of oxide-dispersed steels. Predicting the microstructure and properties of the HAZ. Multi-run welds. PC software for weldability prediction.
4. Cracking and Fracture in Welds. Fracture toughness. Solidification cracking. Liquation cracking. Lamellar tearing. Cold cracking. Reheat cracking. Case study: The Alexander Kielland disaster -- Appendix: Weld cracking tests and weldability formulae.
Master and use copy. Digital master created according to Benchmark for Faithful Digital Reproductions of Monographs and Serials, Version 1. Digital Library Federation, December 2002. http://purl.oclc.org/DLF/benchrepro0212 MiAaHDL
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Includes bibliographical references and index.
Oxford ; Boston : Butterworth Heinemann, 1992