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This book gathers a collection of papers summarizing some of the latest developments in the thermomechanical processing of steels. The replacement of conventional rolling plus post-rolling heat treatments by integrated controlled forming and cooling strategies implies important reductions in energy consumption, increases in productivity and more compact facilities in the steel industry. The metallurgical challenges that this integration implies, though, are relevant and impressive developments that have been achieved over the last 40 years. The frequency of the development of new steel grades and processing technologies devoted to thermomechanically processed products is increasing, and their implementation is being expended to higher value added products and applications. In addition to the metallurgical peculiarities and relationships between chemical composition, process and final properties, the relevance impact of advanced characterization techniques and innovative modelling strategies provides new tools to achieve the further deployment of the TMCP technologies. The contents of the book cover low carbon microalloyed grades, ferritic stainless steels and Fe–Al–Cr alloys, medium-Mn steels, and medium carbon grades. Authors of the chapters of this "Thermomechanical Processing of Steels" book represent some of the most relevant research groups from both the steel industry and academia.
Research & information: general --- low carbon steel --- prior austenite grain boundary --- carbon segregation --- Bs temperature --- ferritic stainless steel --- plastic deformation --- dynamic strain-induced transformation --- intercritical rolling --- microalloying --- microstructure --- EBSD --- high-aluminum steel --- second phase --- phase transition --- thermodynamic calculation --- ferritic heat resistant stainless steel --- hot tensile deformation --- tensile property --- dynamic recrystallization --- flow behavior --- high Ti steels --- Nb microalloying --- recrystallization kinetics --- strain-induced precipitation --- rheological law modeling --- rolling --- microstructural and mechanical coupling --- defect reduction --- advanced high-strength steels (AHSS) --- medium-Mn steel --- phase equilibrium --- niobium-titanium microalloyed steel --- electrical resistivity --- atom probe tomography --- scanning electron microscopy --- low-carbon steel --- microalloyed --- hot torsion testing --- prior austenite --- polygonal ferrite --- bainite --- vanadium microalloying --- austenite stability --- HEXRD --- EELS --- low carbon steel --- prior austenite grain boundary --- carbon segregation --- Bs temperature --- ferritic stainless steel --- plastic deformation --- dynamic strain-induced transformation --- intercritical rolling --- microalloying --- microstructure --- EBSD --- high-aluminum steel --- second phase --- phase transition --- thermodynamic calculation --- ferritic heat resistant stainless steel --- hot tensile deformation --- tensile property --- dynamic recrystallization --- flow behavior --- high Ti steels --- Nb microalloying --- recrystallization kinetics --- strain-induced precipitation --- rheological law modeling --- rolling --- microstructural and mechanical coupling --- defect reduction --- advanced high-strength steels (AHSS) --- medium-Mn steel --- phase equilibrium --- niobium-titanium microalloyed steel --- electrical resistivity --- atom probe tomography --- scanning electron microscopy --- low-carbon steel --- microalloyed --- hot torsion testing --- prior austenite --- polygonal ferrite --- bainite --- vanadium microalloying --- austenite stability --- HEXRD --- EELS
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Welding remains one of the most studied manufacturing processes worldwide. It has always assumed a vital importance in terms of research, and the market demand for increasingly complex solutions has kept the search for new solutions around welding more and more alive. This book describes, in 14 chapters, recent investigations around various welding processes, showing new developments in important areas, such as biomedicine or the automotive industry. Following the current trend, several developments around the friction stir welding process are also described. However, other processes are also studied, and new interesting developments are presented. Problems normally felt in welding, such as the installation of internal stresses or the generation of defects are also studied, and very interesting solutions are provided. Thus, this book is of particular importance for a very wide audience, ranging from the technician who is curious to want to know more and more, to the professor who seeks the latest developments in the matter to prepare his classes.
History of engineering & technology --- spot welding --- hot-stamped hardened steel --- microstructure --- martensite --- bainite --- friction stir welding --- aluminium alloys --- forced air cooling --- microstructures --- tensile strength --- hardness distribution --- ferritic stainless steel --- cerium --- solidification crack --- Trans-varestraint test --- beryllium-copper alloy --- mechanical properties --- post-weld heat treatment --- high-power ultrasonic welding --- interface --- magnesium --- cu interlayer --- intermetallic compound --- material flow --- finite element model --- temperature field --- welding defects --- brazing --- titanium --- alumina --- interfacial microstructure --- FSSW --- dissimilar metals --- interface behavior --- impact properties --- residual stresses --- neutron diffraction --- hardness --- precipitation --- wear-resistant martensitic steel --- submerged arc welding (SAW) --- heat treatment --- structures --- hardness changes --- Hardox Extreme steel --- bobbin friction stir welding --- materials flow --- metallography --- AA6082-T6 --- weld defect --- aluminum alloy --- heterogeneity --- mechanical --- P91 steel --- heat-resistant steels --- welding --- PWHT --- welds characterization --- heat-treatment processing time --- sustainability --- ultrasonic vibration --- dissimilar metal --- semi-solid status --- microstructure evolution --- spot welding --- hot-stamped hardened steel --- microstructure --- martensite --- bainite --- friction stir welding --- aluminium alloys --- forced air cooling --- microstructures --- tensile strength --- hardness distribution --- ferritic stainless steel --- cerium --- solidification crack --- Trans-varestraint test --- beryllium-copper alloy --- mechanical properties --- post-weld heat treatment --- high-power ultrasonic welding --- interface --- magnesium --- cu interlayer --- intermetallic compound --- material flow --- finite element model --- temperature field --- welding defects --- brazing --- titanium --- alumina --- interfacial microstructure --- FSSW --- dissimilar metals --- interface behavior --- impact properties --- residual stresses --- neutron diffraction --- hardness --- precipitation --- wear-resistant martensitic steel --- submerged arc welding (SAW) --- heat treatment --- structures --- hardness changes --- Hardox Extreme steel --- bobbin friction stir welding --- materials flow --- metallography --- AA6082-T6 --- weld defect --- aluminum alloy --- heterogeneity --- mechanical --- P91 steel --- heat-resistant steels --- welding --- PWHT --- welds characterization --- heat-treatment processing time --- sustainability --- ultrasonic vibration --- dissimilar metal --- semi-solid status --- microstructure evolution
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