Overview of friction stir welding and examples of adoptions; highlights and issues.- Fundamentals of the friction stir process; process parameters, material flow and microstructural evolution, tool features and role.- Modeling and simulation of microstructural evolution during FSW/P.- Friction stir welding configurations and tool selection; gaps and mismatches.- FSW of aluminum alloys; low strength alloys, tailor welded blanks and tool/process design to maximize productivity, high strength alloys and strategies to maximize joint efficiency.- FSW of magnesium alloys.- FSW of high temperature alloys; issues with tool materials and examples of titanium alloys and steels.- Friction stir processing; overview of derivative processes and potential.- Residual stresses and mitigation strategies.
Rajiv Mishra is a professor in the Department of Materials Science and Engineering at the University of North Texas.
Partha Sarathi De is an assistant professor at the School of Minerals, Metallurgical & Materials Engineering at the Indian Institute of Technology.
Nilesh Kumar is a post-doctoral research associate at University of North Texas.
This book lays out the fundamentals of friction stir welding and processing and builds toward practical perspectives. The authors describe the links between the thermo-mechanical aspects and the microstructural evolution, and use of these for the development of the friction stir process as a broader metallurgical tool for microstructural modification and manufacturing. The fundamentals behind the practical aspects of tool design, process parameter selection and weld related defects are discussed. Local microstructural refinement has enabled new concepts of superplastic forming and enhanced low temperature forming. The collection of friction stir based technologies is a versatile set of solid state manufacturing tools.