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Showing 1 - 11 of 11 matches in All Departments
This collection presents fundamentals and the current status of friction stir welding (FSW) and solid-state friction stir processing of materials, and provides researchers and engineers with an opportunity to review the current status of the friction stir related processes and discuss the future possibilities. Contributions cover various aspects of friction stir welding and processing including their derivative technologies. Topics include but are not limited to: * derivative technologies * high-temperature lightweight applications * industrial applications * dissimilar alloys and/or materials * controls and nondestructive examination * simulation * characterization
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.
This collection presents fundamentals and the current status of friction stir welding (FSW) and solid-state friction stir processing of materials, and provides researchers and engineers with an opportunity to review the current status of the friction stir related processes and discuss the future possibilities. Contributions cover various aspects of friction stir welding and processing including their derivative technologies. Topics include but are not limited to: * derivative technologies * high-temperature lightweight applications * industrial applications * dissimilar alloys and/or materials * controls and nondestructive examination * simulation * characterization
This book will summarize research work carried out so far on dissimilar metallic material welding using friction stir welding (FSW). Joining of dissimilar alloys and materials are needed in many engineering systems and is considered quite challenging. Research in this area has shown significant benefit in terms of ease of processing, material mixing, and superior mechanical properties such as joint efficiencies. A summary of these results will be discussed along with potential guidelines for designers.
In traditional system of Indian medicine, the whole plant of Phyllanthus acidus L. Skeels (Euphorbiaceae) has been widely employed for the treatment of variety of disease including inflammation and hepatic ailments. With this view, the present study was undertaken to investigate the hepatoprotective and anti-inflammatory potential of Phyllanthus acidus. The biochemical and histological changes were monitored to evaluate the extent of hepatic toxicity and inflammation. The methanolic extracts of Phyllanthus acidus at a dose of 200 and 400 mg/kg, showed a significant protective activity in rats against thioacetamide and paracetamol induced hepatotoxicity. The same extract also showed promising anti-inflammatory activity. Phytochemical and chromatographic studies revealed the presence of flavonoids and phenolics in the extract, which suggest that these constituents might be associated with exhibited biological properties.
This book describes the fundamentals of residual stresses in
friction stir welding and reviews the data reported for various
materials. Residual stresses produced during manufacturing
processes lead to distortion of structures. It is critical to
understand and mitigate residual stresses. From the onset of
friction stir welding, claims have been made about the lower
magnitude of residual stresses. The lower residual stresses are
partly due to lower peak temperature and shorter time at
temperature during friction stir welding. A review of residual
stresses that result from the friction stir process and strategies
to mitigate it have been presented. Friction stir welding can be
combined with additional in-situ and ex-situ manufacturing steps to
lower the final residual stresses. Modeling of residual stresses
highlights the relationship between clamping constraint and
development of distortion. For many applications, management of
residual stresses can be critical for qualification of
component/structure.
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