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Erschienen in:
2015 | OriginalPaper | Buchkapitel
Material Processing by Sliding, Grinding, Machining, Extrusion, and Wire Drawing
verfasst von : Lawrence E. Murr
Erschienen in: Handbook of Materials Structures, Properties, Processing and Performance
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Abstract
In this chapter, extreme deformation phenomenon is examined in several key areas of metal working, material working science, and technology: sliding and sliding friction, grinding and machining as classical examples of subtractive manufacturing, and extrusion and wire drawing, which can involve high strains and high-strain rates, producing uniform DRX grain structures. Especially notable in sliding and grinding is the deformation zone which extends from 10 10 μm mu;m to several hundred microns, sometimes in lamellar DRX grain layers. Drawn wires, especially pearlitic steel wires, can have yield strengths in excess of 5 GPa and represent the limits of extreme deformation or severe deformation processing.