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Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The influence of factors on superplastic deformation of Al–Al4C3 composites
AbstractDeformation of the Al–Al4C3 composites with different volume fraction of Al4C3 phase was tested at different temperatures and different strain rates. As shown, at temperatures 400–450°C and the highest strain rate applied 101s−1, a significant ductility growth was observed. According to the results of Tunnelling Electron Microscope analysis, it is supposed to be the result of dynamic grain polygonization, grain slip and rotation, partial recrystallization and dislocation creep in the tested system, known as strain induced dynamic recovery. Increase of the volume fraction of secondary phase in the investigated composite changed the deformation mechanism (from more slip on grain boundaries to more grain rotation).
The influence of factors on superplastic deformation of Al–Al4C3 composites
AbstractDeformation of the Al–Al4C3 composites with different volume fraction of Al4C3 phase was tested at different temperatures and different strain rates. As shown, at temperatures 400–450°C and the highest strain rate applied 101s−1, a significant ductility growth was observed. According to the results of Tunnelling Electron Microscope analysis, it is supposed to be the result of dynamic grain polygonization, grain slip and rotation, partial recrystallization and dislocation creep in the tested system, known as strain induced dynamic recovery. Increase of the volume fraction of secondary phase in the investigated composite changed the deformation mechanism (from more slip on grain boundaries to more grain rotation).
The influence of factors on superplastic deformation of Al–Al4C3 composites
Besterci, M. (Autor:in) / Velgosová, O. (Autor:in)
21.01.2005
5 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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