Microstructure and Texture of Al2SixSn x = 0, 4, 8 mass% Alloys Processed by Equal Channel Angular PressingReportar como inadecuado




Microstructure and Texture of Al2SixSn x = 0, 4, 8 mass% Alloys Processed by Equal Channel Angular Pressing - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

1 UNAM - Universidad Nacional Autónoma de México 2 PIMM - Procédés et Ingénierie en Mécanique et Matériaux Paris 3 LAMPA - Laboratoire Arts et Métiers ParisTech d-Angers 4 CEMEF - Centre de Mise en Forme des Matériaux 5 Instituto de Investigaciones en Materiales Mexico, Mexico

Abstract : The influence of Sn on the microstructure, microstrain and grain morphology in Al–2Si–xSn samples processed by ECAP is reported and discussed. The pseudo-binary Al–xSn alloys where x = 0, 4, 8 mass% were produced by conventional ingot casting. Samples were characterised by X-ray diffractometry XRD, transmission electron microscopy TEM, dynamical mechanical analysis DMA and microhardness. Results showed that the initial texture was modified after several ECAP passes and the formation of subgrains were observed. The presence of Sn enhanced the tribological properties of the alloy but, the ECAP capacity for grain refining was reduced. Besides, it was also confirmed that the damping capacity and microhardness behaviour were dependent of the Sn contents.

Keywords : aluminium alloys equal channel angular pressing nanograins transmission electron microscopy Rietveld refinement





Autor: Gonzalo Gonzalez - Chedly Braham - Jean Lou Lebrun - Yvan Chastel - Wilfrid Seiler - Ignacio A. Figueroa -

Fuente: https://hal.archives-ouvertes.fr/



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