Deformation heterogeneity study of a 6061-T6 aluminum alloy processed by equal channel angular pressing
Por:
Reyes-Ruiz C., Figueroa I.A., Braham C., Cabrera J.M., Zanellato O., Baiz S., Gonzalez G.
Publicada:
1 ene 2017
Resumen:
Among the severe plastic deformation techniques, the equal channel angular pressing (ECAP) has drastically improved the mechanical properties of the processed alloys. However, information regarding friction phenomenon, which modifies the deformation at the surface and the heterogeneity microstrain state produced by the process itself, is still scarce. In the present work, the deformation heterogeneity and the friction effect, at the surface in the bulk material of the 6061-T6 aluminum alloy processed by ECAP, is presented and discussed. The residual stress (RS) measurements were performed by means of X-Ray diffraction. By means of synchrotron diffraction, volumetric sections of the ECAPed samples were characterized. Finite element analysis showed a good agreement with the experimentally obtained residual stress and microhardness mapping results. The study also showed that the highest deformation zones were located at the outer parts of the deformed samples (top and bottom), while the inner zone showed strain oscillations of up to 49±2 MPa. © 2017 Trans Tech Publications, Switzerland.
Filiaciones:
Reyes-Ruiz C.:
Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito exterior S/N, Cd. Universitaria, A.P. 70-360, Coyoacán, Mexico
Laboratoire Procédés et Ingénierie Mécanique et Matériaux, CNRS, UMR 8006, ENSAM-CNAM, 151, Bd de l, Hôpital, Paris, France
Figueroa I.A.:
Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito exterior S/N, Cd. Universitaria, A.P. 70-360, Coyoacán, Mexico
Braham C.:
Laboratoire Procédés et Ingénierie Mécanique et Matériaux, CNRS, UMR 8006, ENSAM-CNAM, 151, Bd de l, Hôpital, Paris, France
Cabrera J.M.:
Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica, ETSEIB-Universidad Politécnica de Cataluña, Av Diagonal 647, Barcelona, Spain
Fundació CTM Centre Tecnológic, Pl. de la Ciencia 2, Manresa, Spain
Zanellato O.:
Laboratoire Procédés et Ingénierie Mécanique et Matériaux, CNRS, UMR 8006, ENSAM-CNAM, 151, Bd de l, Hôpital, Paris, France
Baiz S.:
Laboratoire Procédés et Ingénierie Mécanique et Matériaux, CNRS, UMR 8006, ENSAM-CNAM, 151, Bd de l, Hôpital, Paris, France
Gonzalez G.:
Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito exterior S/N, Cd. Universitaria, A.P. 70-360, Coyoacán, Mexico
Laboratoire Procédés et Ingénierie Mécanique et Matériaux, CNRS, UMR 8006, ENSAM-CNAM, 151, Bd de l, Hôpital, Paris, France
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