Experimental modelling of critical damage obtained in Al-Mg and Al-Mn alloys for both annealed state and previously deformed by ECAP
Fecha
2016Autor
Versión
Acceso abierto / Sarbide irekia
Tipo
Artículo / Artikulua
Versión
Versión publicada / Argitaratu den bertsioa
Impacto
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10.1016/j.matdes.2015.11.017
Resumen
Assessing the damage produced in plastic deformation processes permits the optimum manner to shape a material
that could avoid any cracks from appearing. In this present research work, the absolute critical damage in the
following aluminium alloys: AA5754, AA5083 and AA3103 is to be determined. In order to do this, compression
tests between plane-shape dies will be performed for the abovementi ...
[++]
Assessing the damage produced in plastic deformation processes permits the optimum manner to shape a material
that could avoid any cracks from appearing. In this present research work, the absolute critical damage in the
following aluminium alloys: AA5754, AA5083 and AA3103 is to be determined. In order to do this, compression
tests between plane-shape dies will be performed for the abovementioned alloys at a temperature range which
varies from 25 °C to 300 °C and using Cockroft–Latham's prediction model. Furthermore, the results obtained by
finite volume simulations will be compared with those obtained by experimental tests with isothermal upsetting.
Given that in these last few years there has been a growing interest in obtaining mechanical components from
submicrometric and/or nanometric structure materials which have been previously-processed by severe plastic
deformation (SPD), this present research work deals with the determination of absolute critical damage for the
abovementioned alloys once they have been ECAP (Equal Channel Angular Pressing) processed. This is considered
to be of interest since it could allow the prediction of optimal processing conditions in advance. [--]
Materias
Damage,
ECAP,
Modelling
Editor
Elsevier
Publicado en
Materials and Design 90 (2016) 881–890
Departamento
Universidad Pública de Navarra. Departamento de Ingeniería Mecánica, Energética y de Materiales /
Nafarroako Unibertsitate Publikoa. Mekanika, Energetika eta Materialen Ingeniaritza Saila
Versión del editor
Entidades Financiadoras
The authors of this present research work acknowledge the support given by the Spanish Ministry of Economy and Competitiveness through the Research Project DPI2013-41954-P.