|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Ultrafine Grained Materials IX
||Comparative Study of the Wear Properties in Ultrafine-grained 5083 and 2024 Aluminum Alloys
||M. G. Orozco -Sandoval, M. A. L. Hernandez-Rodriguez, R. Deaquino-Lara, E. Garcia-Sanchez
|On-Site Speaker (Planned)
With the aim to study the effect of the severe plastic deformation on the tribological properties, grain refinement and mechanical properties in aluminum alloys, two commercial Al-Mg and Al-Cu alloys has been deformed at room temperature by multi-pass 90º ECAE. After the processing each sample was evaluated by means of micro-indentation tests and the microstructural condition was determinate by electron microscopy.
Subsequently sliding wear test was undertaken in a ball on disk configuration under lubricated and non-lubricated conditions using a steel ball.
It was found a wear resistance increasing with the rise in the deformation promoted by the number of extrusion passes; the effect of the initial microstructure on the wear decreases with the level of strain in the material. The lubrication condition promotes changes in the response of the material. The dominant wear mechanisms were identified and correlated with the nature of the strengthening mechanisms in each alloy.