Microstructure and Mechanical Properties of Aluminum Processed by Multi-Axial Compression
| Periodical | Solid State Phenomena (Volume 176) |
|---|---|
| Main Theme | Light Metals and their Alloys I - Technology, Microstructure and Properties |
| Edited by | Agnieszka Botor-Probierz and Andrzej Kiełbus |
| Pages | 21-28 |
| DOI | 10.4028/www.scientific.net/SSP.176.21 |
| Citation | Kinga Rodak et al., 2011, Solid State Phenomena, 176, 21 |
| Online since | June, 2011 |
| Authors | Kinga Rodak, Krzysztof Radwański, Rafal M. Molak |
| Keywords | Aluminum, EBSD, Microstructure, Property Analysis, Severe Plastic Deformation (SPD), STEM |
| Price | US$ 28,- |
. In this study, commercial Al was subjected to plastic deformation by multi-axial compression. The microstructure and mechanical properties in dependence on effective strain were studied. Aluminum was processed to effective strain f = 9.6. The misorientation distribution and subgrain/grain size were analyzed by using a scanning electron microscopy (SEM) equipment with electron back scattered diffraction (EBSD) facility. The dislocation microstructure was investigated by a scanning transmission electron microscope (STEM). The mechanical properties as: yield strength (YS), ultimate tensile strength (UTS), uniform and total elongation were performed on MTS QTest/10 machine equipped with digital image correlation method (DIC). Deformation of Al by the multi-axial compression leads to grain refinement to ultra-fine grains (UFGs) and improvement in strength properties. Material exhibits the following strength parameters: UTS: 129 MPa, YS: 124 MPa after deformation at f = 9.6. These values are about two times higher compared with initial state.