| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1571411 | Materials Characterization | 2011 | 7 Pages |
Dissimilar Channel Angular Pressing (DCAP) is a severe plastic deformation technique to improve the mechanical properties of flat products by producing ultrafine grains. In this study, the changes in the microstructure and mechanical properties of 6061 Al-alloy strips deformed by various numbers of DCAP passes were investigated. Some DCAPed samples were also held at 200 °C and 350 °C to investigate the effect of post-annealing. Mechanical properties were determined by hardness and tension tests; and microstructural changes were investigated by TEM analysis. Up to a critical level of plastic strain, remarkable improvements have been observed in the strength and hardness of the severely deformed strips; and the improvements have been explained by variations in grain size, dislocation structure, and formation of subgrains.
Research Highlights►Dissimilar Channel Angular Pressing (DCAP). ►Severe plastic deformation (SPD). ►Transmission Electron Microscopy of the 6061 Al alloy. ►Mechanical Properties of 6061 Al alloy.
