Rajinikanth, V., Venkateswarlu, K., Sen, M.K., Das, M., Alhajeri, S.N. and Langdon, T.G. (2011) Influence of scandium on an Al-2% Si alloy processed by high-pressure torsion. Materials Science and Engineering: B, 528 (3), 1702-1706. (doi:10.1016/j.msea.2010.10.102).
Abstract
High-pressure torsion (HPT) was used to process Al–2% Si and Al–2% Si–0.25% Sc alloys for up to five turns and the mechanical properties of the processed materials were evaluated using the ball indentation technique (BIT). The results show that the presence of Al3Sc precipitates is effective in producing higher strength levels and greater grain refinement in the Al–2% Si–0.25% Sc alloy. The introduction of scandium reduces the grain size of the Al–2% Si alloy from not, vert, similar0.38 to not, vert, similar0.15 ?m after 5 turns of HPT and the corresponding maximum tensile strength is increased from not, vert, similar325 to not, vert, similar375 MPa. The grain and substructure formation in the Al–2% Si alloy is similar to aluminum with dislocation cell formation and a reasonably recovered microstructure whereas in the Al–2% Si–0.25% Sc alloy it is non-homogeneous with arrays of non-equilibrium boundaries and dislocation tangles within the grains
Full text not available from this repository.
More information
Identifiers
Catalogue record
Export record
Altmetrics
Contributors
University divisions
- Faculties (pre 2018 reorg) > Faculty of Engineering and the Environment (pre 2018 reorg)
- Faculties (pre 2018 reorg) > Faculty of Engineering and the Environment (pre 2018 reorg) > Mechanical Engineering (pre 2018 reorg) > Engineering Mats & Surface Engineerg Gp (pre 2018 reorg)
Current Faculties > Faculty of Engineering and Physical Sciences > School of Engineering > Mechanical Engineering > Mechanical Engineering (pre 2018 reorg) > Engineering Mats & Surface Engineerg Gp (pre 2018 reorg)
Mechanical Engineering > Mechanical Engineering (pre 2018 reorg) > Engineering Mats & Surface Engineerg Gp (pre 2018 reorg)
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.