The addition of traces of Sr in AlSi alloys causes a flake-to-fibrous transition of the eutectic phase. This modification contributes to the improvement of tensile, impact and thermal shock properties. The objective of this research is to help in the understanding of the underlying mechanism of this modification.
To achieve this goal, the eutectic microstructure will be characterized at the nano-scale by means of Atom Probe Tomography and Transmission Electron Microscopy. These results will be then used as a guidance for simulation.
Articles in peer reviewed journals
Comparison of segregations formed in unmodified and Sr-modified Al–Si alloys studied by atom probe tomography and transmission electron microscopy
J. Barrirero, M. Engstler, N. Ghafoor, N. de Jonge, M. Odén and F. Mücklich
Journal of Alloys and Compounds 611 (2014) 410–421
- Atom Probe analysis of Sr distribution in AlSi foundry alloys
J. Barrirero , M. Engstler and F. MücklichLight Metals 2013 - The Minerals, Metals & Materials Society 291–296
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Last updated: 06/16/14