Determination of Al Site Preference in L12 TiZn3 - Base Trialuminides |
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| Journal | Materials Science Forum (Volume 508) |
|---|---|
| Volume | Solidification and Gravity IV |
| Edited by | A Roósz, M. Rettenmayr and Z. Gácsi |
| Pages | 615-620 |
| DOI | 10.4028/www.scientific.net/MSF.508.615 |
| Citation | Witold K. Krajewski, 2006, Materials Science Forum, 508, 615 |
| Online since | March, 2006 |
| Authors | Witold K. Krajewski |
| Keywords | H. Rietveld Analysis, Titanium Aluminides, Zinc Aluminium Alloy, Zn-Ti Master Alloy |
| Abstract | The atoms site preference in the Al3Ti-Zn system has been studied using H. Rietveld method. The L12 Ti(Al, Zn)3 particles evolve in a ZnAl25 melt from the L12TiZn3 particles in the ZnTi4 master alloy. It is found that Zn is replaced by Al during the transformation TiZn3 → Ti(Al, Zn)3. In the evolving fcc L12 Ti(Al, Zn)3 phase Ti occupies (0, 0, 0) position while Al and Zn occupy (0, 0.5, 0.5) position, similarly to Al and X in the Al3Ti-X systems, where X = Ni, Cr, Mn, Cu, Ag, Pd [1, 2]. |
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