Determination of Al Site Preference in L12 TiZn3 - Base Trialuminides

Witold K. Krajewski

doi:10.4028/www.scientific.net/MSF.508.615

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HomeMaterials Science ForumMaterials Science Forum Vol. 508Determination of Al Site Preference in L12 TiZn3 -...

Determination of Al Site Preference in L1₂ TiZn₃ - Base Trialuminides

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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Periodical:

Materials Science Forum (Volume 508)

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615-620

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https://doi.org/10.4028/www.scientific.net/MSF.508.615

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Online since:

March 2006

Authors:

Witold K. Krajewski

Keywords:

H. Rietveld Analysis, Titanium Aluminide, Zinc Aluminium Alloy, Zn-Ti Master Alloy

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