130 Prakt. Met. Sonderband 52 (2018) 
suggest, that a large fraction of aluminum is evaporated during the arc melting production 
process. Instead of 20 at.% only 13.02 at.% remains in the matrix. 
Results from XRD measurements are consistent with these findings (Fig. 4). The 
diffraction pattern shows a fcc phase (most likely the solid solution) and a bcc phases 
(most likely the V rich phase) together with a multitude of different phases, which could not 
be identified yet, since most of the peaks are overlapping each other or show only low 
intensity. 
58.12 
Pas 
wast 
Fig. 2: SEM bright-field images of AI20Fe20Ni20Ti20V20 (900 °C/ 20 h) 
x 
4 32. ME 
Fig. 3: EDS element mappings; a) secondary electron image (SE); b) V distribution; The result 
c) Cu distribution; AI20Fe20Ni20Ti20V20 (900 °C/ 20 h) Mis sz: 
hive 
3.1.3 APT INVESTIGATIONS COmpress 
After the | 
First atom probe tomography measurements revealed that there are small clusters Microstruc 
(approx. 10 nm in diameter) of solid solution phase within the Vanadium rich phase. lathes 
Additionally homogeneously distributed clusters of vanadium (ca. 2 — 3 nm in diameter) Ire san 
were found in the solid solution of the alloy (Fig. 5). EES 
{rE