Characterization of Precipitation in Al-Li Alloy AA2195 by means of Atom Probe Tomography and Transmission Electron Microscopy

Figure 3

LAWATAP analysis of the microstructure at 30 K and 20% of pulse fraction. (a) Reconstructed volume showing the distribution of the and phases. (b) Corresponding proxigram composition profile for the platelet indicating chemical composition of () at.% Cu, () at.% Li, () at.% Mg, and () at.% Ag. (c) Corresponding combined proxigram composition profile for the platelet with a chemical composition of () at.% Cu, () at.% Li, and () at.% Mg.

(a)

(b)

(c)