Fig. 3: APT analysis of a D-charged peak-aged Al–Zn–Mg–Cu sample containing a GB (120 °C for 24 h). | Nature

Fig. 3: APT analysis of a D-charged peak-aged Al–Zn–Mg–Cu sample containing a GB (120 °C for 24 h).

From: Hydrogen trapping and embrittlement in high-strength Al alloys

Fig. 3

a, The iso-surfaces highlight the dispersion of fine (Mg, Zn)-rich precipitates in the matrix, coarse ones at the GB, and Al3Zr dispersoids. Scale bar: 30 nm. b, Atom maps of H and D(H2+). c, Solute distribution at the GB plane. d, Composition profile across one Al3Zr dispersoid at the GB. e, Composition profile of one (Mg, Zn)-rich precipitate at the GB. f, Solute composition profile across the GB in between precipitates. The shaded bands of the traces correspond to the standard deviations of the counting statistics in each bin of the profile.

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