Fig. 6: Probing the Cu distribution in the microstructure.
From: Tailoring precipitates for enhanced hydrogen trapping in aluminum alloys
a The thermodynamics of Cu distribution at the precipitate-matrix interface and the GBs. b The \({\Delta G}_{{\rm{soln}}}^{0}\) values corresponding to H trapping by the two interfaces as a function of Cu coverage. c H decorated dislocation cuts through the Al3Sc causing the H atoms to be trapped in the bulk of the Cu-doped precipitate. d Cu concentration at the (100) interface via atomic elemental mapping. e The HAADF image showing the orientation between the Al matrix and the Al3Sc precipitate.
