Figure 6. APT results from analysis of 17-4 PH SS tempered at 510°C for 4 h after solution-treatment. Atom maps (30×30×40 nm3)of(a) Cu, (b) Ni, (c) Al, (d) Mn and (e) Si, (f) Atom maps of Ni and Si together with 10 at.% Cu iso- concentration surfaces in the selected box (30×5×40 nm3). g: Atom maps of Ni, Al and Cu together with 10 at.% Cu isoconcentration surfaces in the same box as in (f).
Figure 7. Proxigram concentration profiles of Fe, Cu, Cr, Ni, Al, Si and Mn based on 10 at.% Cu isoconcentration sur- faces in Fig. 6 (spherical orange surfaces). a: ROI-1, smaller CRPs, (b) ROI-2, larger CRPs.
