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. 2013 Feb 22;3:1327. doi: 10.1038/srep01327

Figure 5. STEM-EELS elemental mappings of a duplex precipitate in the high nickel alloy after aging at 500°C for 10 h in vacuum.

Figure 5

(a) HAADF-STEM image, (b) Fe-L2,3, (c) Cu-L2,3 and (d) Ni-L2,3, (e) Low-pass filtered high resolution [001]α-Fe HAADF image of a duplex precipitate with a Cu core partially encased by a B2-ordered phase in the high nickel alloy after aging at 500°C for 10 h in vacuum. The FFT pattern of bright Cu-rich core shows a distorted bcc structure, whereas the FFT pattern of the dark Ni(Mn, Al) phase (blue box) shows ordered 010B2 reflection indicating that the Ni(Mn, Al) phase has a B2 structure.