Fig. 16: APT 1D concentration profiles across grain boundary of chromia scales. | npj Materials Degradation

Fig. 16: APT 1D concentration profiles across grain boundary of chromia scales.

From: PVD Ce-coating to mitigate intergranular oxidation of additively manufactured Ni-base alloy IN625

Fig. 16

Cr2O3 scales were grown on uncoated (AM) and Ce-coated (Ce-AM) AM alloy IN625 exposed for 1000 h in air at 900 °C. a Main segregating elements in GB of Cr2O3 on AM, b trace elements found in GB of Cr2O3 on AM. c Main segregating elements in GB of Ce-doped Cr2O3 on Ce-AM, d trace elements found in GB of Ce-doped Cr2O3 on Ce-AM. Proxigram across Ni-isosurface (3.5 at.%) found in the Cr2O3 grown on AM IN625 (e).

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