Fig. 4: Kinetics of subscale void propagation in AM alloy IN625.
From: PVD Ce-coating to mitigate intergranular oxidation of additively manufactured Ni-base alloy IN625
Determined from SEM images of uncoated (circles) and Ce-coated (squares) AM alloy IN625 exposed in air for up to 1000 h at 900 °C. Lines denote parabolic fits with \({k}_{p}^{{void},{AM}}\,\)= 3.6 × 10−16 m2 s−1 for uncoated and \({k}_{p}^{{void},{AM}-{Ce}}\,\)= 7.3 × 10−17 m2 s−1 for Ce-coated AM alloy IN625.
