Fig. 5: APT analysis of γ/γ′ interfacial dislocations for 5% crept sample.
From: Unveiling the Re effect in Ni-based single crystal superalloys
a APT reconstruction showing γ/γ′ interfaces and the two groove regions G1 and G2. b Enlarged view of groove region G1 (blue dashed rectangle) with distribution of Co atoms. c A 2D Re at% compositional profile across G1 reveals higher Re concentration at G1 indicating Re enrichment at interfacial dislocations. d 1D compositional profile of Re across G1 (along AB). Scale bar: a 50 nm. b 20 nm. The detailed analysis of groove G2 is shown in Supplementary Fig. 5. The error bars in (d) are estimated as described in Methods section.
