Figure 2
From: Highly hard yet toughened bcc-W coating by doping unexpectedly low B content
(a–c) Cross-sectional SEM images for the coatings with B content of 0 at. % (a), 6.3 at. % (b), 24.4 at. % (c). (d–f) AFM 3D micrographs in dimensions of 2 × 2 μm2, the root-mean-square roughness (Rq) is marked.
