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. 2015 Jul 10;6:7748. doi: 10.1038/ncomms8748

Figure 2. Compression results for the pillars prepared from the HEA films.

Figure 2

(a–d) SEM images of typical as-deformed HEA pillars (IBAD) with the diameter (D) ranging from ∼1 μm to 100 nm. (e) Representative stress–strain curves of the IBAD HEA pillars, showing a size-dependent strength. (f) A comparison of the strength–size relationships for the columnar-structured HEA pillars, single-crystal HEA (using the bulk specimen11) and W pillars20,21. The results for the Normal HEA pillars are similar to the IBAD HEA pillars (Supplementary Figs 2 and 3). Scale bars, 1 μm (a), 500 nm (b), 200 nm (c) and 100 nm (d).