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. 2019 Apr 19;12(8):1293. doi: 10.3390/ma12081293

Figure 2.

Figure 2

Figure 2

Apparent density (A), measured with the Archimedes method; porosity fraction (B), evaluated through optical images analysis; and Brinell hardness (C) of the selective laser melting (SLM) Inconel 718 samples, produced with different combinations of process parameters as functions of the volumetric energy density (VED) value. In each plot, the blue data points indicate samples n.4, n.14, n.11, and n.12; polished cross sections of which are shown in Figure 3 as examples. The error bars in plots A and C indicate 95% confidence intervals, while the bars in plot B indicate the ranges between the lower and higher estimates of the pore coverage ratio. Adapted from [46].