Figure 1 | Scientific Reports

Figure 1

From: Formation of equiaxed crystal structures in directionally solidified Al-Si alloys using Nb-based heterogeneous nuclei

Figure 1

Representative results of the microstructural characterisation performed on the Al-2Nb-xB master alloys: (a,b) optical and secondary electron micrographs showing the distribution of the Nb-based compounds embedded into the Al matrix, (c,d) semi-quantitative EDS analysis of the chemistry and stoichiometry of the Nb-based compounds, and (e,f) TEM and SEM micrographs of deep etched Al-2Nb-xB master alloys showing the tetragonal and hexagonal crystallographic structure of Al3Nb and NbB2 crystals, respectively.

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