Issue 57

A. Basiri et alii, Frattura ed Integrità Strutturale, 57 (2021) 373-397; DOI: 10.3221/IGF-ESIS.57.27

AlSi_N_T6 sample at two typical sites. Fig. 9 exhibits the nano-clay particle distribution in the aluminum matrix. A highly magnified FE-SEM image for AlSi_N_T6 at a clustered particle site is depicted in Fig. 10 and its counterpart EDS results in Fig. 11. The elements, which had percentages more than 1% including Al, Si, Cu, Mg, and O according to Tab. 1, were presented. From Fig. 11, it was easy to recognize the nano-particles dispersed in the aluminum matrix by focusing on the two most abundant elements including Si and O in the nano-clay chemical composition. Observations indicated that the dispersion of nano-particles was proper but not perfect and so desirable and therefore, some small degrees of agglomerations were detected in the microstructure.

Figure 7: FE-SEM images of AlSi_N_T6 with low magnifications.

Figure 8: EDS results for AlSi_N_T6 with low magnifications [16].

380