Issue 62

G.B. Veeresh Kumar et alii, Frattura ed Integrità Strutturale, 62 (2022) 134-149; DOI: 10.3221/IGF-ESIS.62.10

Figure 5: Hardness values of Al6061-SiC-Gr HMMCs.

Figure 6: Dislocation Density and Increase in Yield strength of Al6061-SiC-Gr HMMCs .

Tensile properties Fig. 7 shows the tensile properties (ultimate tensile strength (UTS) and %elongation) of different weight percentages of HMMCs. The variation in UTS of Al6061-SiC-Gr HMMCs with a growth in the percentage of SiC particles is observed from the figure. The UTS of HMMCs improved by a magnitude of 73.8% with the increase in weight percentages of SiC particles from 0 to 9 wt%. The increase in strength is due to the increase in hardness of the Al6061-SiC-Gr HMMCs with effective distribution of load from matrix to reinforcement particulates. The trial was conducted at room temperature, and the findings are in line with the observations of other researchers' studies [29]. However, the continuous decrease in %elongation with the increase in weight percentages of SiC particles is also observed. The ductility drops by 26% with the

140

Made with FlippingBook PDF to HTML5