Issue 66

G.V. Krishna Reddy et alii, Frattura ed Integrità Strutturale, 66(2023) 261-272; DOI: 10.3221/IGF-ESIS.66.16

(a)

(b)

(c)

(d)

Figure 5: EDS profile analysis for the surfaces.

Energy absorption The impact testing experimentations are carried out for the prepared Charpy V notch specimens as per Taguchi's L9 design of experiments. The results of the investigations are listed in Tab. 3.

Wt% of Graphite

Wt% of SiC

Post-Ageing Cooling Methods

Impact Energy Absorbed (J)

Case No

Material

1 2 3 4 5 6 7 8 9

0 0 0 3 3 3 6 6 6

0 3 6 0 3 6 0 3 6

FC AC

Al6061 Alloy Al6061-3%SiC Al6061-6%SiC Al6061-3%Gr

49.8 42.8 41.6 42.1 39.2 50.7 37.1 44.2 38.4

WQ

AC

WQ

Al6061-3%Gr/3%SiC Al6061-3%Gr/6%SiC Al6061-6%Gr/3%SiC Al6061-6%Gr/6%SiC Al6061-6%Gr

FC

WQ

FC AC

Table 3: Impact testing results of the L9 orthogonal array.

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