Table 1.
Chemical Composition of AlP0507.
Table 2.
Control parameters and corresponding levels used in the present study.
Fig 1.
(a) Schematic diagram of the stir casting experimental setup and digital photograph of a sample cut out for (a) tensile test, (c) hardness test and (d) impact test.
Fig 2.
Architecture of artificial neural network.
Table 3.
L27 orthogonal array of input parameters and corresponding mechanical properties.
Fig 3.
SEM images of (a) Al/2 wt.% RHA/2 wt.% MWCNT composite, and (b) Al/2 wt.% RHA/3 wt.% MWCNT composite and (c) EDS graph of the portion marked in (a).
Fig 4.
Variation in the mean S/N ratio for tensile strength.
Fig 5.
Variation in the mean S/N ratio for hardness.
Fig 6.
Variation in the mean S/N ratio for toughness.
Fig 7.
Comparison of the projected values with the values obtained via experimentation, regression, and ANN model for (a) tensile strength, (b) hardness and (c) toughness.
Table 4.
Outcome of the cross-validation strategy; average of the subsets.
Fig 8.
Schematic diagram depicting 3 × 5-fold cross-validation strategy.
Table 5.
Response table for grey relational grade.
Fig 9.
Variation in the mean S/N ratio for grey relational grade.
Table 6.
The ANOVA results of the analysis for grey relational grade.
Table 7.
Comparison between initial and optimal stir-casting parameters.