Research Article
Tribological Behavior on Stir-Casted Metal Matrix Composites of Al8011 and Nano Boron Carbide Particles
Table 4
Gray coefficient and rank position of wear rates and friction coefficient.
| Wear samples order | Wear rate (mm3/min) | Friction coefficient | Coefficient (WR) | Coefficient (FC) | Mixed GRG | GRG rank |
| 1 | 2.451 | 0.159 | 1.000 | 1.000 | 1.000 | 1 | 2 | 3.684 | 0.651 | 0.443 | 0.389 | 0.416 | 6 | 3 | 2.985 | 0.416 | 0.648 | 0.550 | 0.599 | 3 | 4 | 2.485 | 0.162 | 0.967 | 0.991 | 0.979 | 2 | 5 | 3.124 | 0.528 | 0.593 | 0.459 | 0.526 | 5 | 6 | 3.951 | 0.591 | 0.396 | 0.421 | 0.408 | 7 | 7 | 3.012 | 0.492 | 0.636 | 0.485 | 0.561 | 4 | 8 | 4.005 | 0.752 | 0.387 | 0.346 | 0.367 | 8 | 9 | 4.415 | 0.786 | 0.333 | 0.333 | 0.333 | 9 |
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GRG, gray relational grade.
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