Research Article
Synthesis and Characterization of Mechanical Properties of AA8014 + Si3N4/ ZrO2 Hybrid Composites by Stir Casting Process
Table 3
Experimental summary of wear and microhardness tests.
| Exp. No. | % of reinforcement | Stir speed (rpm) | Stir time (min) | Molten temperature (oC) | Wear (mm3/m) | Microhardness (VHN) | S/N ratio of wear | S/N ratio of microhardness |
| 1 | 4 | 400 | 20 | 700 | 0.256 | 118 | 11.2687 | 41.4582 | 2 | 4 | 400 | 20 | 700 | 0.382 | 116 | 11.2687 | 41.4582 | 3 | 4 | 400 | 20 | 700 | 0.112 | 121 | 11.2687 | 41.4582 | 4 | 4 | 500 | 25 | 800 | 0.654 | 115 | 6.9550 | 41.0758 | 5 | 4 | 500 | 25 | 800 | 0.256 | 99 | 6.9550 | 41.0758 | 6 | 4 | 500 | 25 | 800 | 0.334 | 133 | 6.9550 | 41.0758 | 7 | 4 | 600 | 30 | 900 | 0.095 | 148 | 13.1822 | 42.6045 | 8 | 4 | 600 | 30 | 900 | 0.127 | 120 | 13.1822 | 42.6045 | 9 | 4 | 600 | 30 | 900 | 0.345 | 142 | 13.1822 | 42.6045 | 10 | 6 | 400 | 25 | 900 | 0.115 | 166 | 11.8289 | 42.5405 | 11 | 6 | 400 | 25 | 900 | 0.412 | 133 | 11.8289 | 42.5405 | 12 | 6 | 400 | 25 | 900 | 0.118 | 116 | 11.8289 | 42.5405 | 13 | 6 | 500 | 30 | 700 | 0.234 | 152 | 12.0737 | 41.3380 | 14 | 6 | 500 | 30 | 700 | 0.345 | 98 | 12.0737 | 41.3380 | 15 | 6 | 500 | 30 | 700 | 0.111 | 117 | 12.0737 | 41.3380 | 16 | 6 | 600 | 20 | 800 | 0.410 | 137 | 8.4767 | 41.8277 | 17 | 6 | 600 | 20 | 800 | 0.318 | 117 | 8.4767 | 41.8277 | 18 | 6 | 600 | 20 | 800 | 0.396 | 119 | 8.4767 | 41.8277 | 19 | 8 | 400 | 30 | 800 | 0.124 | 121 | 14.6033 | 43.0553 | 20 | 8 | 400 | 30 | 800 | 0.098 | 160 | 14.6033 | 43.0553 | 21 | 8 | 400 | 30 | 800 | 0.281 | 156 | 14.6033 | 43.0553 | 22 | 8 | 500 | 20 | 900 | 0.108 | 134 | 13.1902 | 41.8388 | 23 | 8 | 500 | 20 | 900 | 0.345 | 128 | 13.1902 | 41.8388 | 24 | 8 | 500 | 20 | 900 | 0.115 | 112 | 13.1902 | 41.8388 | 25 | 8 | 600 | 25 | 700 | 0.312 | 135 | 12.1783 | 40.8975 | 26 | 8 | 600 | 25 | 700 | 0.099 | 95 | 12.1783 | 40.8975 | 27 | 8 | 600 | 25 | 700 | 0.273 | 113 | 12.1783 | 40.8975 |
|
|