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Table 4

Results obtained from hardness, impact and tensile tests for L9 OA.

Test no. Coded values Actual settings Response value



I S F C (AMP) S (cm/min) f (Hz) H (VHN) J (Joule) UTS (MPa)
1 1 1 1 60 10 0 250.00 56 543.94
2 1 2 2 60 15 150 275.00 62 572.54
3 1 3 3 60 20 300 299.00 49 597.91
4 2 1 2 80 10 150 271.00 63 572.00
5 2 2 3 80 15 300 292.32 48 609.00
6 2 3 1 80 20 0 260.00 58 545.86
7 3 1 3 100 10 300 289.90 51 600.33
8 3 2 1 100 15 0 255.00 54 550.72
9 3 3 2 100 20 150 279.00 60 580.36

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