Issue 73

M. Ravikumar, Fracture and Structural Integrity, 73 (2025) 219-235; DOI: 10.3221/IGF-ESIS.73.15

Sliding Speed (rpm)

Wear Loss (Grams)

Sl. No.

n-B 4 C (wt. %)

Load (N)

COF (µ)

1 2 3 4 5 6 7 8 9

1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3

7 7 7

750

0.074 0.086 0.092 0.086 0.094 0.095 0.093 0.090 0.098 0.035 0.074 0.070 0.066 0.068 0.079 0.075 0.088 0.085 0.024 0.025 0.049 0.038 0.046 0.071 0.052 0.060 0.084

0.95 0.92 0.90 0.88 0.84 0.87 0.82 0.80 0.69 0.85 0.78 0.72 0.70 0.69 0.67 0.70 0.68 0.55 0.81 0.60 0.58 0.52 0.55 0.53 0.52 0.56 0.39

1000 1250

14 14 14 21 21 21

750

1000 1250

750

1000 1250

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

7 7 7

750

1000 1250

14 14 14 21 21 21

750

1000 1250

750

1000 1250

7 7 7

750

1000 1250

14 14 14 21 21 21

750

1000 1250

750

1000 1250

Table 3: L27 Orthogonal array of experimental layout.

Sliding Speed (rpm)

Level

n-B 4 C (wt. %)

Load (N) 0.05878 0.07144 0.08056 0.02178

1 2 3

0.08978 0.07111 0.04989 0.03989

0.06033 0.07011 0.08033 0.02000

Delta Rank

1

2

3

Table 4: Response Table for Wear Loss.

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