Experimental Evaluation of Erosion of Gunmetal under Asymmetrical Shaped Sand Particle

Table 9

Erosion efficiency of different operating conditions for gunmetal (experimental design using L₂₇ orthogonal array for Taguchi method analysis).

Exp. number	Impact velocity; (m/s)	Density of impact; particle () kg/m^3	Hardness of impact particle () MPa	Erosion rate; () mg/kg	Erosion; efficiency ()
1	30	1436	42.00	1687.833	34.70975
2	30	1440	43.20	1298.000	33.62469
3	30	1443	44.00	1238.000	30.32633
4	30	1436	42.00	1172.167	9.855353
5	30	1440	43.20	1105.500	13.69071
6	30	1443	44.00	1512.000	8.261464
7	30	1436	42.00	957.833	9.316994
8	30	1440	43.20	1393.667	7.317492
9	30	1443	44.00	1077.667	10.53423
10	40	1436	42.00	1628.667	22.58272
11	40	1440	43.20	1501.333	33.78172
12	40	1443	44.00	2211.167	4.330798
13	40	1436	42.00	297.587	10.04006
14	40	1440	43.20	2002.167	7.844489
15	40	1443	44.00	1540.167	8.246998
16	40	1436	42.00	1699.833	5.106057
17	40	1440	43.20	1357.833	4.556597
18	40	1443	44.00	1193.000	6.517931
19	50	1436	42.00	1791.500	25.07766
20	50	1440	43.20	2605.000	19.85867
21	50	1443	44.00	2031.000	21.86445
22	50	1436	42.00	2347.500	5.924445
23	50	1440	43.20	1846.000	5.523551
24	50	1443	44.00	1694.500	4.961363
25	50	1436	42.00	1597.833	3.588368
26	50	1440	43.20	1491.000	5.301186
27	50	1443	44.00	2168.667	5.278079