Tribology of Coated 316L SS by Various Nanoparticles
Table 4
Comparison of the coefficient of friction between 316L SS and various coating materials (Ta, Nb, and v) at different sputtering times using one-way ANOVA test.
1st specimen
2nd specimen
3rd specimen
Mean
SD ±
ANOVA
Nb-1 hr
0.16
0.21
0.21
0.19
0.027
F = 10.103
Nb-2 hrs
0.11
0.13
0.24
0.16
0.072
Nb-3 hrs
0.18
0.16
0.16
0.17
0.012
SS
0.44
0.38
0.33
0.38
0.053
Ta-1 hr
0.22
0.20
0.20
0.21
0.009
F = 10.600
Ta-3 hrs
0.15
0.26
0.21
0.21
0.055
Ta-3 hrs
0.25
0.22
0.15
0.21
0.048
SS
0.44
0.38
0.33
0.38
0.053
V-1 hr
0.29
0.40
0.50
0.40
0.083
F = 1.190
V-2 hrs
0.41
0.42
0.44
0.42
0.017
V-3 hrs
0.45
0.52
0.45
0.47
0.041
SS
0.44
0.38
0.33
0.38
0.053
ANOVA
1 hr (Nb, Ta, V) and SS
F = 10.512
2 hrs (Nb, Ta, V) and SS
F = 17.720
3 hrs (Nb, Ta, V) and SS
F = 21.365
The mean difference is significant at the 0.05 level.
