Tribology of Coated 316L SS by Various Nanoparticles

Table 6

Correlation between surface microhardness and coefficient of friction.

Variables		Surface microhardness
CoF	Coatings	Nb	Ta	V
	Pearson correlation	0.09	−0.575	0.153
	Sig. (2-tailed)	0.817	0.105	0.694
	N	9	9	9

Correlation is significant at the 0.01 level (2-tailed).