Experimental Investigation on Tribological Behaviour of Various Processes of Anodized Coated Piston for Engine Application

Table 3

Results for hard anodized samples.

S. No	Current	Thickness of the anodized layer (microns)	Hardness value (HV)	Conductive test	Time interval (minutes)
1	2.5 amps & 20 V	57	632	Pass	45
2	2.5 amps & 20 V	56	575	Pass	45