Dear all,
I would like to conduct scratch and linear reciprocating tribo-test on my magensium alloy, which has a plasma electrolytic oxide (PEO) layer of about 20 um and 10 - 20 um of Parylene coating on top of it. So it is a double layer system.
I made a research on ASTM standard tests for scratch and linear reciprocating tribo-test and I found ASTM C1624 - 05 for the first and ASTM G133 - 05 for the second. However, I am not sure if these standards are applicable to a double layer coatings as in my system.
Are there some specific standard tribological tests for multilayer coatings?
Thanks!