The Hardness Control in the Coated Surface Layer

Abstract

This paper wants to find one of the solutions to control the coated surface properties. The surface layers control is not easy. We have a very simple test like hardness test to get some important information of the surface, but in case of the coatings we need to do this test very circumspectly. The hardness test results always depend on the surface roughness, the coating microstructure, the layer thickness and the type and load of the hardness test. The chose method was the nanohardness test which gave the penetration depth us function of the very small load.