Functional correlation surface texture / grip of a deposit: case of NiP

Abstract

This work studies a functional correlation between different texture parameters and the
adherence of NiP coating on a metal substrate. Multiple surfaces with different milling feed rate and
coated with NiP went through a pulloff adhesion test. This study determined through texture analysis
functional correlation between characterization of surface topographies and the strength measured
during the test. In order to study if a multi-scale approach improve the correlation, a “conventional”
method based on ISO 25178 procedure and a multiscale method based on wavelet filtering are
compared.