A review of stratified topography theory on interface mechanics
Tian Xie, Ting Xie, Songtao Hu · Surface Topography Metrology and Properties · 2025
Abstract As the fingerprint of a component, surface is the basis of interface mechanics research on contact, friction, wear, emission and wetting, etc. Researchers are used to understanding surface topography from a classical single-stratum perspective, while a few inspired by two-process machined surfaces have proposed the stratified topography theory and even have further extended it to worn surfaces. In this review, we introduce how the stratified topography theory reshapes the topography understanding from modeling, characterization, to simulation. We then provide a comprehensive review on interface mechanics related to the stratified topography theory in terms of contact, friction, wear, emission, and wetting. Also, we propose potential research directions for further in-depth exploration. This review aims to provide theoretical and engineering guidance for interface mechanics, as well as for related fields such as surface engineering.