Laser Cleaning of Oxidised Metallic Materials: Role of the Optical Properties of the Oxide Films

摘要

In the present work, the effects of nanosecond pulsed laser irradiation on oxidised metallic surfaces were investigated, in order to estimate the possibility of using laser techniques for cleaning applications. After oxidation, the oxide layer developed on the metallic surfaces depends on the composition of the substrate and also on oxidation conditions. In this study a modelling system: pure Fe oxidised at 500 ℃, has been investigated. The influence of the optical properties of the oxide films on the removal mechanisms and the cleaning efficiency of the laser technique was illustrated by performing specific electrochemical treatments.