Thick laser coatings: a review

摘要

This article describes the applications of lasers in coating deposition processes. After an introduction concerning the types and principal characteristics of the laser and the emitted light beams, a description of the mechanism of interactionbetween a laser beam with typical coating materials is presented. The typical laser treatment processes are depicted, and their characteristics are shown. Recent papers on coatings produced in one-step and two-step laser deposition are reviewed. Finally,the emerging applications of laser processes in thermal spray coatings are discussed.