AN APPROACH TO MODELING EROSION-CORROSION OF ALLOYS USING EROSION-CORROSION MAPS

A model has been developed to establish the boundaries on erosion-corr osion maps, where increases in erosion and corrosion are represented b y increases in velocity and temperature respectively. The maps show th e transitions through the regimes as functions of the main erosion-cor rosion variables. The effects of additional parameters such as alloy c orrosion resistance and particle flux on the transition boundaries on the maps are simulated in the model. This paper outlines the prelimina ry work which has been carried out on the mathematical algorithms used to calculate the transition boundaries. The variations in the locatio n of the boundaries with target and particles properties are illustrat ed. Future development of the maps is discussed in terms of extension of the erosion-corrosion algorithms, and applications to in-service er osion-corrosion problems.