A Probabilistic Model to Characterize Erosion-Oxidation Damage on Boiler Grade Steel Impacted by Solid Particle

A probabilistic model based methodology has been applied to describe the relative rate of
material lossfrom the steel suiface subjected to simultaneous action of high temperature
oxidation and mechanical erosion. Growth of the oxide scales is treated deterministically
and erosion is described using an established probabilistic modeling methodology. Oxidation
is described with a parabolic growth law to quantify the rate of growth of the
oxide scales, namely, nickel, iron, and chromium, respectively. In consonance with the
published model, erosion is treated using a probabilistic methodology as spatially random
phenomena on the oxide suiface. The model has been applied to predict the relative
erosive loss of material as a function of time resulted as a consequence of influence
oxidation on mechanical erosion in a synergetic manner.