Application of a stochastic modelling framework to characterize the influence of different oxide scales on the solid particle erosion behaviour of boiler grade steel

Das, Suchandan K (2011) Application of a stochastic modelling framework to characterize the influence of different oxide scales on the solid particle erosion behaviour of boiler grade steel. Sadhana, 36 (4). pp. 425-440.

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Abstract

An earlier developed stochastic model has been applied to describe the relative rate of material loss from the steel surface subjected to simultaneous action of high tempe-rature oxidation involving multiple oxides and mechanical erosion. Different oxide scale growths, namely, nickel, iron and chromium have been treated deterministically and erosion is described using a literature based probabilis-tic framework. Oxidation is described with a power law (parabolic) approach to quantify the rate of growth of all the three oxide scales. In consonance with the published model, erosion is treated using a probabilistic method-ology as spatially random phenomena on the oxide surface. The concept of ‘erosion footprint’ has been incorporated in the present model to characterize the erosion-induced damage on the steel surface. The model has been applied to predict the relative material loss as a function of time resulted from erosion–oxidation interaction pertaining to nickel, iron and chromium oxides in dimensionless form. This investigation is expected to provide a quantitative understanding of relative material loss due to solid particle erosion for oxide scales, (composed of multiple oxides) formed on the steel components of coal-fired boilers

Item Type:Article
Official URL/DOI:http://eprints.nmlindia.org/3945
Uncontrolled Keywords:Stochastic modelling, erosion-oxidation interaction; oxidation kinetics; erosion footprint; scale thickness; gamma function
Divisions:Mathematical Modelling and Simulation
ID Code:3945
Deposited By:Sahu A K
Deposited On:14 Sep 2011 18:03
Last Modified:07 Aug 2015 14:16
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