Corrosion resistant material for reduced fouling, heat transfer component with improved corrosion and fouling resistance, and method for reducing fouling

摘要

A heat transfer component that is resistant to corrosion and fouling is disclosed. The heat transfer component includes a heat exchange surface formed from a chromium-enriched oxide containing material formed from the composition , , and , wherein is a steel containing at least about 5 to about 40 wt. % chromium, is a chromium enriched oxide (M3O4 or M2O3 or mixtures thereof) formed on the surface of the steel , wherein M is a metal containing at least 5 wt. % Cr based on the total weight of the metal M, and is a top layer formed on the surface of the chromium-enriched oxide , comprising sulfide, oxide, oxysulfide, and mixtures thereof. The top layer comprises iron sulfide (Fe1-xS), iron oxide (Fe3O4), iron oxysulfide, iron-chromium sulfide, iron-chromium oxide, iron-chromium oxysulfide, and mixtures thereof. The metal M of the chromium enriched oxide (M3O4 or M2O3 or mixtures thereof) may comprise Fe, Cr, and constituting elements of the steel . The steel may be selected from low chromium steels, ferritic stainless steels, martensitic stainless steels, austenitic stainless steels, duplex stainless steels and precipitation-hardenable alloys.