Chromium-enriched oxide containing material and preoxidation method of making the same to mitigate corrosion and fouling associated with heat transfer components

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 compositionδ,ε, andζ, whereinζis a steel containing at least about 5 to about 40 wt. % chromium,εis a chromium enriched oxide (M3O4 or M2O3 or mixtures thereof) formed on the surface of the steelζ, wherein M is a metal containing at least 5 wt. % Cr based on the total weight of the metal M, andδis a top layer formed on the surface of the chromium-enriched oxideε, comprising sulfide, oxide, oxysulfide, and mixtures thereof. The top layerδcomprises 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 steelζ. The steelζmay be selected from low chromium steels, ferritic stainless steels, martensitic stainless steels, austenitic stainless steels, duplex stainless steels and precipitation-hardenable alloys.