The Effects of KCl, NaCl and K2CO3 on the High-Temperature Oxidation Onset of Sanicro 28 Steel

Influence of Preoxidation on High-Temperature Corrosion of a FeCrAl Alloy Under Conditions Relevant to Biomass Firing

“…In literature, it is noted that the initiation steps of corrosion under biomass firing conditions involves direct reaction between the corrosive species and the material (or oxide) [7,55,56]. In this respect, the reaction between Cr2O3-rich oxides and KCl depletes an alloy of Cr and causes the formation of a less protective Cr-depleted oxide.…”

Effect of austenitic stainless steel cladding on the high-temperature oxidation resistance of Ferritic 2.25Cr-1Mo (Grade 22) steel using SMAW process

“…To make this possible while maintaining a reasonable lifetime of the boiler equipment, it is necessary to understand the underlying mechanisms of the rapid corrosion of low-alloy steels necessitating a better understanding of the effect of existing corrosive species. There are a few essays that closely investigate the influence of some elements such as chlorine-containing composites, particularly alkali chlorides [30], on high-temperature corrosion of low-alloy steels [31], pure iron [32], and stainless steels [33].…”

High-Temperature Corrosion of P91/T91, 304l, Sanicro 28 and Inconel 625 Exposed at 600 °C Under Continuous Kcl Deposition

“…The resulting flue gas consists mainly of water vapor, CO 2 , hydrogen chloride and especially alkali chlorides [2][3][4]. Alkali chlorides are known for their corrosiveness towards superheater tubes [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21]. The current trend in utilizing more and more agricultural and forestry residues, waste wood, and other waste fractions instead of clean biomass (e.g., wood chips and wood pellets) makes this issue even more pronounced.…”

“…The "chromate formation" mechanism [6,7,[9][10][11]13,15,17,18,20,21,27] where the alkali initiates the corrosion attack of chromia forming steels, deteriorating the protective chromium-rich layer by the formation of alkali chromate. As the primary protection is lost, the resulting secondary oxide scale formed constitutes the steel's ability to withstand further corrosion.…”