High-Temperature Corrosion of T92 Steel in N2/H2O/H2S-Mixed Gas

The ASTM T92 steel was corroded at 600 oC and 800 oC at 1 atm of N2/3.1%H2O/2.42%H2S-mixed gas. The formed scales were thick and fragile. They consisted primarily of the outer FeS scale and the inner(FeS, FeCr2S4)-mixed scale containing a small amount of the Cr2O3 scale. This indicated that corrosio...

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Veröffentlicht in:Corrosion science and technology 2016, 15(3), , pp.125-128
Hauptverfasser: Yuke Shi, 이동복, 김민정, 박순영, M. Ali Abro, Poonam Yadav
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Sprache:eng
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Zusammenfassung:The ASTM T92 steel was corroded at 600 oC and 800 oC at 1 atm of N2/3.1%H2O/2.42%H2S-mixed gas. The formed scales were thick and fragile. They consisted primarily of the outer FeS scale and the inner(FeS, FeCr2S4)-mixed scale containing a small amount of the Cr2O3 scale. This indicated that corrosionoccurred mainly via sulfidation rather than oxidation due to the H2S gas. Since FeS was present throughoutthe whole scale, T92 steel was non-protective, displaying high corrosion rates. KCI Citation Count: 0
ISSN:1598-6462
2288-6524
DOI:10.14773/cst.2016.15.3.125