Evaluation of the resistance of corrosion-proof steels to corrosion cracking in hydrogen sulfide solutions |
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Authors: | H. Krutsan O. Radkevych R. Melekhov R. Yurkevych |
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Affiliation: | (1) Karpenko Physicomechanical Institute, Ukrainian Academy of Sciences, Lviv |
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Abstract: | We study the tendency of corrosion-proof steels of the martensitic, martensite-ferritic, austenitic, austenite-martensitic, and ferrite-austenitic classes to corrosion cracking in hydrogen-sulfide-containing media. We have established that austenitic chromium-nickel-molybdenum (08Kh17N15M13T and 10Kh17N13M2T) and ferrite-austenitic (12Kh21N5T and 02Kh22N6AM3 steels are the most resistant to fracture: the threshold stresses in NACE solution (5% NaCl solution + 0.5% CH3 COOH saturated with H2S, 20±2°C, pH ∼ 3) are not less than 90% of the yield point. __________ Translated from Fizyko-Khimichna Mekhanika Materialiv, Vol. 41, No. 6, pp. 103–107, November–December, 2005. |
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