It is established that structural inhomogeneity of 20-KSKh steel rolled product produced in the casting and rolling complex at OMK-Stal is caused by presence of bainitic areas within a ferrite-pearlite matrix. Differences in this inhomogeneity are shown due to banding of the ferrite-pearlite structure, determined according to GOST 5640. A method is proposed for evaluating the degree of structural inhomogeneity (banding number) containing bainitic areas. Comprehensive corrosion tests are performed for specimens with “bainitic” and ferrite-pearlite banding. It is established that specimens with “bainitic” banding exhibit better corrosion resistance.
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Translated from Metallurg, No. 9, pp. 38–45, September, 2015.
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Rodionova, I.G., Zaitsev, A.I., Baklanova, O.N. et al. Effect of Carbon Steel Structural Inhomogeneity on Corrosion Resistance in Chlorine-Containing Media. Metallurgist 59, 774–783 (2016). https://doi.org/10.1007/s11015-016-0173-2
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DOI: https://doi.org/10.1007/s11015-016-0173-2