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Effect of Carbon Steel Structural Inhomogeneity on Corrosion Resistance in Chlorine-Containing Media

机译：碳钢结构不均匀性对含氯介质耐蚀性的影响

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摘要

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.
机译：可以确定的是，在OMK-Stal铸轧厂生产的20-KSKh钢轧制品的结构不均匀性是由于铁素体-珠光体基质中存在贝氏体区域引起的。由于根据GOST 5640确定的铁素体-珠光体结构的条带，显示了这种不均匀性的差异。提出了一种评估包含贝氏体区域的结构不均匀度（条带数）的方法。对带有“贝氏体”和铁素体-珠光体带的试样进行了全面的腐蚀测试。已经确定具有“贝氏体”带的样品表现出更好的耐腐蚀性。

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