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Improvement of the corrosion characteristics of 1.4713 ferritic steel in 0.1 M sulfuric acid by heat treatment and Al2O3–TiO2 coating
Materials and Corrosion ( IF 1.6 ) Pub Date : 2020-12-13 , DOI: 10.1002/maco.202012197 Dimitrije Stevanović 1 , Stevan P. Dimitrijević 2 , Željko Kamberović 3 , Vladimir Parežanin 4 , Silvana B. Dimitrijević 5
Materials and Corrosion ( IF 1.6 ) Pub Date : 2020-12-13 , DOI: 10.1002/maco.202012197 Dimitrije Stevanović 1 , Stevan P. Dimitrijević 2 , Željko Kamberović 3 , Vladimir Parežanin 4 , Silvana B. Dimitrijević 5
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This study addresses the influence of heat treatment and alumina coating on the corrosion of EN 1.4713 steel in 0.1 mol dm−3 sulfuric acid. The corrosion characteristics of three different samples are examined using the open circuit potential measurements, Tafel extrapolation, linear polarization resistance, weight-loss method, and electrochemical impedance spectroscopy. The results showed that the application of the weight-loss method yielded similar values to the electrochemical method in the first 24 h. A decrease in corrosion rate, in a similar manner, was observed for all three samples. The largest deacceleration was obtained for the alumina/titania-coated sample. It was obtained that the heat treatment significantly increased the corrosion resistance, but only in the first 24 h. The alumina/titania coating decreases the corrosion rate by approximately 30 times at the beginning of the corrosion exposure and by nearly 300 times after 240 h. This coating could have a significant influence on construction design, which uses ferritic stainless steel as the material.
中文翻译：
通过热处理和 Al2O3-TiO2 涂层改善 1.4713 铁素体钢在 0.1 M 硫酸中的腐蚀特性
本研究探讨了热处理和氧化铝涂层对 EN 1.4713 钢在 0.1 mol dm -3 中的腐蚀的影响硫酸。使用开路电位测量、Tafel 外推法、线性极化电阻、失重法和电化学阻抗谱来检查三种不同样品的腐蚀特性。结果表明，重量损失法的应用在前 24 小时内产生了与电化学法相似的值。对于所有三个样品，都以类似的方式观察到腐蚀速率的降低。氧化铝/二氧化钛涂层的样品获得了最大的减速。结果表明，热处理显着提高了耐腐蚀性，但仅限于前 24 小时。氧化铝/二氧化钛涂层在腐蚀暴露开始时将腐蚀速率降低了大约 30 倍，在 240 小时后降低了近 300 倍。
更新日期：2020-12-13
中文翻译：
通过热处理和 Al2O3-TiO2 涂层改善 1.4713 铁素体钢在 0.1 M 硫酸中的腐蚀特性
本研究探讨了热处理和氧化铝涂层对 EN 1.4713 钢在 0.1 mol dm -3 中的腐蚀的影响硫酸。使用开路电位测量、Tafel 外推法、线性极化电阻、失重法和电化学阻抗谱来检查三种不同样品的腐蚀特性。结果表明，重量损失法的应用在前 24 小时内产生了与电化学法相似的值。对于所有三个样品，都以类似的方式观察到腐蚀速率的降低。氧化铝/二氧化钛涂层的样品获得了最大的减速。结果表明，热处理显着提高了耐腐蚀性，但仅限于前 24 小时。氧化铝/二氧化钛涂层在腐蚀暴露开始时将腐蚀速率降低了大约 30 倍，在 240 小时后降低了近 300 倍。
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