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Corrosion resistance and corrosion behavior of high‐copper‐bearing steel in marine environments
Materials and Corrosion ( IF 1.6 ) Pub Date : 2020-12-18 , DOI: 10.1002/maco.202012111 Hongyu Liu 1 , Yingxue Teng 1 , Jing Guo 1, 2 , Na Li 1 , Jiaji Wang 2 , Ziting Zhou 1 , Shengli Li 1
Materials and Corrosion ( IF 1.6 ) Pub Date : 2020-12-18 , DOI: 10.1002/maco.202012111 Hongyu Liu 1 , Yingxue Teng 1 , Jing Guo 1, 2 , Na Li 1 , Jiaji Wang 2 , Ziting Zhou 1 , Shengli Li 1
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Thus far, research on the corrosion resistance of copper‐containing steel has been limited to Cu content of less than 1%, and the corrosion resistance of antibacterial Cu‐containing steel with Cu content above 3% has not been reported. In this study, 0Cu3 carbon steel (CS), 0Cr15Cu3 stainless steel (SS), and Q345 CS were investigated. The corrosion resistance and corrosive behavior of high‐copper (high‐Cu)‐bearing steel in a marine environment were examined by scanning electron microscopy, energy dispersive spectrometry, X‐ray diffraction, electrochemical impedance spectroscopy, and potentiodynamic polarization. Coupon test results showed that the Cu in the 0Cr15Cu3 SS and 0Cu3 CS can promote the formation of stable α‐FeOOH from γ‐FeOOH in the outer rust layers, and make the rust layers more thick and dense. In the electrochemical experiment, the impedance loop diameters and Rct values of the 0Cr15Cu3 SS and 0Cu3 CS were higher than those of Q345, while the Icorr was less than that of Q345, which indicates that the anticorrosion property of these two types of high‐Cu‐bearing steel was higher than that of Q345. The aim of this study was to define the properties of corrosion resistance and corrosive behavior in high‐Cu‐bearing steels to promote their application in marine engineering.
中文翻译：
高铜钢在海洋环境中的耐腐蚀性和腐蚀行为
迄今为止，关于含铜钢的耐蚀性的研究仅限于铜含量小于1％，并且尚未报道含铜量大于3％的抗菌含铜钢的耐蚀性。在这项研究中，研究了0Cu3碳钢（CS），0Cr15Cu3不锈钢（SS）和Q345 CS。通过扫描电子显微镜，能量色散谱，X射线衍射，电化学阻抗谱和电势极化，检查了高铜（高铜）轴承钢在海洋环境中的耐腐蚀性和腐蚀行为。息票测试结果表明，0Cr15Cu3 SS和0Cu3 CS中的Cu可以促进外锈层中由γ-FeOOH形成稳定的α-FeOOH，并使锈层更厚，更致密。在电化学实验中0Cr15Cu3 SS和0Cu3 CS的R ct值均高于Q345，而I corr小于Q345，这表明这两种高轴承钢的耐蚀性均高于Q345 。 Q345。这项研究的目的是定义高含铜量钢的耐腐蚀性能和腐蚀行为，以促进其在海洋工程中的应用。
更新日期：2020-12-18
中文翻译：
高铜钢在海洋环境中的耐腐蚀性和腐蚀行为
迄今为止，关于含铜钢的耐蚀性的研究仅限于铜含量小于1％，并且尚未报道含铜量大于3％的抗菌含铜钢的耐蚀性。在这项研究中，研究了0Cu3碳钢（CS），0Cr15Cu3不锈钢（SS）和Q345 CS。通过扫描电子显微镜，能量色散谱，X射线衍射，电化学阻抗谱和电势极化，检查了高铜（高铜）轴承钢在海洋环境中的耐腐蚀性和腐蚀行为。息票测试结果表明，0Cr15Cu3 SS和0Cu3 CS中的Cu可以促进外锈层中由γ-FeOOH形成稳定的α-FeOOH，并使锈层更厚，更致密。在电化学实验中0Cr15Cu3 SS和0Cu3 CS的R ct值均高于Q345，而I corr小于Q345，这表明这两种高轴承钢的耐蚀性均高于Q345 。 Q345。这项研究的目的是定义高含铜量钢的耐腐蚀性能和腐蚀行为，以促进其在海洋工程中的应用。
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