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Atmospheric corrosion of carbon steels in tropical and subtropical climates in Southern China
Materials and Corrosion ( IF 1.6 ) Pub Date : 2020-01-31 , DOI: 10.1002/maco.201911487 Juncong Huang 1 , Xiaobo Meng 2 , Yinhui Huang 1 , Wubin Jiang 3 , Ri Chen 1 , Zhijun Zheng 3 , Yan Gao 1
Materials and Corrosion ( IF 1.6 ) Pub Date : 2020-01-31 , DOI: 10.1002/maco.201911487 Juncong Huang 1 , Xiaobo Meng 2 , Yinhui Huang 1 , Wubin Jiang 3 , Ri Chen 1 , Zhijun Zheng 3 , Yan Gao 1
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Q235 and Q345 carbon steels were exposed for up to 24 months at three test sites of tropical and subtropical climate. The atmospheric corrosion kinetics of Q235 and Q345 was studied by weight‐loss measurement. The results show that the ranking of the atmospheric corrosivity from weak to strong of the three test sites is Xishuangbanna, Guangzhou, and Wanning. The kinetics of the atmospheric corrosion process presents two stages with an accelerated second stage in marine environments of high chloride ion content and high relative humidity, whereas no second stage appears in the kinetics curves in rural and industrial urban environments. The corrosion acceleration stage in the marine environment of the Wanning site is attributed mainly to the high chloride ion concentration and loose rust layer structure.
中文翻译：
南方热带和亚热带气候中碳钢的大气腐蚀
Q235和Q345碳钢在热带和亚热带气候的三个测试点暴露了长达24个月。通过减重测量研究了Q235和Q345的大气腐蚀动力学。结果表明，三个测试点的大气腐蚀性从弱到强依次为西双版纳，广州和万宁。在高氯离子含量和高相对湿度的海洋环境中，大气腐蚀过程的动力学呈现两个阶段，第二阶段加速，而在农村和工业城市环境中，动力学曲线中没有第二阶段出现。万宁厂区海洋环境中的腐蚀加速阶段主要归因于氯离子浓度高和锈层结构疏松。
更新日期：2020-01-31
中文翻译：
南方热带和亚热带气候中碳钢的大气腐蚀
Q235和Q345碳钢在热带和亚热带气候的三个测试点暴露了长达24个月。通过减重测量研究了Q235和Q345的大气腐蚀动力学。结果表明，三个测试点的大气腐蚀性从弱到强依次为西双版纳，广州和万宁。在高氯离子含量和高相对湿度的海洋环境中，大气腐蚀过程的动力学呈现两个阶段，第二阶段加速，而在农村和工业城市环境中，动力学曲线中没有第二阶段出现。万宁厂区海洋环境中的腐蚀加速阶段主要归因于氯离子浓度高和锈层结构疏松。
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