光伏桩基用钢在新疆土壤中的腐蚀行为研究  

Corrosion Behavior in Soil of Xinjiang of Steels forPhotovoltaic Pile Foundation

作　　者：王刚 李昭 王涛 段腾 杜翠薇 WANG Gang;LI Zhao;WANG Tao;DUAN Teng;DU Cuiwei(TBEA Xinjiang SUNOASIS Co.,Ltd.,Urumqi 830011,China;Institute of Advanced Materials and Technology,University of Science and Technology Beijing,Beijing 100083,China)

机构地区：[1]特变电工新疆新能源股份有限公司,乌鲁木齐830011 [2]北京科技大学新材料技术研究院,北京100083

出　　处：《中国腐蚀与防护学报》2024年第4期987-992,共6页Journal of Chinese Society For Corrosion and Protection

摘　　要：采用扫描电镜(SEM)、能谱(EDS)以及X射线衍射(XRD)等技术对比分析了新疆某地区不同光伏桩基用钢在现场土壤及室内土壤加速环境下的腐蚀形貌及腐蚀产物,并且结合电化学实验对比研究了不同光伏桩基用钢在新疆土壤环境中的腐蚀行为。结果表明,对比其他两种耐蚀钢,Q355B普碳钢的腐蚀情况最严重;腐蚀产物主要为Fe的氧化物,包括α-FeOOH和γ-FeOOH;3种材料在相同的室内加速腐蚀条件下具有相同的加速比,其腐蚀机理与现场试样基本一致。Three kinds of steel used for photovoltaic pile foundation were buried in a selected site in Xinjiang area for 30 d,whilst the accelerated soil acceleration test was carried out in the laboratory for comparison in terms of their corrosion behavior.Then their corrosion morphology and corrosion products were characterized by means of scanning electron microscopy(SEM),energy dispersive spectroscopy(EDS)and X-ray diffraction(XRD),and the corrosion behavior of different photovoltaic pile steels in Xinjiang soil environment were compared by electrochemical tests.The results show that compared with the other two corrosion-resistant steels,the Q355B carbon steel suffers from the most serious corrosion.The corrosion products are mainly iron compounds composed ofα-FeOOH andγ-FeOOH.The three steels exhibit the same corrosion acceleration ratio in the accelerated corrosion tests with the same parameters,and their corrosion mechanism is basically the same as that of the real field corrosion test.

关 键 词：Q355B普碳钢 耐蚀钢 土壤腐蚀 加速腐蚀实验 光伏桩 

分 类 号：TG172.4[金属学及工艺—金属表面处理]