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20钢与08碳钢的循环水腐蚀行为评价对比
引用本文:刘佐嘉,程学群,吕胜杰,李晓刚. 20钢与08碳钢的循环水腐蚀行为评价对比[J]. 中国腐蚀与防护学报, 2011, 0(4)
作者姓名:刘佐嘉  程学群  吕胜杰  李晓刚
作者单位:北京科技大学腐蚀与防护中心;中国石油化工股份有限公司石家庄炼化分公司机动处;
基金项目:国家自然科学基金项目(50871020)资助
摘    要:应用电化学和浸泡实验对比20钢与08碳钢在模拟循环冷却水中的耐蚀性,从实验结果得出08碳钢的耐蚀性能比20钢优异;由于在冷却水循环过程中金属表面形成的水膜层逐渐增厚可能使氯离子等侵蚀性离子积聚在表层难以扩散出去,导致腐蚀现象越来越严重,08碳钢中Cr含量比20钢高可能是08钢更耐蚀的原因之一。

关 键 词:极化  电化学阻抗  浸泡  20碳钢  08碳钢  

EVALUATION AND COMPARISON OF CORROSION BEHAVIOR ON 20 & 08 CARBON STEELS IN SIMULATED CIRCULATING COOLING WATER
LIU Zuojia,CHENG Xuequn,LV Shengjie,LI Xiaogang .Corrosion , Protection Centre,University of Science , Technology Beijing,Beijing ,.Equipment , Power Department,Shijiazhuang Refine & Chemical Company Limited,SINOPEC,Shijiazhuang. EVALUATION AND COMPARISON OF CORROSION BEHAVIOR ON 20 & 08 CARBON STEELS IN SIMULATED CIRCULATING COOLING WATER[J]. Journal of Chinese Society For Corrosion and Protection, 2011, 0(4)
Authors:LIU Zuojia  CHENG Xuequn  LV Shengjie  LI Xiaogang .Corrosion    Protection Centre  University of Science    Technology Beijing  Beijing   .Equipment    Power Department  Shijiazhuang Refine & Chemical Company Limited  SINOPEC  Shijiazhuang
Affiliation:LIU Zuojia~1,CHENG Xuequn~1,LV Shengjie~2,LI Xiaogang~1 1.Corrosion and Protection Centre,University of Science and Technology Beijing,Beijing 100083,2.Equipment and Power Department,Shijiazhuang Refine & Chemical Company Limited,SINOPEC,Shijiazhuang 050032
Abstract:Evaluated and compared with the corrosion resistance of 20 & 08 carbon steels by electrochemical and immersion experiments.It can be seen that the corrosion resistance of 08 carbon steel is greater than 20 carbon steel from the experiment results.More and more Cl~-which properly accumulated on the surface of pipeline and hard to diffuse from the steel when the water layer formed on the surface of metal become thicker, and then corrosion problem got worse.The content of Cr in 08 carbon steel is higher than 2...
Keywords:polarization  electrochemical impedance spectroscopy(EIS)  immersion  20 carbon steel  08 carbon steel  
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