合金元素和碳含量对E36船板钢腐蚀行为的影响
Effect of Alloy Element and Carbon Content on Corrosion Behavior of E36 Ship Plate Steel
摘 要
采用失重法、扫描电镜、极化曲线、电化学阻抗谱(EIS)等技术研究了E36级别低合金船板钢在高浓度Cl-环境中的腐蚀行为; 综合评定了不同碳含量和合金成分对E36钢在10%NaCl酸性溶液中耐腐蚀性能的影响。结果表明, 超低碳钢(0.048%)的腐蚀速率低于低碳钢(0.1%); 添加铬元素的1#钢腐蚀速率低于未加铬的2#钢, 但添加铬元素同时碳含量较高的3#钢, 腐蚀速率最大。这表明在低铬范围内, 添加铬元素对耐腐蚀性能的提高不及降低碳元素来的明显。
碳含量
E36船板钢
高浓度氯离子
腐蚀行为
alloy element
carbon content
E36 ship plate steel
high concentration of Cl-
corrosion behavior
Abstract
The corrosion behavior of E36 ship plate steel with different carbon contents and alloying element contents was investigated in solution with high concentration of Cl- (10%) by weight loss method,polarization curve, electrochemical impedance spectroscopy (EIS) and SEM. The results show that the corrosion rate of ultralow carbon steel was lower than that of low carbon steel, the corrosion rate of ultralow carbon steel with adding Cr element (1#) was lower than that of 2# without Cr, while the conosion rate of 3# with adding Cr and increasing carbon content together was maximum. It shows that in low chromium range, decreasing the content of C is more effective than increasing the content of Cr.
中图分类号 TG174
所属栏目 试验研究
基金项目
收稿日期 2012/7/23
修改稿日期
网络出版日期
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备注毛红艳, 硕士研究生,
引用该论文: MAO Hong-yan,CAI Qing-wu,WU Hui-bin,SUN Chao-fan,LIANG Jin-ming,ZHOU Hong-bao. Effect of Alloy Element and Carbon Content on Corrosion Behavior of E36 Ship Plate Steel[J]. Corrosion & Protection, 2013, 34(6): 499
被引情况:
【1】徐一龙,韦龙贵,刘智勤,孙爱平,林 军,薛 艳,李 婷,张家梅,张晓东,雷 丹, "注水海底管道穿孔原因分析",腐蚀与防护 37, 683-687(2016)
【2】韩新德,王洪兵,王建宁,谢唯一,王少波,胡松青, "封隔器用两种铬钼钢在服役条件下的腐蚀行为",腐蚀与防护 37, 904-907(2016)
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参考文献
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【3】Shiomi H, Kaneko M, et al. Development of anti-corrosion steel for cargo oil tanks[C]//TSCF 2007 Shipbuilder Meeting. Busan:[s.n.],2007: 1.
【4】陶乃旺,黄淑珍,黄宏刚.IMO油船货油舱涂层及耐蚀钢试验方法及性能要求[J].中国涂料,2011,26(10):24-27.
【5】张恒,常万顺,陈学群.碳钢及低合金钢点蚀性能的研究[J].腐蚀研究,2009,23(2):14-16.
【6】管明荣.Cl-离子对孔蚀的作用机理[J].济南大学学报,1997,7(3):62-64.
【7】Kashina K,Tanino Y,Kubo S,et al. Developmet of corrosion resistant steel for cargo oil tanks[C]//Shipbuilder Technology ISST 2007. Osaka:[s.n.],2007:21-36.
【8】杨德钧,沈卓身.金属腐蚀学[M].北京:冶金工业出版社.1999.
【9】Yoon-Seok Choi, Jae-Joo Shim, Jung-Gu Kim, et al. Corrosion behavior of low alloy steels containing Cr, Co and W in synthetic potable water[J].Materials Science and Engineering,2004,385(1):153-155.
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