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基于电化学方法5Cr钢熔化焊接头CO2腐蚀行为

刘方,周广涛,吴世凯,苏礼季,陈梅峰

刘方,周广涛,吴世凯,苏礼季,陈梅峰. 基于电化学方法5Cr钢熔化焊接头CO2腐蚀行为[J]. 焊接学报, 2019, 40(1): 131-136. DOI: 10.12073/j.hjxb.2019400026
引用本文: 刘方,周广涛,吴世凯,苏礼季,陈梅峰. 基于电化学方法5Cr钢熔化焊接头CO2腐蚀行为[J]. 焊接学报, 2019, 40(1): 131-136. DOI: 10.12073/j.hjxb.2019400026
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LIU Fang, ZHOU Guangtao, WU Shikai, SU Liji, CHEN Meifeng. Study on CO2 corrosion behavior of 5Cr steel fusion welded joint based on electrochemical method[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(1): 131-136. DOI: 10.12073/j.hjxb.2019400026
Citation: LIU Fang, ZHOU Guangtao, WU Shikai, SU Liji, CHEN Meifeng. Study on CO2 corrosion behavior of 5Cr steel fusion welded joint based on electrochemical method[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(1): 131-136. DOI: 10.12073/j.hjxb.2019400026
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基于电化学方法5Cr钢熔化焊接头CO2腐蚀行为

Study on CO2 corrosion behavior of 5Cr steel fusion welded joint based on electrochemical method

摘要

    摘要
  • 摘要: 为了获得5Cr钢熔化焊焊接接头的动态腐蚀特性，采用基于电极电位的电化学方法进行5Cr钢焊接接头耐CO2腐蚀行为的研究，建立了基于极化曲线下的腐蚀模型，研究了不同填充材料的焊接接头的耐腐蚀性. 研究发现，在温度为40 ℃，CO2分压为10个大气压等加速腐蚀条件下，低铬焊丝的焊缝区域的自腐蚀电位最正，腐蚀速率最小，高铬焊丝的焊缝区域的自腐蚀电位较正，腐蚀速率较小，无铬焊丝的焊缝自腐蚀电位最负，腐蚀速率最大. 对比只反应腐蚀前后质量变化的失重法，电化学方法反映了腐蚀周期任一时刻的动态腐蚀速率，基于电化学腐蚀模型下的腐蚀速率与失重法测量结果相吻合. 验证了电化学腐蚀模型的正确性. 结果表明，低铬钢匹配适当的低铬焊丝可使得焊接接头具有较强的耐CO2腐蚀性能.
    Abstract: In order to obtain the dynamic corrosion characteristics of 5Cr steel welded joints for fusion welding, the CO2 corrosion resistance behavior of these joints was studied by using electrochemical method based on electrode potential. The corrosion model based upon polarization curve was established and the corrosion resistance of welded joints with different fillers was studied. It was found that under the accelerated corrosion conditions of temperature 40 °C and CO2 partial pressure 10 atm, the corrosion potential of low-chromium welding wire was the most positive and the corrosion rate was the least. For high-chromium and non-chromium welding wire, corrosion potential was the more positive and the most negative, respectively. Then corrosion rate of non-chromium fillers was the highest. Compared with weight-loss method which only shows mass change before and after corrosion, the electrochemical method is concerned with the dynamic corrosion rate at any time of the corrosion cycle. The corrosion rate based on the electrochemical corrosion model showed good agreement with the results of the weight-loss method. The correctness of the electrochemical corrosion model is validated. The results showed that 5Cr steel welded joint with the match of suitable low chromium welding wire could have stronger CO2 corrosion resistance.
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  • [1] 王献昉, 董振江, 梁拥军, 等. 经济型低Cr抗CO2腐蚀合金石油管材钢开发现状[J]. 腐蚀科学与防护技术, 2006, 18(6): 436 ? 439
    Wang Xianfang, Dong Zhenjiang, Liang Yongjun, et al. Development of economic steels with low Cr content for anti-corrosion oil tube[J]. Corrosion Science and Protection Technology, 2006, 18(6): 436 ? 439
    [2] Hu Meijuan, Wang Peng, Chi Qiang, et al. Microstructure and properties of HAZ for X100 pipeline steel[J]. China Welding, 2016, 25(1): 77 ? 80.
    [3] Li Yuntao, Du Zeyu, Tao Yongyin, et al. Study of microstructures and properties for girth welding of domestic X70 pipeline steels[J]. China Welding, 2008, 17(2): 63 ? 66.
    [4] 徐连勇, 亢朝阳, 路永新, 等. 碳钢焊接接头腐蚀行为分析[J]. 焊接学报, 2018, 39(1): 97 ? 101
    Xu Lianyong, Kang Zhaoyang, Lu Yongxin, et al. Corrosion behavior analysis of welded joints of carbon steel[J]. Transactions of the China Welding Institution, 2018, 39(1): 97 ? 101
    [5] 刘立甫, 武会宾, 王立东, 等. Q125级1%Cr套管钢焊接接头CO2腐蚀行为[J]. 材料热处理学报, 2014, 35(2): 57 ? 62
    Liu Lifu, Wu Huibin, Wang Lidong, et al. CO2 corrosion behavior of weld joint of Q125 grade tube steel containing 1% Cr[J]. Transactions of Materials and Heat Treatment, 2014, 35(2): 57 ? 62
    [6] 张 雷, 胡丽华, 路民旭, 等. 抗CO2腐蚀低Cr管线钢组织和性能研究[J]. 材料工程, 2009(5): 6 ? 10
    Zhang Lei, Hu Lihua, Lu Minxu, et al. Microstructure and properties of CO2 corrosion resistant low Cr pipeline steels[J]. Journal of Materials Engineering, 2009(5): 6 ? 10
    [7] 武会宾, 刘立甫, 王立东, 等. Q125级套管钢高频电阻焊接头耐CO2/H2S腐蚀行为[J]. 焊接学报, 2013, 34(10): 17 ? 21
    Wu Huibin, Liu Lifu, Wang Lidong, et al. Corrosion behavior of high frequency resistance welding joint of Q125 grade tube steel under CO2/H2S environment[J]. Transactions of the China Welding Institution, 2013, 34(10): 17 ? 21
    [8] 黄安国, 李志远, 张国栋, 等. 低合金钢焊缝金属的腐蚀行为[J]. 焊接学报, 2005, 26(11): 30 ? 34
    Huang Anguo, Li Zhiyuan, Zhang Guodong, et al. Corrosion behavior of weld metal of low-alloy steel[J]. Transactions of the China Welding Institution, 2005, 26(11): 30 ? 34
    [9] 喻巧红, 刘 超, 庞晓露, 等. Q235焊接接头的缝隙腐蚀行为[J]. 金属学报, 2014, 50(11): 1319 ? 1326
    Yu Qiaohong, Liu Chao, Pang Xiaolu, et al. Crevice corrosion behavior of Q235 weld joint[J]. Acta Metallurgica Sinica, 2014, 50(11): 1319 ? 1326
    [10] Gharavi F, Matori KA, Yunus R, et al. Corrosion behavior of Al6061 alloy weldment produced by friction stir welding process[J]. Journal of Materials Research & Technology, 2015, 4(3): 314 ? 322.
    [11] 张 华, 崔 冰, 林三宝, 等. 7050铝合金搅拌摩擦焊接头腐蚀行为分析[J]. 焊接学报, 2018, 39(7): 71 ? 74
    Zhang Hua, Cui Bing, Lin Sanbao, et al. Corrosion behavior of friction stir welded joints of 7050 aluminum alloy[J]. Transactions of the China Welding Institution, 2018, 39(7): 71 ? 74
    [12] Razak N A A, Ng S S. Investigation of effects of MIG welding on corrosion behaviour of AISI 1010 carbon steel[J]. Applied Spectroscopy, 2014, 7(1): 1168 ? 1178.
    [13] 武会宾, 刘跃庭, 王立东, 等. Cr含量对X120级管线钢组织及耐酸性腐蚀性能的影响[J]. 材料工程, 2013(9): 32 ? 37
    Wu Huibin, Liu Yueting, Wang Lidong, et al. Influence of Cr content on microstructures and acid corrosion of X120 grade pipeline steel[J]. Journal of Materials Engineering, 2013(9): 32 ? 37
    [14] 曹楚南. 腐蚀电化学原理[M]. 北京: 化学工业出版社, 1985.
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  • 收稿日期:  2018-10-25

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