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OUYANG Yuqing, HUANG Yuhui, WENG Shuo, XUAN Fuzhen. Galvanic corrosion behavior of nuclear steam turbine welded joint in chloride environment[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(6): 153-160. DOI: 10.12073/j.hjxb.2019400171
Citation: OUYANG Yuqing, HUANG Yuhui, WENG Shuo, XUAN Fuzhen. Galvanic corrosion behavior of nuclear steam turbine welded joint in chloride environment[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(6): 153-160. DOI: 10.12073/j.hjxb.2019400171

Galvanic corrosion behavior of nuclear steam turbine welded joint in chloride environment

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  • Received Date: March 09, 2018
  • To investigate the effect of geometry of welded joint on the galvanic corrosion behavior, the macroscopic electrochemical experiments, scanning vibrating electrode technique (SVET) and immersion tests were used to study the galvanic corrosion behavior of welded joint of 25Cr2Ni2MoV rotor steel in the chloride solution. The results indicate that the corrosion potential of the WM is the lowest and the corrosion current density is the highest. That is to say, the WM is the anodic region which is prior to be corroded while the BM and the HAZ are the cathodic region which are protected. The infinite focus microscope (IFM) and scanning electron microscope (SEM) were used to further observe the morphology of the specimen surfaces. It is found that the effect of galvanic corrosion is more significant with the increase of welded joint size, but when the joint size increases to a certain extent, the galvanic corrosion effect is weakened.
  • 乔尚飞,沈红卫,刘霞,等.窄间隙焊接技术在600 MW汽轮机低压转子上的应用[J].热力透平, 2008, 37(4):250-252 Qiao Shangfei, Shen Hongwei, Liu Xia, et al. Application of narrow gap welding technology on low pressure rotor of 600 MW steam turbine[J]. Thermal Turbine, 2008, 37(4):250-252
    王朋,霍鑫,丁玉明.核电汽轮机焊接转子技术发展综述[J].热力透平, 2015, 44(4):296-299 Wang Peng, Huo Xin, Ding Yuming. A summary of the development of the welding rotor technology for nuclear steam turbine[J]. Thermal Turbine, 2015, 44(4):296-299
    Yin Z F, Yan M L, BaiI Z Q, et al. Galvanic corrosion associated with SM 80SS steel and Ni-based alloy G3 couples in NaCl solution[J]. Electrochimica Acta, 2008, 53(22):6285-6292.
    李维锋,孙紫麾,陈英,等.碳钢管线焊接接头的电偶腐蚀行为研究[J].焊接技术, 2016, 46(7):19-21 Li Weifeng, Sun Zihui, Chen Ying, et al. Study on galvanic corrosion behavior of welded joint of carbon steel pipeline[J]. Welding Technology, 2016, 46(7):19-21
    Wei J S, Qi Y C, Tian Z L. Corrosion behavior of welded joints for cargo oil tanks of crude oil carrier[J]. Journal of Iron And Steel Research, International, 2016, 23(9):955-962.
    Song G, Johannesson B, Hapugoda S, et al. Galvanic corrosion of magnesium alloy AZ91D in contact with an aluminium alloy, steel and zinc[J]. Corrosion Science, 2004, 46(4):955-977.
    Oh S K, Kim Y J, Jung K M, et al. Effects of temperature and operation parameters on the galvanic corrosion of Cu coupled to Au in organic solderability preservatives process[J]. Metals and Materials International, 2017, 23(2):290-297.
    Hasan B O. Galvanic corrosion of carbon steel-brass couple in chloride containing water and the effect of different parameters[J]. Journal of Petroleum Science and Engineering, 2014, 124:137-145.
    Luo L H, Huang Y H, Weng S, et al. Mechanism-related modelling of pit evaluation in the CrNiMoV steel in simulated environment of low pressure nuclear steam turbine[J]. Materials and Design, 2016, 105:240-250.
    Weng S, Huang Y H, Xuan F Z. Correlation between Microstructures, Hardness and Corrosion of Welded Joints of Disc Rotors[C]//14th International Conference On Pressure Vessel Technology. Shanghai:Procedia Engineering, 2015:1761− 1769.
    Coelho L B, Mouanga M, Druart M E, et al. A SVET study of the inhibitive effects of benzotriazole and cerium chloride solely and combined on an aluminium/copper galvanic coupling model[J]. Corrosion Science, 2016, 110:143-156.
    Zhu J, Xu L, Feng Z, et al. Galvanic corrosion of a welded joint in 3Cr low alloy pipeline steel[J]. Corrosion Science, 2016, 111:391-403.
    Zhu M L, Xuan F Z. Correlation between microstructure, hardness and strength in HAZ of dissimilar welds of rotor steels[J]. Materials Science and Engineering A, 2010, 527:4035-4042.
    Li Y T, Du Z Y, Tao Y Y. Effect of Mn and MnS on corrosion properties of domestic pipeline steels and welds[J]. China Welding, 2004, 13(2):123-127.
    谢建平,李颖,王书强.化学成分对不锈钢在5% H2SO4溶液中均匀腐蚀性能的影响[J].铸造技术, 2017, 38(4):823-825 Xie Jianping, Li Ying, Wang Shuqiang. The effect of chemical components on the uniform corrosion of stainless steel in 5% H2SO4 solution[J]. Foundry Engineering, 2017, 38(4):823-825
    Garcia C, MartinN F, Tiedra P D, et al. Pitting corrosion of welded joints of austenitic stainless steels studied by using an electrochemical minicell[J]. Corrosion Science, 2008, 50(4):1184-1194.
    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 Chaoyang, Lu Yongxin, et al. Analysis of corrosion behavior of carbon steel weld joint[J]. Transactions of the China Welding Institution, 2018, 39(1):97-101
    曹楚南.腐蚀电化学原理[M].北京:化学工业出版社, 2008.
    Stenta A, Basco S, Smith A, et al. One-dimensional approach to modeling damage evolution in galvanic corrosion[J]. Corrosion Science, 2014, 88(6):36-48.
    郝献超,苏鹏,肖葵,等.不同NaCl浓度对耐候钢腐蚀产物的影响[J].腐蚀与防护, 2009, 30(5):297-299 Hao Xianchao, Su Peng, Xiao Kui, et al. Effect of different concentration of NaCl solution on corrosion products of weathering steel[J]. Corrosion Protection, 2009, 30(5):297-299
    王建军,郭小丹,郑文龙,等.海洋大气暴露3年的碳钢与耐候钢表面锈层分析[J].腐蚀与防护, 2002, 23(7):288-291 Wang Jianjun, Guo Xiaodan, Zheng Wenlong, et al. Analysis of surface rust layer on carbon steel and weathering steel exposed to ocean atmosphere for 3 years[J]. Corrosion Protection, 2002, 23(7):288-291
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