特高压直流放电负向干扰条件下X80管线钢的氢脆敏感性
Hydrogen Embrittlement of X80 Pipeline Steel under Negative Interference of UHVDC Discharge Environment
摘 要
在含水量50%的广州土壤环境中对X80管线钢进行特高压直流接地极放电干扰-阴极保护模拟试验，并通过热脱附光谱（TDS）和慢应变速率试验（SSRT）研究干扰间隔及干扰频次对X80管线钢氢脆敏感性的影响。结果表明：干扰与阴极保护间隔条件下，进入X80管线钢内部的氢在干扰间隔期间会逸散，但间隔时间超过24 h后，材料内部的氢含量基本稳定，随干扰频次的增加，进入X80钢内部的氢含量增加，氢含量的变化主要以可扩散氢为主；随着干扰时长的延长，X80管线钢的断面收缩率和断后伸长率降低，材料的氢脆敏感性增加。
特高压直流
负向干扰
氢脆
X80 pipeline steel
ultra high voltage direct current (UHVDC)
negative interference
hydrogen embrittlement
Abstract
A simulation test of ultra high voltage direct current (UHVDC) ground electrode discharge interference and cathodic protection was conducted on X80 pipeline steel in Guangzhou soil environment with water content of 50%. The effects of interference interval and interference frequency on the hydrogen embrittlement sensitivity of X80 pipeline steel were studied by means of thermal desorption spectroscopy (TDS) and slow strain rate test (SSRT). The results show that under the condition of interference alternating with cathodic protection, the hydrogen entering the X80 pipeline steel escaped during the interval of interference, but the hydrogen content in the material was basically stable when the interval time exceeded 24 h. The hydrogen content in the X80 pipeline steel increased with the increase of interference frequency, and the change of hydrogen content was dominated by diffusible hydrogen. The percentage of reduction area and percentage elongation after fracture of X80 steel decreased with the increase of interference duration, indicating the increase of hydrogen embrittlement sensitivity of the material.
中图分类号 TG172.4 DOI 10.11973/fsyfh-202004006
所属栏目 试验研究
基金项目
收稿日期 2018/7/9
修改稿日期
网络出版日期
作者单位点击查看
引用该论文: LI Kai,GU Qinglin,JIANG Yongtao,CAO Guofei,MAO Jian,XIU Linran,XING Yunying,WANG Xiuyun,Lü Chao,WANG Jing. Hydrogen Embrittlement of X80 Pipeline Steel under Negative Interference of UHVDC Discharge Environment[J]. Corrosion & Protection, 2020, 41(4): 28
共有人对该论文发表了看法，其中：
人认为该论文很差
人认为该论文较差
人认为该论文一般
人认为该论文较好
人认为该论文很好
参考文献
【1】戚爱华. 我国油气管道运输发展现状及问题分析[J]. 国际石油经济,2009(12):57-59.
【2】杜至刚. 中国特高压电网发展战略规划研究[D]. 济南:山东大学,2008.
【3】李兴源. 高压直流输电系统[M]. 北京:科学出版社,2013.
【4】季寿宏. 直流输电系统接地极电流对管道腐蚀机理研究[D]. 成都:西南石油大学,2017.
【5】商善泽. 直流接地极接地电流对埋地金属管道腐蚀影响的研究[D]. 北京:华北电力大学,2016.
【6】HARDIE D,CHARLES E A,LOPEZ A H. Hydrogen embrittlement of high strength pipeline steels[J]. Corrosion Science,2006,48(12):4378-4385.
【7】ZHANG T M,ZHAO W M,GUO W,et al. Hydrogen permeation behavior through HSLA steels and its implications on hydrogen embrittlement susceptibility[J]. Applied Mechanics and Materials,2013,302(8):310-316.
【8】ELBOUJDAINI M,REVIE R W,ATTARD M. Effects of cathodic protection on cracking of high-strength pipeline steels[C]//Proceedings of the ASME International Pipeline Conference. Calgary:ASME,2010:683-697.
【9】王炳英,霍立兴,王东坡,等. X80管线钢在近中性pH溶液中的应力腐蚀开裂[J]. 天津大学学报,2007,40(6):757-760.
【10】LIANG P,LI X G,DU C W,et al. Stress corrosion cracking of X80 pipeline steel in simulated alkaline soil solution[J]. Materials and Design,2009,30(5):1712-1717.
【11】刘智勇,王长朋,杜翠薇,等. 外加电位对X80管线钢在鹰潭土壤模拟溶液中应力腐蚀行为的影响[J]. 金属学报,2011,47(11):1434-1439.
【12】谭志文,杜元龙,傅超,等. 阴极保护导致ZC-120钢在海水环境中氢脆[J]. 材料保护,1988,21(3):10-13.
【13】KIM S J,JANG S K,KIM J I. Electrochemical study of hydrogen embrittlement and optimum cathodic protection potential of welded high strength steel[J]. Metals and Materials International,2005,11:63-69.
【2】杜至刚. 中国特高压电网发展战略规划研究[D]. 济南:山东大学,2008.
【3】李兴源. 高压直流输电系统[M]. 北京:科学出版社,2013.
【4】季寿宏. 直流输电系统接地极电流对管道腐蚀机理研究[D]. 成都:西南石油大学,2017.
【5】商善泽. 直流接地极接地电流对埋地金属管道腐蚀影响的研究[D]. 北京:华北电力大学,2016.
【6】HARDIE D,CHARLES E A,LOPEZ A H. Hydrogen embrittlement of high strength pipeline steels[J]. Corrosion Science,2006,48(12):4378-4385.
【7】ZHANG T M,ZHAO W M,GUO W,et al. Hydrogen permeation behavior through HSLA steels and its implications on hydrogen embrittlement susceptibility[J]. Applied Mechanics and Materials,2013,302(8):310-316.
【8】ELBOUJDAINI M,REVIE R W,ATTARD M. Effects of cathodic protection on cracking of high-strength pipeline steels[C]//Proceedings of the ASME International Pipeline Conference. Calgary:ASME,2010:683-697.
【9】王炳英,霍立兴,王东坡,等. X80管线钢在近中性pH溶液中的应力腐蚀开裂[J]. 天津大学学报,2007,40(6):757-760.
【10】LIANG P,LI X G,DU C W,et al. Stress corrosion cracking of X80 pipeline steel in simulated alkaline soil solution[J]. Materials and Design,2009,30(5):1712-1717.
【11】刘智勇,王长朋,杜翠薇,等. 外加电位对X80管线钢在鹰潭土壤模拟溶液中应力腐蚀行为的影响[J]. 金属学报,2011,47(11):1434-1439.
【12】谭志文,杜元龙,傅超,等. 阴极保护导致ZC-120钢在海水环境中氢脆[J]. 材料保护,1988,21(3):10-13.
【13】KIM S J,JANG S K,KIM J I. Electrochemical study of hydrogen embrittlement and optimum cathodic protection potential of welded high strength steel[J]. Metals and Materials International,2005,11:63-69.
相关信息
