环境溶液对管道钢应力腐蚀过程电化学行为的影响

中国腐蚀与防护学报

2005, Vol. 25

Issue (1): 34-38

研究报告

本期目录 | 过刊浏览

环境溶液对管道钢应力腐蚀过程电化学行为的影响

闫茂成;翁永基

北京石油大学

EFFECTS OF ENVIRONMENTAL SOLUTIONS ON ELECTROCHEMICAL EHAVIORS RELATED TO SCC OF PIPE LINE STEELS

Maocheng Yan;Yongji Weng

北京石油大学

全文: PDF(155 KB)

摘要: 用快慢扫描极化测量等方法研究X70钢和16Mn钢在Na2CO3/NaHCO3溶液中电化学行为。分析溶液中NaHCO3浓度、PH、供氧状况及扫描速度等因素对极化曲线影响，并研究其饨化过程的各种电极反应。结果表明，管道钢在高浓度Na2CO3/NaHCO3溶液中阳极极化曲线含两个阳极峰和中间过渡区。较负的第一阳极峰电位和较大的峰电流有利SCC发生，而它们和较高HCO3-学度、适中pH范围（室温下6.7-11)和供氧不足的溶液环境相联系.

关键词 ：管道钢, Na2CO3/NaHCO3溶液, 电化学测量, 电极

Abstract：The electrochemical behaviors of X70 and 16Mn pipeline steels were studied in a range of CO32-/HCO3- solutions using the fast and slow sweep potentiodynamic polarization measurements and so on. Effects of the bicarbonate concentration,pH,oxygen concentration in the solution and the sweep rate et al.On the polarization curves were analyzed.The electrode reactions in passive process were also investigated.It was shown that the anodic polarization curves of steels in cincentrated CO32- / HCO3- solutions exhibited characteristic features,namely two oxidation peaks and an intermediate zone between. The situations with more negative potential of first oxidation peak and larger currents in first oxidation peak are likely to promote SCC.These situation are also linked to high concentration HCO3-,moderate pH range (6.7-11 at ambient temperature )and lack of oxygen in solutions.

Key words： pipe lime steels Na2CO3/NaHCO3solution electrochemical measurement electrode reaction stress corrosi

收稿日期: 2003-07-28

ZTFLH:

TG172.9

通讯作者: 闫茂成 E-mail: yan_maoch@sina.com

Corresponding author: Maocheng Yan E-mail: yan_maoch@sina.com

	服务

	把本文推荐给朋友
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	闫茂成
	翁永基
44.8K

引用本文:

闫茂成; 翁永基 . 环境溶液对管道钢应力腐蚀过程电化学行为的影响[J]. 中国腐蚀与防护学报, 2005, 25(1): 34-38 .
Maocheng Yan, Yongji Weng. EFFECTS OF ENVIRONMENTAL SOLUTIONS ON ELECTROCHEMICAL EHAVIORS RELATED TO SCC OF PIPE LINE STEELS. J Chin Soc Corr Pro, 2005, 25(1): 34-38 .

链接本文:

https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y2005/V25/I1/34

[1]McClureGM .Fieldfailureinvestigations[A ].SymposiumonPipelineResearch[C].Dallas,TX ,USA ,1965
[2]HusseinK ,ShaukatA ,HassanF .Corrosioncrackingofgascarryingpipelines[J].MaterialsPerformance,1988:13
[3]ParkinsRN .Areviewofstresscorrosioncrackingofhigh-pres suregaspipelines[A].Corrosion/2000[C].Houston,NACEinter nationalTx,2000,363
[4]YanMC ,WengYJ.Studyonlocalenvironmentevolutionunderdisbondedcoatingoncathodicprotectedpipelines[J].J .Chin.Soc.Corros.Prot.,2004,24(2):95-99(闫茂成,翁永基.阴极保护管线破损涂层下局部环境变化规律[J]中国腐蚀与防护学报,2004,24(2):95-99
[5]ZuoJY ,StressCorrosionCracking[M].Xi′an:PublishingCompanyofXi’anTrafficUniversity,1985:13,23(左景伊.应力腐蚀破裂[M ].西安:西安交通大学出版社,1985:13,23
[6]PilkeyAK ,LambertSB ,PlumtreeA .StresscorrosioncrackingofX60pipelinesteelinacarbonate-bicarbonatesolution[J].Corro sion,1995,51(2)
[7]ParkinsRN ,ZhouS .ThestresscorrosioncrackingofC -MnsteelinCO2-HCO-3-CO2-3solutions.II :electrochemicalandotherda da[J].Corros.Sci.,1997,39:175-191

[1]	刘威, 杜开发, 胡晓宏, 汪的华. 液态金属储能电池中常用液态金属腐蚀研究进展[J]. 中国腐蚀与防护学报, 2020, 40(2): 81-86.
[2]	王泽臣, 林君, 杨国卿, 梁尚清. 全氟磺酸膜对海洋电场电极抗腐蚀与电场响应性能影响的研究[J]. 中国腐蚀与防护学报, 2019, 39(6): 581-587.
[3]	王长罡,魏洁,魏欣,穆鑫,薛芳,董俊华,柯伟,李国平. 几种超级不锈钢在模拟烟气脱硫环境中的缝隙腐蚀行为研究[J]. 中国腐蚀与防护学报, 2019, 39(1): 43-50.
[4]	邓培昌, 刘泉兵, 李子运, 王贵, 胡杰珍, 王勰. X70管线钢在热带海水-海泥跃变区的腐蚀行为研究[J]. 中国腐蚀与防护学报, 2018, 38(5): 415-423.
[5]	孟凡帝, 刘莉, 李瑛, 王福会. 用于原位检测在深海并压力交变环境中有机涂层电化学阻抗的预埋微电极研究[J]. 中国腐蚀与防护学报, 2017, 37(6): 561-566.
[6]	张彭辉, 逄昆, 丁康康, 孔祥峰, 彭欣. 扫描振动电极技术在腐蚀领域的应用进展[J]. 中国腐蚀与防护学报, 2017, 37(4): 315-321.
[7]	陈亚林, 张伟, 王琦, 王佳. WBE技术研究水线区破损涂层的剥离机制-II[J]. 中国腐蚀与防护学报, 2017, 37(4): 322-328.
[8]	王晓霖, 闫茂成, 舒韵, 孙成, 柯伟. 破损涂层下管线钢的交流电干扰腐蚀行为[J]. 中国腐蚀与防护学报, 2017, 37(4): 341-346.
[9]	陈洁净,鞠虹,孙灿,李霞,刘雲飞. 电化学测试技术在垢下腐蚀中的应用[J]. 中国腐蚀与防护学报, 2017, 37(3): 207-215.
[10]	程庆利,陶彬,刘栓,刘全桢,张卫华,田松柏,王立平. 原油沉积水对Q235B碳钢的腐蚀影响[J]. 中国腐蚀与防护学报, 2017, 37(2): 126-134.
[11]	丁健,张伟,王佳,陈亚林,尹鹏飞,张波. WBE技术研究水线区涂层劣化和涂层下金属腐蚀-I[J]. 中国腐蚀与防护学报, 2016, 36(5): 463-470.
[12]	冯林,王燕华,钟莲,王佳,李爱娇,金晓晓. 短期贮存对金属铜腐蚀电化学行为的影响[J]. 中国腐蚀与防护学报, 2016, 36(4): 375-380.
[13]	陈亚林,张伟,丁葵英,王佳,尹鹏飞,董彩常,杨万国. WBE技术研究水线区破损涂层的剥离机制[J]. 中国腐蚀与防护学报, 2016, 36(1): 67-72.
[14]	王美清, 杨卫华, 蔡成杰, 林小燕, 付芳. 聚乙烯醇改性PbO₂电极的制备和性能研究[J]. 中国腐蚀与防护学报, 2015, 35(1): 81-85.
[15]	陈亚林, 张伟, 王伟, 王佳, 王琦, 蔡光旭. WBE技术研究水线区Q235碳钢腐蚀[J]. 中国腐蚀与防护学报, 2014, 34(5): 451-458.

Viewed

Full text

Abstract

Cited

Shared

Discussed