外加电位对X80钢在南雄土壤模拟溶液中应力腐蚀行为的影响
Effect of Applied Potentials on Stress Corrosion Cracking of X80 Steel in Simulated Nanxiong Soil Solution
摘 要
采用动电位极化技术、慢应变速率拉伸(SSRT)试验和SEM形貌分析等方法, 研究了外加电位对X80钢在南雄土壤模拟溶液中的应力腐蚀破裂(SCC)行为的影响。结果表明, 在不同外加电位下, X80钢在土壤模拟溶液中呈现出不同的SCC敏感性。在-550 mV(SCE, 下同)阳极电位下, X80钢的阳极溶解抑制了其SCC的发生; 在自腐蚀电位Ecorr(约-720 mV)下, X80钢SCC行为呈现出受阳极溶解和氢脆混合控制的机制; 在-850 mV阴极电位下, 阴极保护抑制了X80钢SCC的发生; 而在-1 000 mV和-1 150 mV阴极电位下, 氢脆在X80钢SCC过程中占重要作用。
应力腐蚀破裂(SCC)
模拟土壤溶液
外加电位
X80 steel
stress corrosion cracking (SCC)
simulated soil solution
applied potential
Abstract
Stress corrosion cracking (SCC) of X80 steel in a simulated solution of the soil environment in Nanxiong of China was investigated by methods of potentiodynamic polarization, slow strain rate test (SSRT) and fracture morphology characterized by scanning electron microscopy (SEM). The results show that X80 steel has different SCC suscepbility of different applied potentials in the soil simulated solution. The SCC behavior of X80 steel is restrained by its anodic disslution at anodic potential of -550 mV. The SCC behavior was controlled by the combined effect of anodic disslution (AD) and hydrogen embrittlement (HE) at the Ecorr of -720 mV. With the applied cathodic potential of -850 mV, the SCC was restricted by the cathodic protection effect. However, when the cathodic potentials of -1 000 mV and -1 150 mV were applied, HE played a more important role in affecting SCC occurrence.
中图分类号 TG174.4
所属栏目 试验研究
基金项目 中石油天然气股份有限公司科学研究与技术开发项目(2009 110031001035)
收稿日期 2012/11/1
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备注王莹, 博士研究生,
引用该论文: CHENG Yuan,YU Hong-ying,WANG Ying,SUN Dong-bai. Effect of Applied Potentials on Stress Corrosion Cracking of X80 Steel in Simulated Nanxiong Soil Solution[J]. Corrosion & Protection, 2013, 34(1): 13
被引情况:
【1】杨耀东,鲁旷达,曹文海,马如飞,张 雷,路民旭, "X70钢和X80钢在鹰潭土壤模拟溶液中的氢脆敏感性",腐蚀与防护 36, 810-813(2015)
【2】张海兵,马力,闫永贵,程文华,袁亚民, "17-4PH不锈钢的析氢行为",腐蚀与防护 37, 317-320(2016)
【3】杨宝,许天旱,王党会, "X90管线钢及焊缝在空气和近中性NS4溶液中的应力腐蚀开裂行为",机械工程材料 40, 78-81(2016)
【4】孟旭,薛旦,李强,俞宏英, "X80钢在碱性环境中的应力腐蚀行为",腐蚀与防护 35, 546-549(2014)
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参考文献
【1】方丙炎, 王俭秋, 朱自勇, 等.埋地管道在近中性pH和高pH环境中的应力腐蚀开裂[J].金属学报, 2001, 37(5):453-458.
【2】Manfredi C, Otegui J L.Failures by SCC in buried pipelines [J].Engineering Failure Analysis, 2002, 9:495-509.
【3】Kentish P J.Gas pipeline failures:Australian experience [J].Corrosion, 1985, 20(3):139-146.
【4】Fang B Y, Atrens A, Wang J Q.Review of stress corrosion cracking of pipeline steels in "low" and "high" pH solutions [J].Journal of Material Science, 2003, 38(1):127-132.
【5】Zhou J L, Li X G, Du C W, et al.Anodic electrochemical behavior of X80 pipeline steel in NaHCO3 solution [J].Acta Metallurgica Sinica, 2010, 46(2):251-256.
【6】Wang J Q, Atrens A.SCC initiation for X65 pipeline steel in the high pH carbonate/bicarbonate solution [J].Corrosion Science, 2003, 45(10):2199-2217.
【7】Gu B, Luo J L, Mao X.Transgranular stress corrosion cracking of X-80 and X-52 pipeline steels in dilute aqueous solution with near-neutral pH[J].Corrosion, 1999, 55(3):312-318.
【8】Cheng Y F.Fundamentals of hydrogen evolution reaction and its implications on near-neutral pH stress corrosion cracking of pipelines [J].Electrochimica Acta, 2007, 52(7):2661-2667.
【9】Liu Z Y, Zhai G L, Li X G, et al.Effect of deteriorated microstructures on stress corrosion cracking of X70 pipeline steel in acidic soil environment [J].Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material, 2008, 15(6):707-713.
【10】Liang P, Du C W, Li X G, et al.Effect of hydrogen on the stress corrosion cracking behavior of X80 pipeline steel in Ku'erle soil simulated solution [J].International Journal of Minerals, Metallurgy and Materials, 2009, 16(4):407-413.
【11】Zhang L, Li X G, Du C W, et al.Effect of applied potentials on stress corrosion cracking of X70 pipeline steel in alkali solution [J].Materials and Design, 2009, 30(6):2259-2263.
【2】Manfredi C, Otegui J L.Failures by SCC in buried pipelines [J].Engineering Failure Analysis, 2002, 9:495-509.
【3】Kentish P J.Gas pipeline failures:Australian experience [J].Corrosion, 1985, 20(3):139-146.
【4】Fang B Y, Atrens A, Wang J Q.Review of stress corrosion cracking of pipeline steels in "low" and "high" pH solutions [J].Journal of Material Science, 2003, 38(1):127-132.
【5】Zhou J L, Li X G, Du C W, et al.Anodic electrochemical behavior of X80 pipeline steel in NaHCO3 solution [J].Acta Metallurgica Sinica, 2010, 46(2):251-256.
【6】Wang J Q, Atrens A.SCC initiation for X65 pipeline steel in the high pH carbonate/bicarbonate solution [J].Corrosion Science, 2003, 45(10):2199-2217.
【7】Gu B, Luo J L, Mao X.Transgranular stress corrosion cracking of X-80 and X-52 pipeline steels in dilute aqueous solution with near-neutral pH[J].Corrosion, 1999, 55(3):312-318.
【8】Cheng Y F.Fundamentals of hydrogen evolution reaction and its implications on near-neutral pH stress corrosion cracking of pipelines [J].Electrochimica Acta, 2007, 52(7):2661-2667.
【9】Liu Z Y, Zhai G L, Li X G, et al.Effect of deteriorated microstructures on stress corrosion cracking of X70 pipeline steel in acidic soil environment [J].Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material, 2008, 15(6):707-713.
【10】Liang P, Du C W, Li X G, et al.Effect of hydrogen on the stress corrosion cracking behavior of X80 pipeline steel in Ku'erle soil simulated solution [J].International Journal of Minerals, Metallurgy and Materials, 2009, 16(4):407-413.
【11】Zhang L, Li X G, Du C W, et al.Effect of applied potentials on stress corrosion cracking of X70 pipeline steel in alkali solution [J].Materials and Design, 2009, 30(6):2259-2263.
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