| 深水钻井隔水管表面电弧喷涂铝锌伪合金涂层腐蚀行为研究 |
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| 引用本文： | 刘存,赵卫民,王勇.深水钻井隔水管表面电弧喷涂铝锌伪合金涂层腐蚀行为研究[J].中国海上油气,2011,23(1). |
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| 作者姓名： | 刘存 赵卫民 王勇 |
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| 作者单位： | 1. 中国石油大学(华东)机电工程学院;海洋石油工程(青岛)有限公司
2. 中国石油大学(华东)机电工程学院 |
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| 基金项目： | 国家"863"高技术研究发展计划项目，山东省科技攻关项目 |
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| 摘 要： | 利用电弧喷涂方法在钢表面制备了铝锌伪合金涂层和铝涂层.通过力学试验、实海试验、室内腐蚀挂片试验等对比分析了铝锌伪合金涂层的优势.采用电子探针(EPMA)、X-射线衍射(XRD)技术分析了铝锌伪合金涂层在质量浓度为35 g/L NaCl水溶液中的离子渗透情况和腐蚀产物成分,并结合电化学阻抗谱(EIS)方法研究了涂层的腐蚀机理;指出铝锌伪合金涂层鼓包主要是由于涂层发生含锌相选择性腐蚀引起,并提出了相应的改进措施.
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| 关 键 词： | 深水钻井隔水管 电弧喷涂 铝锌伪合金涂层 腐蚀防护 |
Corrosion behaviors of arc-sprayed Al/Zn pseudo alloy coating on deep-water drilling riser's surface |
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| Liu Cun,Zhao Weimin,Wang Yong.Corrosion behaviors of arc-sprayed Al/Zn pseudo alloy coating on deep-water drilling riser's surface[J].China Offshore Oil and Gas,2011,23(1). |
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| Authors: | Liu Cun Zhao Weimin Wang Yong |
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| Affiliation: | Liu Cun1,2 Zhao Weimin1 Wang Yong1(1.College of Electromechanical Engineering in China University of Petroleum,Shandong,257061,2.Offshore Oil Engineering(Qingdao)Co.,Ltd.,266520) |
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| Abstract: | In this study Al/Zn pseudo alloy coating and aluminum coating were deposited on steel substrate by using arc spraying.Mechanical tests,offshore in-situ plates test,and laboratory coupon test were carried out to comparatively evaluate the Al/Zn pseudo alloy coating's superior performance.Electron probe micro-analysis(EPMA) and X-ray diffraction(XRD) were used to analyze the ion penetration and corrosion product composition of pseudo alloy coating in 35 g/L NaCl aqueous solution.The corrosion failure mechanis... |
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| Keywords: | deep water drilling riser arc spraying Al/Zn pseudo alloy coating corrosion protection |
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