BFe30-1-1白铜管在海洋大气环境中的腐蚀行为
Oceanic Atmospheric Corrosion Behavior of BFe30-1-1 Copper-Nickel Alloy Pipes
摘 要
采用激光拉曼光谱仪结合扫描电镜、X射线能谱仪等研究了BFe30-1-1白铜管在海洋大气环境中暴露20年的腐蚀情况,对试样去除腐蚀产物前后表面的元素分布及其存在形式进行了分析.结果表明,表面腐蚀产物是CuO、α-Fe2O3和Fe3O4;用石英玻璃刮掉表面一层腐蚀产物后检测到了NiO,并且此时氯元素的含量较高.将原始腐蚀样品酸洗后,检测到Cu2O、FeO和γ-Fe2O3,并且检测到了较高含量的碳元素.试验结果还表明,激光拉曼光谱仪和能谱仪联用可以很好地评价白铜管的大气腐蚀行为.
大气腐蚀
激光拉曼光谱
cupronickel
atmospheric corrosion
laser Raman spectroscopy
Abstract
Laser Raman spectroscopy,SEM and EDX were used to study the corrosion behavior of BFe30-1-1 copper-nickel alloy pipes exposed to marine atmosphere for 20 years.CuO,α-Fe2O3 and Fe3O4 were detected in the surface corrosion products.NiO and Cl- were detected when the corrosion products were removed by quartz glass.After removing corrosion products by acid,Cu2O,FeO,γ-Fe2O3 and much C were detected.The atmospheric corrosion of cupronickel could be well analyzed by using Laser Raman spectroscopy and EDX together.
中图分类号 TG172.3
所属栏目 试验研究
基金项目
收稿日期 2008/1/2
修改稿日期
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引用该论文: JIANG Li-na,SUI Yong-qiang,SONG Hong-qing. Oceanic Atmospheric Corrosion Behavior of BFe30-1-1 Copper-Nickel Alloy Pipes[J]. Corrosion & Protection, 2009, 30(2): 81～83
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参考文献
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【2】O Poupard,V L′Hostis,S Catinaud,et al.Corrosion damage diagnosis of a reinforced concrete beam after 40 years natural exposure in marine environment[J].Cement and Concrete Research,2006,36:504-511.
【3】林乐耘,刘少峰,刘增才,等.铜镍合金海水腐蚀的表面与界面特征研究[J].腐蚀科学与防护技术,1999,11(1):37-43.
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【7】许淳淳,王紫色,王菊琳.模拟土壤介质中仿古铸铁腐蚀产物的形貌及其生长过程[J].化工学报,2005,56(12):2373-2379.
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