| Ca~(2+)、Mg~(2+)对N80钢腐蚀速率的影响 |
| |
| 引用本文： | 朱世东,白真权,刘会,林冠发.Ca~(2+)、Mg~(2+)对N80钢腐蚀速率的影响[J].腐蚀与防护,2008,29(12). |
| |
| 作者姓名： | 朱世东 白真权 刘会 林冠发 |
| |
| 作者单位： | 西安石油大学材料科学与工程学院;中国石油管材研究所石油管力学和环境行为重点试验室; |
| |
| 基金项目： | 中国石油天然气集团公司资助项目
|
| |
| 摘 要： | 利用动静态高温高压釜装置,以某油田为应用背景,采用扫描电镜(SEM)和X射线衍射(XRD)技术探讨环境介质因素Ca2+、Mg2+对油管钢N80腐蚀行为的影响规律,试验结果显示,N80钢在CO2/H2S且高矿化度的环境下的腐蚀属于极严重腐蚀,在其他条件保持相同的情况下,随着介质中的Ca2+,Mg2+离子浓度的增大,N80钢的平均腐蚀速率呈先降低后增大趋势;腐蚀产物膜厚不断增大,内应力增大,导致膜层脱落引发点蚀.
|
| 关 键 词： | N80钢 CO2/H2S介质 矿化 腐蚀速率 |
Influence of Ca~(2+) and Mg~(2+) on Corrosion Rate of N80 |
| |
| ZHU Shi-dong BAI Zhen-quan LIU Hui LIN Guan-fa.Influence of Ca~(2+) and Mg~(2+) on Corrosion Rate of N80[J].Corrosion & Protection,2008,29(12). |
| |
| Authors: | ZHU Shi-dong BAI Zhen-quan LIU Hui LIN Guan-fa |
| |
| Affiliation: | ZHU Shi-dong~(1,2) BAI Zhen-quan~2 LIU Hui~1 LIN Guan-fa~2 (1.Xi\'an Shiyou University,Xi\'an 710065,China,2.The Key Lab for Mechanical , Environment Behavior Research of Tubular,CNPC,China) |
| |
| Abstract: | Corrosion mechanism for N80 steel in the CO_2 and H_2S saturated solution with Ca~(2+)and Mg~(2+)in an autoclave was studied using the techniques of SEM and XRD.The results showed that the corrosion of N80 steel was severe in the solution with CO_2/H_2S and high degree of mineralization,and the corrosion rate decreased firstly and increased subsequently with the increase of Ca~(2+)and Mg~(2+).The corrosion product film peeled off and pitting corrosion occured with the increase of thickness and internal stre... |
| |
| Keywords: | N80 steel CO_2/H_2S mineralization corrosion rate |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
