广西科学院学报2016，Vol.32Issue(3)：174-179,6.DOI:10.13657/j.cnki.gxkxyxb.20160826.003
马惠线储罐沉积水中常用管线钢的腐蚀性对比
Corrosion Behavior of Commonly Used Pipeline Steels in Storage Tank Water of Mahui Pipeline
摘要
Abstract
[Objective]Proper material selection is significant for internal corrosion protection of newly-constructed pipelines.[Methods]Corrosion behavior of 5 types of commonly used pipeline steels X42,X52,X60,X65 and X70 were investigated through corrosion weight loss test carried out in storage tank water of Mahui pipeline.Corrosion products were analyzed through surface analysis technology SEM and XPS.[Results]The results of this test showed that the corrosion rates of these 5 types of pipeline steels first arose then decreased with the increase of test temperature and reached their maximum at 48℃.The corrosion rates of these 5 types of pipeline steels first arose then decreased with the increase of the flow velocity of the test water and reached their maximum at 0.18 m/s.Under static conditions,the corrosion rates of different strength grade pipeline steels showed little difference,and pipeline steels with higher strength grade showed higher pitting sen-sitivity.However,under the conditions of flow-ing water,pipeline steels with higher strength grade showed higher corrosion resistance.[Conclusion]Taking corrosion resistance,erosion resistance and pitting resistance into consideration,X60 and X65 pipeline steels were recom-mended for Mahui crude oil pipeline.关键词
原油管道/内腐蚀/管线钢/选材Key words
crude oil pipeline/internal corrosion/pipeline steel/material selection分类
矿业与冶金引用本文复制引用
刘猛,张克,姜有文,赵连玉,赵建涛,陈新华..马惠线储罐沉积水中常用管线钢的腐蚀性对比[J].广西科学院学报,2016,32(3):174-179,6.基金项目
中国石油天然气股份有限公司科研项目资助。 （）
