在管线钢中添加1%~5%(质量分数,下同)Cr可提高其抗CO2腐蚀能力,本工作重点研究了Cr含量对低Cr管线钢组织、力学性能、耐蚀性能及焊接性能的影响.结果表明:3%~5%Cr元素的添加可使钢的组织由铁素体加少量珠光体变为以贝氏体为主.1%以上Cr的加入即可提高钢的硬度、强度,同时保持良好的韧性.由于富Cr保护性腐蚀产物膜的形成,3%~5%Cr的添加可显著降低CO2全面腐蚀速率,并抑制局部腐蚀的发生.含1%~5%Cr的合金钢焊接接头具有较好的综合力学性能,但5%Cr钢焊接接头热影响区硬度偏高.
参考文献
| [1] | CROLET J L.Predicting CO2 Corrosion in the Oil and Gas Industry[M].London:The Institute of Materials,1994 |
| [2] | 张忠铧,黄子阳,孙元宁,蔡海燕,郭金宝.3Cr抗CO2和H2S腐蚀系列油套管开发[J].宝钢技术,2006(03):5-8,59. |
| [3] | Hideki Takabe;Masakatsu Ueda .The Relationship between CO_2 Corrosion Resistance and Corrosion Products Structure on Carbon and Low-Cr-Bearing Steels[J].Corrosion Engineering,2007(11):677-690. |
| [4] | SMITH L M;JORDAN D E.Ensuring corrosion properties of CRA welds meet requirements for the oil and gas industry[A].Houston:Omnipress,2003 |
| [5] | LINNE C P;BLANCHARD F;GUNTZ G C.Corrosion performances of modified 13Cr for OCTG in oil and gas environments[A].Houston:Omnipress,1997 |
| [6] | ROGNE T;EGGEN T G;STEINSMO U.Corrosion of C-Mn steel and 0.5%Cr steel in flowing CO2 saturated brines[A].Houston:Omnipress,1996 |
| [7] | PIGLIACAMOPO L;GONZALES J C;TURCONI G L.Window of application an operational track of low carbon 3Cr steel tubular[A].Houston:Omnipress,2006 |
| [8] | KERMANI M B;GONZALES J C;LINNE C.Development of low carbon Cr-Mo steels with exceptional corrosion resistance for oilfield applications[A].Houston:Omnipress,2001 |
| [9] | 刘云旭.金属热处理原理[M].北京:机械工业出版社,1981:140-141. |
| [10] | 杨建炜,张雷,丁睿明,路民旭.管线钢在湿气介质中的H2S/CO2腐蚀行为研究[J].材料工程,2008(11):49-53,58. |
| [11] | 孙建波,柳伟,常炜,张忠铧,李忠涛,于湉,路民旭.低铬X65管线钢CO2腐蚀产物膜的特征及形成机制[J].金属学报,2009(01):84-90. |
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