【摘要】：采用CHI660D電化學(xué)工作站研究304、316L、2205、2507不銹鋼在模擬塔里木油田復(fù)雜腐蝕介質(zhì)中的電化學(xué)腐蝕性能,并通過(guò)掃描電子顯微鏡(SEM)對(duì)其表面的腐蝕產(chǎn)物膜進(jìn)行對(duì)比分析.結(jié)果表明:2種復(fù)雜腐蝕介質(zhì)條件下,隨溫度升高,4種不銹鋼的耐蝕性和抗點(diǎn)蝕能力都會(huì)降低.CO2的通入對(duì)不銹鋼的腐蝕過(guò)程影響較為復(fù)雜.20℃時(shí),4種不銹鋼的耐蝕性和抗點(diǎn)蝕能力隨CO2的加入均降低;而50、80℃時(shí),4種不銹鋼的耐蝕性和抗點(diǎn)蝕能力則會(huì)增強(qiáng).相同腐蝕條件下,4種不銹鋼的耐腐蝕能力由強(qiáng)到弱的順序?yàn)?2507、2205、316L、304.
[Abstract]:The electrochemical corrosion performance of 304316LZ2205C2507 stainless steel in complex corrosion medium of Tarim Oilfield was studied by CHI660D electrochemical workstation. The corrosion product film on the surface was analyzed by scanning electron microscope (SEM). The results show that the corrosion resistance and pitting resistance of four stainless steels decrease with the increase of temperature under two complex corrosion media conditions. The effect of CO2 entry on the corrosion process of stainless steel is more complex at 20 鈩，

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