1.Introduction CO_(2)corrosion of pipelines is one of the major threats in the oil and gas industry[1].Chromium steels(CrSs)and more expen-sive stainless steels(SSs)can mitigate CO_(2)corrosion[2,3].A higher content o...1.Introduction CO_(2)corrosion of pipelines is one of the major threats in the oil and gas industry[1].Chromium steels(CrSs)and more expen-sive stainless steels(SSs)can mitigate CO_(2)corrosion[2,3].A higher content of Cr results in greater uniform corrosion resistance to CO_(2),which is generally attributed to the enrichment of Cr in the corro-sion product film[4,5].The film,which mainly consists of FeCO_(3),Fe(OH)_(3),Cr(OH)_(3),and Cr_(2)O_(3),forms a passive layer on the metal surface,and the enrichment of Cr in this layer helps block corro-sive anions from contacting with the steel surface[6-8].展开更多
文摘1.Introduction CO_(2)corrosion of pipelines is one of the major threats in the oil and gas industry[1].Chromium steels(CrSs)and more expen-sive stainless steels(SSs)can mitigate CO_(2)corrosion[2,3].A higher content of Cr results in greater uniform corrosion resistance to CO_(2),which is generally attributed to the enrichment of Cr in the corro-sion product film[4,5].The film,which mainly consists of FeCO_(3),Fe(OH)_(3),Cr(OH)_(3),and Cr_(2)O_(3),forms a passive layer on the metal surface,and the enrichment of Cr in this layer helps block corro-sive anions from contacting with the steel surface[6-8].
