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Pitting Corrosion of L360 Steel in H2S/CO2 Environment
H2S/CO2环境中L360钢点蚀行为研究

Keywords: " target="_blank">2S/CO2 environmentzz')" href="#">&searchField=keyword">&prev_q=2S/CO2 environmentzz')" href="#">" target="_blank">2S/CO2 environmentzz')" href="#">,H2S/CO2 environment,pipeline steel,pitting corrosion,chlorine ion,temperature,statistical analysis
H2S/CO2环境
,管线钢,点蚀,氯离子,温度,统计分析

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Abstract:

The effect of temperature and Cl- concentration on pitting corrosion of L360 steel in H2S/CO2 environment has been studied using methods of mass loss testing,SEM and XRD.The depth distribution of pits was analyzed with Gumbel first approximating function.The results showed that pitting corrosion tended to be more serious with the increase of temperature(from 40℃to 70℃) in 10 g/L Cl- solution.Pitting corrosion occurred in Cl- solution with the concentration of 1015 g/L at constant temperature,and uniform corrosion ccurred when the Cl- concentration was higher than 20 g/L.As the temperature increased,corrosion products on the surface became looser and the protective property decreased.The measured maximum depth of pits followed the Gumbel first approximating function.

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