Title: Specialty of Corrosion Product Film of Anti-sulfur Carbon Steel With H_2S/CO_2 Saturated and Effect of Which on Corrosion
Abstract: Using HTHP autoclave to study specialty of corrosion product film of anti-sulfur carton steel with CO2/H2S saturated and effect of which on corrosion by weight loss,ESEM and EDS.Experimental results showed Corrosion of material was obviously determined by specialty of corrosion product film of TN steel in different medium at 120℃,corrosion film becalmed close,and tightly packed,crystal grain presented thin and piled up under the conditions of miscellaneous confusion at different terms of CO2、H2S、CO2/H2S,the film could provide with protection preferably,so reduced corrosion of steel;When 0.5% acetic acid was went into,the corrosion rate quickened,the film showed that composition of FeS reduced,however composition of Cr、W enhanced,Which made framework of corrosion product film much more tighter,whereas,the diffluence of film was quicken up with pH reducing,this made corrosion rate more soon than that of 3%NaCl+H2S+0.45MPaCO2;structure、character and composition of the corrosion product film are important with corrosion rate.
Publication Year: 2008
Publication Date: 2008-01-01
Language: en
Type: article
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