[PDF] Top 20 Effect of Temperature on the Corrosion Behavior of API X80 Steel Pipeline

... the API X80 steel specimens after potentiodynamic tests at different ...carbon steel [40]. Using the ambient temperature test as a reference, key quantitative measurements were obtained ... See full document

... Energy-dispersive spectra of positions 1 and 2 show that they are rich in Al and Si respectively, indicating that they are Al-rich and Si-rich inclusions. The same results are obtained for the other cracks. Thus, these ... See full document

... The simulated heat-affected zone (HAZ) and reheated coarse-grained HAZ (CGHAZ) samples were obtained by welding thermal simulation, which was performed using a Gleeble 3500 simulator. The samples that were subjected to ... See full document

... time-dependent behavior of components built with alloys undergoing this ...the corrosion behavior has not been studied in ...The steel products employed to fabricate pipelines must comply with ... See full document

... Pipeline steel has been used in the transport of petroleum, petrochemicals, natural gas and water ...a temperature gradient across different pipe sections, which has a great influence on ... See full document

... the corrosion. Tian et al [6, 7] reported that the corrosion of X65 steel increased with the increasing electrode rotating speed, the presence of sand particles increased the anodic dissolution ... See full document

... damage effect of AC on the passive films formed on the surface of the two steels, the Mott-Schottky curve was ...of steel by DC circuit, then the specimen with the formed film interfered at AC current ... See full document

... for steel after 24 h immersion before applying the constant potential is most probably due to the formation of corrosion products and/or oxide films on the steel surface, which get thicker with ... See full document

... mV. The surface morphology of the sample after polarization was observed under a Leica DM5200 metallographic microscope. The Origin7.5 software was used to fit the analysis of the polarization curves, and the ... See full document

... electrochemical corrosion of API-X100 pipeline steel was ...the corrosion rates were relatively discrepant, the corrosion potentials decreased with carbonate content and ... See full document

... buried steel pipelines become more vulnerable to the AC ...buried pipeline corrosion[15-17]. There are many AC corrosion theories [18-27] such as Faraday rectification [28], irreversibility of ... See full document

... general corrosion and pitting corrosion behaviors of X80 steel in Ku’erle soil solution over a range of pH values, which simulated the pH of disbonded coating from pipeline ... See full document

... carbon steel [15], and acid rain can result in the failure of protective coating ...the steel is found to be very thin [5, 10]. Electrochemical corrosion of steel under thin electrolyte layer ... See full document

... most corrosion aggressive soils toward pipeline ...influence corrosion process and induce some new phenomena in the soil ...electrochemical behavior of API X80 pipeline ... See full document

... of corrosion products of X80 pipeline steel in ...the X80 pipeline steel underwent a rather uniform corrosion, whereas a small amount of pitting was also observed ... See full document

... of X80 steel under different stress conditions is processed to obtain the relationships curve of OCP with stress changes in ...significant effect on the corrosion resistance of the X80 ... See full document

... weaker corrosion resistance than base metal and welded material with or without stressing levels in near-neutral solution or high-pH solution ...the corrosion resistance in HAZ through changing the ... See full document

... pitting corrosion is observed in the side near fracture surface, which indicates that the propagation mode is no associated with ...the steel with AC interference has a higher SCC ... See full document

... as corrosion inhibitors, no work has so far been reported on the use of pyrazoles as corrosion inhibitors for the metals especially mild ...Stainless steel is widely used in many applications such as ... See full document

... of corrosion inhibitor is a standard practice in oil and gas production systems to control internal corrosion of carbon steel ...The corrosion inhibition of organic compounds is related to ... See full document