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Keywords: corrosion product
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Proceedings Papers

Paper presented at the CORROSION 2021, April 19–30, 2021
Paper Number: NACE-2021-16656
... CO2 condition (8 MPa and 35oC). The corrosion rate of samples was determined by weight loss measurements. The surface morphology and the composition of the corrosion product layers were analyzed by using surface analytical techniques (SEM and EDS). Localized corrosion was measured via surface...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13526
... water content corrosion flowline corrosion riser corrosion corrosion rate wall shear stress permission Houston flow loop erosion-corrosion behavior surface morphology morphology different temperature corrosion morphology coating corrosion product manuscript Evaluation of Erosion...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-12713
... environments due to its sensitivity to dust, contaminants and corrosion products. 5 The accuracy of US techniques under field conditions is usually limited to a few hundreds of micrometers on corroded materials. 6 Optical techniques have yet not shown to be applicable under field conditions...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-12808
.... The first to simulate the immersed zone and the second to simulate above-surface splash zone conditions. The effectiveness of the coatings was evaluated using electrochemical techniques (OCP monitoring, dynamic polarization and LPR). Raman spectroscopy and SEM/EDX were employed to analyze corrosion products...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-12826
... to measure the real-time rate of corrosion shoud be placed within the interstitial space and near the tank floor. Subsurface Corrosion reference electrode Publication Division Pipeline Corrosion well integrity flowline corrosion riser corrosion cathodic protection texas 77084 corrosion product...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-12838
... corrosive environments, they are expensive and unsuitable for large-scale application. Pipeline Corrosion well integrity co 2 flowline corrosion Subsurface Corrosion corrosion rate materials and corrosion feco 3 permission texas 77084 corrosion product corrosion resistance static condition...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-12866
... ABSTRACT Corrosion products could have a significant impact on the corrosion process of carbon steel in H 2 S environment. It is widely believed that the different iron sulfides have different effects due to their distinct physicochemical properties. Therefore, an in-depth knowledge...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-12844
... with a potential range of maximum 20 mV relative to OCP at a scan rate of 1 mV/s. RESULTS Visual examination Coupons were carefully removed from the basin and photos of as-received conditions were taken prior to chemical and biological analysis. Unprotected coupons show yellowish corrosion products in the first...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-12868
... corrosion product Houston Susceptibility of 304 stainless steel to crevice corrosion in Electrochemically Active Fluids Abinaya Kamaraj Federal Institute for Materials Research and Testing Unter den Eichen 87 Berlin,12205 Germany Johann Wilhelm Erning Federal Institute for Materials Research...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-12943
... to its economic and metallurgical advantages. The formation of Iron Sulfide (FeS) corrosion product is common during its application in H2S-containing environments. The plurality of mechanisms is a fundamental aspect of FeS formation that is still not clearly understood especially in H2S/CO2 environments...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13061
... constituted of pure CO2 at three different temperatures, namely: 40 C, 60 C, and 80. Linear Polarization and potentiodynamic sweeps were used to investigate the electrochemical behavior. The corrosion products and precipitates were analyzed using SEM-EDS. Calcium carbonate together with iron carbonate...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13081
... was observed on the sample surface when the flow rate exceeded 1 m/s. The corrosion product mainly consisted of FeCO3 and FeS, and the average size of spherical corrosion product changed with flow rate. Besides, the percentage composition of FeS presented the same change trend as the average size of spherical...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13067
.... Figure 6: The position of the equipment in which unusual corrosion occurred In this unusual corrosion, thick corrosion products had grown at the bottom of the access port, which had the appearance of Bamboo shoots or stalagmites. The shape of the access port was 800 mm in diameter, and the maximum height...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13082
.... The formation of corrosion products on 3Cr-N80 steel was rich in Cr content and Cr content was about 8 times higher than that of in the substrate, resulting in high corrosion resistance and providing better protection to the steel. FeCO3 and Cr(OH)3 co-deposited films have a critical effect on the CO2 corrosion...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13017
... H2O (8) 2 H2S + SO2 3x Sx + 2 H2O (9) 2 H2S + O2 2x Sx + 2 H2O (10) 2 H2S + 4 NO2 SO2 + 4 NO + 2 H2O + S (11) As a result, the chemical composition of corrosion product is strongly depended on the presence of impurities and their concentration. Up to now, most of the studies have been focused...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13101
... three surface characteristics: (i) polished surface by sanding a coupon, (ii) surface with mill-scale plus corrosion product, and (iii) partially removed mill-scale plus corrosion products. Coupons were immersed in a waste simulant for several months and OCPs were recorded. Several other electrochemical...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13132
... of the author(s) and are not necessarily endorsed by the Association. H2O-saturated sc-CO2. The total pressure of the system was 10 MPa and the test lasted for 137 hours at 45 C. Figure 2. Apparatus for the supercritical CO2 corrosion test. 2.3 Corrosion products characterization After corrosion test, weight...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13289
... for internal inspection and appreciable corrosion was noticed in the top sections of the vessels. A study was initiated to find out the probable causes of the deterioration. Corrosion products were collected for XRD analyses. Also, chemical analysis of lean & rich glycol samples taken from various streams...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13134
..., and the implications of the films for long-term performance under repository conditions. materials and corrosion Upstream Oil & Gas flowline corrosion riser corrosion Subsurface Corrosion Pipeline Corrosion well integrity Cu corrosion polarization resistance corrosion product resistance texas...

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