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Artículos de revistas sobre el tema "Sulphide corrosion"

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Publicado: 4 de junio de 2021
Última modificación: 6 de febrero de 2022

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1

C. Fatah, Martin, Mokhtar C. Ismail, and Bambang Ari-Wahjoedi. "Corrosion behaviour of X52 steel in the presence of sulphite." Anti-Corrosion Methods and Materials 61, no. 5 (August 26, 2014): 343–52. http://dx.doi.org/10.1108/acmm-03-2013-1246.

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Purpose – The purpose of this work was to study the corrosion behaviour of X52 steel in the presence of sulphite. Design/methodology/approach – The study was conducted in abiotic solutions containing species typical of sulphate-reducing bacteria (SRB) metabolism. Electrochemical techniques, i.e. linear polarization resistance (LPR), potentiodynamic and electrochemical impedance spectroscopy (EIS), were used to observe the corrosion kinetics and mechanism of X52 steel in the solution containing sulphite. Field emission scanning electron microscope (FESEM) and X-ray photoelectron spectroscopy (X
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2

Assaad Abdelmseeh, V., J. Jofriet, and G. Hayward. "Sulphate and sulphide corrosion in livestock buildings, Part II: Reinforcing steel corrosion." Biosystems Engineering 99, no. 3 (March 2008): 382–89. http://dx.doi.org/10.1016/j.biosystemseng.2007.11.005.

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3

Pękala, Marek, Paul Wersin, Veerle Cloet, and Nikitas Diomidis. "Reactive transport calculations to evaluate sulphide fluxes in the near-field of a SF/HLW repository." E3S Web of Conferences 98 (2019): 10005. http://dx.doi.org/10.1051/e3sconf/20199810005.

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Radioactive waste is planned to be disposed in a deep geological repository in the Opalinus Clay (OPA) rock formation in Switzerland. Cu coating of the steel disposal canister is considered as potential a measure to ensure complete waste containment of spent nuclear fuel (SF) and vitrified high-level waste (HLW) or a period of 100,000 years. Sulphide is a potential corroding agent to Cu under reducing redox conditions. Background dissolved sulphide concentrations in pristine OPA are low, likely controlled by equilibrium with pyrite. At such concentrations, sulphide-assisted corrosion of Cu wou
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4

Stephenson, R. J., R. M. R. Branion, and K. L. Pinder. "Sulphur Management Strategies in Anaerobic Treatment of a BCTMP/TMP Effluent." Water Quality Research Journal 28, no. 3 (August 1, 1993): 635–64. http://dx.doi.org/10.2166/wqrj.1993.033.

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Abstract Anaerobic treatment of a bleached chemithermomechanlcal/ thermomechanical BCTMP/TMP (2:1 by volume) effluent obtained from Quesnel River Pulp Co. was studied on a laboratory scale at 35°C. The experimental apparatus consisted of upflow anaerobic sludge bed (UASB) acidogenic reactors followed by hybrid upflow anaerobic sludge bed/fixed-film methanogenic reactors. Under anaerobic conditions, sulphite and sulphate are reduced to sulphide, presenting problems of toxicity, odour, corrosion and reduced methane yields, and treatment efficiencies. The fate of these compounds was examined unde
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5

Łabanowski, Jerzy, and J. Ćwiek. "High Temperature Corrosion of Evaporator Tubes with Thermal Sprayed Coatings." Solid State Phenomena 165 (June 2010): 110–17. http://dx.doi.org/10.4028/www.scientific.net/ssp.165.110.

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Degradation examinations of outer surface of low-emission steam boiler evaporator tubes are presented in the paper. Metallographic evaluation of scale morphology as well as determination of chemical composition of micro sites and distribution of elements on cross-sections is reported. Water-wall tubes were exposed in steam boiler for up to two years period. Common tubes produced from 16Mo3 steel suffered sulphide and molten salts corrosions. Thermal sprayed tubes with the single layer of 70%Ni 30%Cr alloy demonstrate better corrosion resistance, but become susceptible to sulphide corrosion due
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6

Suleiman, Mabruk I. "Sulphur Species Corrosivity in Refinery Feed Stock." Solid State Phenomena 227 (January 2015): 213–16. http://dx.doi.org/10.4028/www.scientific.net/ssp.227.213.

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High temperature sulphide corrosion and equipment failures have been reported in several crude and condensate processing facilities of petroleum refineries. Affected materials were carbon and low alloy steels operated in temperatures ranging from 200 to 300°C.These failures were attributed to specific sulphur species and were not anticipated by corrosion prediction tools used for their material selection. The corrosion mechanisms of these species are not fully understood. This paper presents Takreer Research Centre (TRC) research work for isolating the active sulphur species responsible for th
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7

Cwalina, Beata, Weronika Dec, Wojciech Simka, Joanna Michalska, and Marzena Jaworska-Kik. "Biofilm Formation on NiTi Surface by Different Strains of Sulphate Reducing Bacteria (Desulfovibrio desulfuricans)." Solid State Phenomena 227 (January 2015): 302–5. http://dx.doi.org/10.4028/www.scientific.net/ssp.227.302.

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Bacteria of Desulfovibrio genus belong to group of widespread sulphate-reducing bacteria (SRB). D. desulfuricans is considered one among many bacterial species involved in microbiologically influenced corrosion (MIC) of metals, mainly of stainless steels and other alloys. SRB can produce gaseous hydrogen sulphide. This gas is released into the environment leading to formation of metal sulphides that significantly influence electrochemical processes and ultimately enhance the corrosion of materials. Biofilms formed by these bacteria are especially harmful for highly alloyed steels and many allo
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8

Stephenson, R. J., R. M. R. Branion, and K. L. Pinder. "Anaerobic 35°C and 55°C Treatment of a BCTMP/TMP Effluent: Sulphur Management Strategies." Water Science and Technology 29, no. 5-6 (March 1, 1994): 433–45. http://dx.doi.org/10.2166/wst.1994.0736.

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Pulp manufacture uses sulphur in a variety of forms and these sulphur compounds ultimately end up in the effluent. Under anaerobic conditions, sulphite and sulphate are reduced to sulphide, presenting problems of toxicity, odour, corrosion, and reduced methane yields and treatment efficiencies. The fate of these inorganic sulphur compounds in a bleached chemi-thermomechanical pulp/thermomechanical pulp (BCTMP/TMP) effluent mixture was examined in two phase anaerobic reactors at 35°C and 55°C. The following sulphur management strategies were investigated: 1) controlling the pH of the acidogenic
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9

Volpi, Enrico, Matteo Stefanoni, Andrea Olietti, and Stefano Trasatti. "Mild Steel Passivation and Depassivation in Simulated Concrete Pore Solution Containing Bacteria Metabolites." Solid State Phenomena 227 (January 2015): 203–6. http://dx.doi.org/10.4028/www.scientific.net/ssp.227.203.

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Although much less investigated than that induced by chlorides, the corrosion of steel reinforcing bars due to bacteria metabolic products is recognised as a serious issue, primarily for concrete pipes in sewer network. In order to overcome the complications due to the preparation of concrete samples the investigation was performed using simulating solutions. The passivation of the metallic specimens was obtained by immersion in Ca (OH)2 sat and monitored through several different electrochemical techniques. The depassivation was induced by either sulphuric acid or sulphides in order to simula
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10

Thorhallsson, Andri Isak, and Sigrun Nanna Karlsdottir. "Corrosion Behaviour of Titanium Alloy and Carbon Steel in a High-Temperature, Single and Mixed-Phase, Simulated Geothermal Environment Containing H2S, CO2 and HCl." Corrosion and Materials Degradation 2, no. 2 (April 29, 2021): 190–209. http://dx.doi.org/10.3390/cmd2020011.

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The corrosion behaviour of a new titanium-based alloy, with nickel, molybdenum and zirconium as the main alloying elements, was studied in a simulated geothermal environment at various phase conditions of a corrosive fluid. Corrosion testing of carbon steel was also conducted for comparison. Both materials were tested at an elevated temperature between 180 and 350 °C and at a 10 bar gauge pressure in H2O containing HCl, H2S, and CO2 gases with an acidic condensate of pH = 3. The study found that the titanium alloy demonstrated good corrosion resistance in a single- and multiphase geothermal en
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11

Osadebe, Anwuli U., Dorcas C. Olorondu, and Gideon C. Okpokwasili. "Environmental and Microbial Influences on Corrosion of Selected Types of Petroleum Industry Steel." Environment and Natural Resources Journal 19, no. 4 (June 1, 2021): 310–19. http://dx.doi.org/10.32526/ennrj/19/2021004.

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This study explored the influence of brackish water sediment, mangrove swamp sediment, clayey/lateritic soil, and river water (freshwater) sediment on the corrosion rates of carbon, mild, and stainless steels and the species of sulphate reducing bacteria (SRB) and iron bacteria associated with the process. The material loss following burial of the steel samples for a 9-month period was assessed. Standard and specialised microbiological techniques were employed in the characterisation of the bacterial species. Qualitative assessment for corrosion was done via optical microscopy and macroscopy.
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12

Sease, Catherine. "CASE FURNISHING MATERIALS CAUSE SULPHIDE CORROSION." Studies in Conservation 39, sup1 (September 1994): 30. http://dx.doi.org/10.1179/sic.1994.030.

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13

Valdez Salas, Benjamin, Michael Schorr Wiener, Roumen Zlatev Koytchev, Gustavo López Badilla, Rogelio Ramos Irigoyen, Monica Carrillo Beltrán, Nicola Radnev Nedev, Mario Curiel Alvarez, Navor Rosas Gonzalez, and Jose María Bastidas Rull. "Copper Corrosion by Atmospheric Pollutants in the Electronics Industry." ISRN Corrosion 2013 (October 2, 2013): 1–7. http://dx.doi.org/10.1155/2013/846405.

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Hydrogen sulphide (H2S) is considered one of the most corrosive atmospheric pollutants. It is a weak, diprotic, reducing acid, readily soluble in water and dispersed into the air by winds when emitted from natural, industrial, and anthropogenic sources. It is a pollutant with a high level of toxicity impairing human health and the environment quality. It attacks copper forming thin films of metallic sulphides or dendrite whiskers, which are cathodic to the metal substrate, enhancing corrosion. H2S is actively involved in microbially influenced corrosion (MIC) which develops in water, involving
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14

Assaad Abdelmseeh, V., J. Jofriet, and G. Hayward. "Sulphate and sulphide corrosion in livestock buildings, Part I: Concrete deterioration." Biosystems Engineering 99, no. 3 (March 2008): 372–81. http://dx.doi.org/10.1016/j.biosystemseng.2007.11.002.

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15

Tran Thi Thuy, Tien, Krishnan Kannoorpatti, Anna Padovan, and Suresh Thennadil. "Effect of Alkaline Artificial Seawater Environment on the Corrosion Behaviour of Duplex Stainless Steel 2205." Applied Sciences 10, no. 15 (July 22, 2020): 5043. http://dx.doi.org/10.3390/app10155043.

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Sulphate reducing bacteria (SRB) can be found in alkaline environments. Due to their metabolite products such as hydrogen sulphide, the corrosion behaviour of materials in alkaline environments may be affected by the presence of SRB. This study focuses on the investigation of corrosion behaviour of duplex stainless steel DSS 2205 in nutrient rich artificial seawater containing SRB species, Desulfovibrio vulgaris, at different alkaline conditions with pH range from 7 to 10. The open circuit potential value (OCP), sulphide level and pH were recorded daily. Confocal laser scanning microscopy (CLS
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16

Æsøy, A., S. W. Østerhus, and G. Bentzen. "Controlled treatment with nitrate in sewers to prevent concrete corrosion." Water Supply 2, no. 4 (September 1, 2002): 137–44. http://dx.doi.org/10.2166/ws.2002.0131.

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It has generally been accepted that concrete corrosion is caused by bacterial oxidation of hydrogen sulphide in sewage systems. Costs related to sewer replacement and remediation are quite high, but there is limited knowledge and documentation on the relationship between hydrogen sulphide levels and corrosion rates. This is necessary information in order to select the appropriate means of hydrogen sulphide control and to conduct cost-benefit evaluations. This pilot scale study shows that the concrete corrosion rate can be modeled by a Monod type function with Ks=2 ppm H2S in gas and a maximum
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17

Majtás, D., K. Kreislová, and L. Turek. "Failure of electric products by H2S." Koroze a ochrana materialu 62, no. 2 (May 1, 2018): 71–77. http://dx.doi.org/10.1515/kom-2018-0010.

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Abstract Copper is widely used metal for industrial and public purposes due to its good corrosion resistance and excellent electrical conductivity. In indoor atmospheric environments with low level of air pollution the corrosion rate of copper is very low and it is not affected by slight increasing of temperature or relative humidity. In many indoor environment hydrogen sulphide (H2S) occurs and significantly affects the copper corrosion. CuS is a loose of black corrosion product which can’t form protective film on copper surface and promote corrosion by adsorption of moisture as carrier. In s
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18

Afanasyev, A. V., A. A. Mel’nikov, S. V. Konovalov, and M. I. Vaskov. "The Analysis of the Influence of Various Factors on the Development of Stress Corrosion Defects in the Main Gas Pipeline Walls in the Conditions of the European Part of the Russian Federation." International Journal of Corrosion 2018 (June 3, 2018): 1–10. http://dx.doi.org/10.1155/2018/1258379.

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This paper considers the factors influencing the formation and development of stress corrosion defects detected during the inspection and overhaul of the main gas pipeline section. The surveyed gas pipeline is made of large diameter steel pipes made by controlled rolling, produced by various companies, with the predominance of pipes produced by the Khartsyzsk Pipe Plant (KhPP). The correlation between the geometric parameters of defects is described, which makes it possible to estimate the depth of cracks by external parameters. Mechanical tests by cyclic loading of samples containing cracks,
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19

Chen, J., Z. Qin, T. Martino, M. Guo, and D. W. Shoesmith. "Copper transport and sulphide sequestration during copper corrosion in anaerobic aqueous sulphide solutions." Corrosion Science 131 (February 2018): 245–51. http://dx.doi.org/10.1016/j.corsci.2017.11.025.

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20

Witherspoon, J., E. Allen, and C. Quigley. "Modelling to assist in wastewater collection system odour and corrosion potential evaluations." Water Science and Technology 50, no. 4 (August 1, 2004): 177–83. http://dx.doi.org/10.2166/wst.2004.0256.

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Odour emissions and corrosion concerns can be a constant focus for many wastewater treatment and collection system owners, usually from the first day that their collection systems begin operation. Many sewer systems are reaching the end of their useful life, or have experienced either odour or corrosion issues. This paper shows a link between odour generation and corrosion potential, and how modelling can be used to assist in odour/corrosion assessments of existing wastewater collection systems. A model has been developed that is capable of predicting liquid-phase sulphide generation and subse
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21

A, Adebayo, and Oluwadare B. S. "Corrosion of Steels in Water and Hydrogen Sulphide." Review of Industrial Engineering Letters 1, no. 2 (2014): 80–88. http://dx.doi.org/10.18488/journal.71/2014.1.2/71.2.80.88.

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22

Paul, Subir, Anjan Pattanayak, and Sujit K. Guchhait. "Corrosion Behavior of Carbon Steel in Synthetically Produced Oil Field Seawater." International Journal of Metals 2014 (December 17, 2014): 1–11. http://dx.doi.org/10.1155/2014/628505.

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The life of offshore steel structure in the oil production units is decided by the huge corrosive degradation due to SO42-, S2−, and Cl−, which normally present in the oil field seawater. Variation in pH and temperature further adds to the rate of degradation on steel. Corrosion behavior of mild steel is investigated through polarization, EIS, XRD, and optical and SEM microscopy. The effect of all 3 species is huge material degradation with FeSx and FeCl3 and their complex as corrosion products. EIS data match the model of Randle circuit with Warburg resistance. Addition of more corrosion spec
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23

Lv, Shanglin, Kefei Li, Jie Chen, and Xiaobin Li. "Corrosion of High-Strength Steel Wires under Tensile Stress." Materials 13, no. 21 (October 27, 2020): 4790. http://dx.doi.org/10.3390/ma13214790.

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The stress corrosion cracking is the central issue for high-strength wires under high tensile stress used in civil engineering. This paper explores the resistance of stress corrosion cracking of three typical steel wires of high-strength carbon through a laboratory test, combining the actions of tensile stress and corrosive solution. Besides, the impact of tensile stress and immersion time are also investigated. During the tests, the wires were subject to electrochemical measurements of potentiodynamic polarization and electrochemical impedance spectroscopy, and the microstructure analysis was
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24

Gergely, András, Roland Locskai, Péter Szabó, Antal Krójer, and Tamás Kristóf. "Hydrogen Sulphide Corrosion of Carbon and Stainless Steel Alloys Immersed in Mixtures of Renewable Fuel Sources and Tested Under Co-processing Conditions." Hungarian Journal of Industry and Chemistry 44, no. 1 (October 1, 2016): 55–70. http://dx.doi.org/10.1515/hjic-2016-0007.

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Abstract In accordance with modern regulations and directives, the use of renewable biomass materials as precursors for the production of fuels for transportation purposes is to be strictly followed. Even though, there are problems related to processing, storage and handling in wide range of subsequent uses, since there must be a limit to the ratio of biofuels mixed with mineral raw materials. As a key factor with regards to these biomass sources pose a great risk of causing multiple forms of corrosion both to metallic and non-metallic structural materials. To assess the degree of corrosion ri
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25

Bernasovský, Peter. "Atypical Cases of Welded Structure Failures." Solid State Phenomena 270 (November 2017): 86–92. http://dx.doi.org/10.4028/www.scientific.net/ssp.270.86.

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First case describes hot temperature corrosion of 1.4841 heat resisting steel, which was caused by formation of the low melting nickel sulphide (LME effect).In the second case centrifugally cast tubes of Ø52.6 x 5.8 mm size made of 25/35 CrNi steel, which are exposed to high temperature and to severe reducing environment (carbon activity ac >> 1), are concerned. In such condition a graphitization may start, that results in the disintegration of its structure, which is called ,,metal dusting”.The third case is dealing with an attack of the 1.4301 steel pipe welds by microbiologically infl
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26

Cheng, Xiaoliang, Houyi Ma, Shenhao Chen, Xiao Chen, and Zhiming Yao. "Corrosion of nickel in acid solutions with hydrogen sulphide." Corrosion Science 42, no. 2 (February 2000): 299–311. http://dx.doi.org/10.1016/s0010-938x(99)00092-x.

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27

King, Fraser, Jian Chen, Zack Qin, David Shoesmith, and Christina Lilja. "Sulphide-transport control of the corrosion of copper canisters." Corrosion Engineering, Science and Technology 52, sup1 (April 28, 2017): 210–16. http://dx.doi.org/10.1080/1478422x.2017.1300363.

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28

Otero, T. F., and C. Achucarro. "Corrosion of mild steel in media containing sulphide ions." British Corrosion Journal 28, no. 3 (January 1993): 194–200. http://dx.doi.org/10.1179/000705993798318506.

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29

Bishop, Ian, and Steve Martucci. "WELL TUBULAR CORROSION IN THE COOPER/EROMANGA BASIN." APPEA Journal 31, no. 1 (1991): 404. http://dx.doi.org/10.1071/aj90034.

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In September 1987 the Della-1 gas well blew out at approximately 19.5m (64ft) abovesea level (42.7m (140 ft) KB) due to corrosion of the production casing and tubing.The production casing failure and other similar corrosion occurrences were considered to be due to sulphate-reducing bacteria which have been identified in a large number of wells in the Cooper Basin. It was considered possible that iron sulphide was being deposited on the casings in the surface-to-production casing annulus at the air/water interface promoting the formation of anodic sites and therefore corrosion.Further investiga
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30

Chen, J., Z. Qin, and D. W. Shoesmith. "The Mechanism of Sulphide Film Growth on Copper in Anaerobic Sulphide Solutions Under Natural Corrosion Conditions." Innovations in Corrosion and Materials Science (Formerly Recent Patents on Corrosion Science) 8, no. 2 (January 17, 2019): 108–12. http://dx.doi.org/10.2174/2352094909666181126152106.

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31

Grzesik, Z. "On the mechanism of high-temperature sulphide corrosion of niobium and transport properties of niobium sulphide." Solid State Ionics 154-155 (December 2, 2002): 387–92. http://dx.doi.org/10.1016/s0167-2738(02)00577-5.

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32

Grzesik, Z., and S. Mrowec. "High Temperature Corrosion of Metallic Materials in Composed Oxidizing Environments." High Temperature Materials and Processes 31, no. 4-5 (October 30, 2012): 539–51. http://dx.doi.org/10.1515/htmp-2012-0091.

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AbstractBasing on actual theoretical approach and experimental results, the mechanism of sulphide formation beneath the oxide scale grown on metals in SO2-O2 atmospheres has been described. It has been shown that in spite of much lower sulphur partial pressure in the oxidizing atmosphere than the dissociation pressure of the sulphide to be formed, the sulphidation process takes place beneath the oxide scale. This, at the first sight, unexpected behavior results from the fact that sulphur is diffusing inwards through the primary oxide scale in the molecular form, i.e. SO2 molecules. Reaching th
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33

Pacheco Fernández, Micaela, Thorsten Knutz, and Matthias Barjenbruch. "Multi-parameter calibration of a UV/Vis spectrometer for online monitoring of sewer systems." Water Science and Technology 82, no. 5 (August 21, 2020): 927–39. http://dx.doi.org/10.2166/wst.2020.398.

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Abstract UV/Vis spectrometers are powerful tools for online monitoring of wastewater constituents and processes. However, most studies only focus on typical parameters such as chemical oxygen demand (COD) and total suspended solids. This work presents a multi-parameter approach for calibration of a UV/Vis spectrometer for online monitoring of sewer systems. Parameters studied include soluble and total COD, nitrate, ammonium, sulphate and orthophosphate, as well as total dissolved sulphide, bisulphide and hydrogen sulphide, because they are one of the main causes for odour and corrosion in sewe
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34

Boon, Arthur G. "Septicity in sewers: causes, consequences and containment." Water Science and Technology 31, no. 7 (April 1, 1995): 237–53. http://dx.doi.org/10.2166/wst.1995.0240.

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This paper reviews research and development on the causes, consequences and methods of controlling septicity in sewers. It draws on information given in 57 published papers on the subject. Explanations are given on the deviation of equations used to predict critical conditions in sewers and rising mains. The consequences of septicity, including toxicity, corrosion and odour nuisance, are described and discussed. Prevention is always recommended over cure, but where this cannot be achieved the methods of controlling septicity generally rely on maintaining an adequate supply of oxygen (dissolved
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35

Barzyk, W., P. Wandzilak, and A. Pomianowski. "Electrochemical Corrosion of Copper and Copper Sulphide in Acidic Solutions." Key Engineering Materials 20-28 (January 1991): 311–17. http://dx.doi.org/10.4028/www.scientific.net/kem.20-28.311.

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36

Tsay, L. W., W. L. Lin, S. W. Cheng, and G. S. Leu. "Hydrogen sulphide stress corrosion cracking of 2.25Cr-Mo steel weldments." Corrosion Science 39, no. 7 (July 1997): 1165–76. http://dx.doi.org/10.1016/s0010-938x(97)00015-2.

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37

Xie, Xuejun, Lijun Du, Ling Pan, Shunan Cao, Min Yan, and Wanqin Yang. "Effect of sulphide in water on corrosion of copper alloys." Anti-Corrosion Methods and Materials 54, no. 1 (January 16, 2007): 34–36. http://dx.doi.org/10.1108/00035590710717375.

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38

Shanlin, W., C. Shanben, Y. Seonghoon, and K. Liming. "Effects of sulphide on pit corrosion in metallic glass steel." Materials Research Innovations 18, sup2 (May 2014): S2–638—S2–641. http://dx.doi.org/10.1179/1432891714z.000000000475.

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39

Feng, Y., S. Hu, D. Wang, J. Liu, and C. Zhang. "Effects of ultrasonic peening treatment on hydrogen sulphide corrosion behaviour." Surface Engineering 33, no. 9 (July 27, 2016): 696–705. http://dx.doi.org/10.1080/02670844.2016.1212530.

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40

Rauscher, Á., and Z. Lukáacs. "Effect of hydrogen sulphide on The corrosion behaviour of titanium." Materials and Corrosion 38, no. 6 (June 1987): 326–29. http://dx.doi.org/10.1002/maco.19870380606.

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41

Chen, J., Z. Qin, T. Martino, and D. W. Shoesmith. "Effect of chloride on Cu corrosion in anaerobic sulphide solutions." Corrosion Engineering, Science and Technology 52, sup1 (April 28, 2017): 40–44. http://dx.doi.org/10.1080/1478422x.2016.1271161.

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42

SZYPROWSKI, A. J. "Sulphide corrosion of alloy steels in chloride solutions: potentiokinetic investigations." British Corrosion Journal 33, no. 2 (January 1998): 103–10. http://dx.doi.org/10.1179/bcj.1998.33.2.103.

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43

Danielewski, Marek, and Stanisllstrok;aw Mrowec. "High temperature sulphide corrosion of manganese and MnNb Alloys." Materials Science and Engineering 87 (March 1987): 89–97. http://dx.doi.org/10.1016/0025-5416(87)90364-8.

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44

Schmid, Alexander, Gregor Mori, and Roland Haubner. "Metallographic Documentation of the Degradation of Iron and Nickel Based Alloys in HCl and H2S Containing Environments, between 480 – 680 °C." Defect and Diffusion Forum 405 (November 2020): 26–32. http://dx.doi.org/10.4028/www.scientific.net/ddf.405.26.

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Corrosion behavior of the alloys 1.7386 (P9), 1.4462, 1.4841, 1.4959 (Alloy 800HT) and 2.4816 (Alloy 600) was tested for 24, 72 and 240 h between 480 – 680 °C. The testing gas atmosphere contained 3.8 vol. % HCl, 200 ppm H2S and CO, CO2 and N2. It simulated conditions present in a thermal cracking process for post-consumer plastics. Samples were analyzed by metallography, SEM/EDX and XRD after corrosion experiments. Additionally, their mass loss during the test was evaluated. A multilayered structure of corrosion products grew on the samples during the corrosion experiments. The composition of
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45

Iurchenko, Valentyna, Volodymyr Sierohlazov, Oksana Melnikova, Olena Bryhada, and Larysa Mykhailova. "Hydrogen Sulphide in Industrial Enterprises Water Management Infrastructure - The Factor of Chemical and Microbiological Corrosion Concrete Degradation of Water Facilities." Materials Science Forum 1038 (July 13, 2021): 401–6. http://dx.doi.org/10.4028/www.scientific.net/msf.1038.401.

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The durability of concrete, the material which is widely used for water facilities depends on accumulation in operational environments (drain water, air-gas space) of hydrogen sulfide. Now the mechanism of corrosion destruction of concrete in drainage pipelines is represented as result of biogenous sulphuric acid aggression – influence of the sulphuric acid formed by thionic bacteria. The analysis of data on H2S concentration in drain waters of various industrial enterprises demonstrates that they create in gaseous operational media H2S concentration, sufficient for development in aerobic cond
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46

Wang, Chun Guang, Dong Zhe Wang, Hai Ding Liu, Wei Liu, Yan Mo, and Jin Hui Song. "Corrosion Behavior of 718 Nickel Base Alloy in Acid Saline Solution Containing H2S and CO2." Materials Science Forum 852 (April 2016): 90–94. http://dx.doi.org/10.4028/www.scientific.net/msf.852.90.

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To resolve the materials corrosion problems during exploiting high H2S/CO2 oil and gas field, the corrosion behavior of 718 nickel base alloy for 720 hours was studied, the conditions of the experiment is about temperature=177°C, P(H2S)=3.0MPa, P(CO2)=13.5MPa, solution mixed NaCl 20%wt.. The Electronic Parts Manufacturers Association (EPMA) and electrochemical methods was applied to characterize the microstructure, chemical composition and impedance characteristics of corrosion film. The results show that the surface of corrosion film is mainly composition by sulphide of Ni, Cr and Fe, the ins
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47

Doyle, Garry, Michael V. Seica, and Murray WF Grabinsky. "The role of soil in the external corrosion of cast iron water mains in Toronto, Canada." Canadian Geotechnical Journal 40, no. 2 (April 1, 2003): 225–36. http://dx.doi.org/10.1139/t02-106.

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External corrosion is a major factor contributing to the deterioration of cast iron water mains; it weakens the pipe wall, which increases the risk of failure. External corrosion is a function of the interaction between the pipeline and the soil that surrounds it. The aggressiveness of soil towards cast iron is affected by soil properties such as resistivity, pH, and the presence of sulphate reducing bacteria. Water main sections and accompanying soil samples were collected from locations across Toronto within the framework of a comprehensive research project over a 2 year period. After carefu
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48

Alekseeva, Ekaterina, Lyudmila Galata, Andrey Lapechenkov, and Mark Kovalev. "Evaluation of Corrosion Resistance of Nickel-based Alloy EP718 for use in Hydrogen Sulphide Containing Environment." E3S Web of Conferences 225 (2021): 03001. http://dx.doi.org/10.1051/e3sconf/202122503001.

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Nickel-based alloys cover a wide range of oil and gas applications. Alloy EP718 is used as an analogue of alloy 718. The corrosion resistance of EP718 has been determined in severe environmental conditions of NACE level VI over 3 months (175°С, PCO2 = 3.5 MPa, PH2S = 3.5 MPa, pH 3.5, 20% NaCl). The effects of heat treatment on the corrosion rate were studied. The results indicate that the corrosion rate of EP718 in a simulated environment is less than 0.01 mm per year. Stress corrosion cracking could be observed in low quality production and incorrect heat treatment.
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49

Lopes, F. A., S. Perrin, and D. Féron. "A dual-electrochemical cell to study the biocorrosion of stainless steel." Water Science and Technology 55, no. 8-9 (April 1, 2007): 499–504. http://dx.doi.org/10.2166/wst.2007.296.

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The presence of microorganisms on metal surfaces can alter the local physical/chemical conditions and lead to microbiologically influenced corrosion (MIC). The goal of the present work was to study the effect of a mixed aerobic–anaerobic biofilm on the behaviour of stainless steel (316 L) in underground conditions. Rather than testing different bacteria or consortia, investigations were based on the mechanisms of MIC. Mixed biofilms were simulated by the addition of glucose oxidase to reproduce the aerobic conditions and by sulphide or sulphate-reducing bacteria (SRB) for the anaerobic conditi
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50

Mazlan, Siti Nur Farhana, Azzura Ismail, Lokman Mohd Noh, and Sufizar Ahmad. "Failure Analysis on Heat Exchanger Tube Bundle Exposed to Naphthenic Acid Corrosion." Key Engineering Materials 791 (November 2018): 95–101. http://dx.doi.org/10.4028/www.scientific.net/kem.791.95.

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Naphthenic acid is a sort of organic acid which present in crude oil and cause severe corrosion in certain circumstances. This type of acid will lead to the corrosion phenomenon known as naphthenic acid corrosion (NAC). Damage mechanism by NAC attack can be analysed using Scanning Electron Microscope (SEM), Electron-dispersive X-ray (EDX) and X-ray Diffraction (XRD). These characterization methods aim to observe the morphology, element content, and crystal structure of the NAC. The objective of this research is to apply failure analysis (FA) on heat exchanger (HE) tube bundle made form stainle
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