Effect of temperature and erosion on pitting corrosion of X100 steel in aqueous silica slurries containing bicarbonate and chloride content

Mahdi, E.; Rauf, Abdul; Eltai, E.O.

doi:10.1016/j.corsci.2014.01.021

Cited by 57 publications

(17 citation statements)

References 29 publications

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“…Chloride ions was found to be aggressive to many metals, with their ability to increase the pit susceptibility [42,43], crevice corrosion [44,45] and uniform corrosion [46]. However, Alloy 800 showed good corrosion resistance in chloride solutions at the corrosion potential due to its self-passivation.…”

Section: At Corrosion Potentialmentioning

confidence: 99%

Understanding the interaction of thiosulfate with Alloy 800 in aqueous chloride solutions using SECM

Xia

Zhu

Behnamian

et al. 2015

Journal of Electroanalytical Chemistry

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Section: At Corrosion Potentialmentioning

confidence: 99%

Understanding the interaction of thiosulfate with Alloy 800 in aqueous chloride solutions using SECM

Xia

Zhu

Behnamian

et al. 2015

Journal of Electroanalytical Chemistry

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“…Recently, the petroleum industry has witnessed an outstanding demand for higher strength pipeline steels e.g., API X100 [32] in order to combat the more stringent environment in terms of erosion-corrosion. Mahdi et al [32] investigated the effect of temperature on erosion-enhanced pitting corrosion behaviour of API X100 steel. Their result showed that the pitting potential decreased, whereas the pitting current densities increased when the electrolyte temperature was increased from 22 • C to 35 • C. Several researchers [33][34][35] have investigated the corrosion behaviour of the API X100 steel material in different environments.…”

Section: Introductionmentioning

confidence: 99%

“…High-strength low-alloy (HSLA) steels are becoming the material of choice for the projects requiring larger pipelines because of their appreciably low price-to-yield ratio. API X70 and API X80 have been the commonly used pipeline steel grades due to their ability of withstanding the basic erosion-corrosive environment [31,32]. Recently, the petroleum industry has witnessed an outstanding demand for higher strength pipeline steels e.g., API X100 [32] in order to combat the more stringent environment in terms of erosion-corrosion.…”

Section: Introductionmentioning

confidence: 99%

“…API X70 and API X80 have been the commonly used pipeline steel grades due to their ability of withstanding the basic erosion-corrosive environment [31,32]. Recently, the petroleum industry has witnessed an outstanding demand for higher strength pipeline steels e.g., API X100 [32] in order to combat the more stringent environment in terms of erosion-corrosion. Mahdi et al [32] investigated the effect of temperature on erosion-enhanced pitting corrosion behaviour of API X100 steel.…”

Section: Introductionmentioning

confidence: 99%

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Erosion Behaviour of API X100 Pipeline Steel at Various Impact Angles and Particle Speeds

Okonkwo

Shakoor

Zagho

et al. 2016

Metals

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Abstract:Erosion is the gradual removal of material due to solid particle impingement and results in a failure of pipeline materials. In this study, a series of erosion tests were carried out to investigate the influence of particle speed and impact angle on the erosion mechanism of API X100 pipeline steel. A dry erosion machine was used as the test equipment, while the particle speed ranged from 20 to 80 m/s and impact angles of 30 • and 90 • were used as test parameters. The eroded API X100 steel surface was characterized using scanning electron microscope (SEM) and X-ray photoelectron spectroscopy (XPS). The weight loss and erosion rate were also investigated. The results showed that at a 90 • impact angle, a ploughing mechanism was occurring on the tested specimens, while material removal through low-angle cutting was the dominant mechanism at lower impact angles. Embedment of alumina particles on the target steel surface, micro-cutting, and low-angle cutting were observed at low impact angles. Therefore, the scratches, cuttings, and severe ploughings observed on some failed oil and gas pipelines could be attributed to the erosion mechanism.

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“…It prevents contact between more or less aggressive environment with metal. In case of mechanical damage of the passive layer, the coating is self-rebuilding [18][19][20][21][22][23][24][25][26]]. Animal products and biological substances are important corrosive environmental factors in agricultural industry.…”

Section: Introductionmentioning

confidence: 99%

Corrosion of 1.4110 stainless steel at nitrate acid at 323 K

Kruszewski

Lipiński

2018

Engineering for Rural Development

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Abstract. Corrosion is a common process of destroying construction materials. The material during these processes loses its properties, it causes deterioration of functions, loses its usefulness, applicability. One of the important aggressive environments in the agricultural industry is nitrogen, from which nitric acid may be formed. Due to high hardness and also a good resistance to abrasion and corrosion the 1.4110 steel is commonly used in industry as knife blades, machining tools, measuring tools, pump construction, valves. Stainless steel is steel with good resistance to homogeneous or local environmental attack. The aim of the research was to determine the corrosive wear of 1.4110 steel (X55Cr), corrosion resistance with martensitic microstructure using the Huey test. The tested steel contains 0.52 % C, 13.4 % Cr and 0.65 % Mo. The samples were weighed before start of the corrosion processes and after them. Samples were kept in nitric acid 65 % at temperature 323K. The holding times of the samples in nitric acid were 48, 96, 144, 192, 240, 288, 336, 384 hours. The percentage of mass losses was determined by the weight method. Each sample was examined metallographically using an optical microscope and the surface roughness test using a profilometer. The test results were analyzed in order to determine the corrosion rate of steel in mm/year and g/m2 as well as percentage mass loss and determine the corrosion resistance in this environment. After corrosion of the steel, the roughness has increased. Mass loss and corrosion velocity were presented by a linear function, but greater accuracy is obtained by using the 3rd degree polynomial. Then it was confirmed that as the holding time in boiling nitric acid increases, corrosive wear increases. Generally, the tested steel 1.4110 has a good corrosion resistance in the nitricacid environment.Keywords: steel, stainless steel, corrosion, corrosion rate, roughness. IntroductionIn technics corrosion mainly concerns metal materials and within them also iron alloys. Stainless steel is steel with good resistance to homogeneous or local environmental attack. Corrosion-resistant steels created have resistance only in specific conditions [1][2][3][4][5][6][7]. Their corrosion resistance depends i.a. on the chemical ingredients, microstructure, surface condition. Corrosion-resistant steels have at least 10.5 % chromium and a maximum of 1.2 % carbon, elements that conduce to forming of the surface layer (passive), with dense structure and consistent with the base, causing a jump of the chemical potential, it has a tendency to self-rebuilding and provides corrosion resistance. Along with the increasing content of the chromium, nickel, molybdenum the corrosion resistance is gaining. Corrosion is a phenomenon of material damage as a result of the chemical and electrochemical environment influence [8][9][10][11][12].In alloys and metals changes occur as a result of interaction with the surrounding environment. The corrosion process begins at the point of contact with the environme...

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Effect of temperature and erosion on pitting corrosion of X100 steel in aqueous silica slurries containing bicarbonate and chloride content

Cited by 57 publications

References 29 publications

Understanding the interaction of thiosulfate with Alloy 800 in aqueous chloride solutions using SECM

Understanding the interaction of thiosulfate with Alloy 800 in aqueous chloride solutions using SECM

Erosion Behaviour of API X100 Pipeline Steel at Various Impact Angles and Particle Speeds

Corrosion of 1.4110 stainless steel at nitrate acid at 323 K

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