Role of Bayer solution concentration and temperature in stress corrosion cracking susceptibility of steel

Pal, Sarvesh; Ibrahim, Raafat N

doi:10.1016/j.corsci.2011.05.005

Cited by 5 publications

(2 citation statements)

References 32 publications

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“…Mackinawite is porous and offers no protection, thereby leading to high corrosion rates. Earlier studies have discussed hydrogen-induced cracking (HIC), sulphide stress cracking (SSC) and the effects of environmental factors (e.g., reaction temperature, H 2 S pressure, solution medium and pH) on corrosion [7][8][9], and results obtained present significant impacts on engineering applications. However, the mechanisms by which corrosion is initiated and develops remain unclear.…”

Section: Introductionmentioning

confidence: 99%

Initiation and developmental stages of steel corrosion in wet H2S environments

et al. 2015

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Section: Introductionmentioning

confidence: 99%

Initiation and developmental stages of steel corrosion in wet H2S environments

et al. 2015

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“…The SCC failures are due to the fracture of metallic materials when they are subjected to stress in a corrosive solution that can be acidic, neutral or basic [1][2][3][4][5][6]. These failures are more likely in acidic media [7], and there are many studies on the effect of concentration [4,6], temperature [8], the stress in the metal [9], roughness [10] and the microstructure of the material [11,6].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical and Tension Tests Behavior of API 5L X60 Pipeline Steel in a Simulated Soil Solution

Quej-Aké

Galván-Martínez

Contreras-Cuevas

2013

MSF

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In this work electrochemical impedance spectroscopy (EIS) and slow strain rate tests (SSRT) were used for the evaluation of API 5L X60 carbon steel in contact with a simulated soil solution called NS4. EIS monitoring before and after performing the tension tests was carried out. SSRT were carried out in NS4 solution at room temperature to simulate dilute ground water that has been found associated with stress corrosion cracking (SCC) of low carbon steel pipelines. A strain rate of 1x10-6 sec-1 was used. According to the analysis of SSRT, the X60 pipeline steel is highly resistant to SCC. In order to perform the electrochemical test, two working electrodes were considered, a complete specimen, before the SSRT and a fractured specimen after the SSRT. The analyses of results show that the electrochemical response was different in each samples. The corrosion rate (CR) obtained by the two corrosion techniques revealed that the CR of the fractured specimen was higher than the CR of the complete specimen. This behavior is attributed to the fact that the fractured specimen present a high degree of tortuosity and this condition activate the corrosion process. In addition, according to the cathodic Tafel slope, the reduction reacction was influenced by a difusion process. A combine fracture type in SSRT was observed: ductil and brittle with a transgranular appearance. Some pits and internal cracks close to the fracture zone were observed. The failure process and mechanism of X60 steel in NS4 solution are controlled by dissolution and hydrogen embrittlement.

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Corrosion behavior of 16Mn low alloy steel in sulfide-containing Bayer solutions

Xie

Wen-mi

2014

Corrosion Science

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Role of Bayer solution concentration and temperature in stress corrosion cracking susceptibility of steel

Cited by 5 publications

References 32 publications

Initiation and developmental stages of steel corrosion in wet H2S environments

Initiation and developmental stages of steel corrosion in wet H2S environments

Electrochemical and Tension Tests Behavior of API 5L X60 Pipeline Steel in a Simulated Soil Solution

Corrosion behavior of 16Mn low alloy steel in sulfide-containing Bayer solutions

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