Slow strain rate testing for monitoring cracking of mild steels for vessels and pipes for processing using caustic solutions

Saxena, Abhishek; Raman, R.K. Singh; Muddle, Barry C.

doi:10.1016/j.ijpvp.2006.02.018

Cited by 10 publications

(5 citation statements)

References 12 publications

(13 reference statements)

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“…This fact can be explained by carbon amount (studies showed that low carbon steel is very sensitive to corrosion in high alkalinity medium [13]) that leads to different microstructure.…”

Section: Influence Of Steel Characteristicsmentioning

confidence: 99%

Electrochemical behaviour and corrosion sensitivity of prestressed steel in cement grout

Blactot¹,

Brunet-Vogel²,

Farcas³

et al. 2007

WIT Transactions on Engineering Sciences, Vol 54

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The durability of prestressed concrete bridges primarily depends on the steel wire cables. Several disorders in these bridges are well known, such as fracture of these cables by stress corrosion cracking due to water penetration in the prestressing ducts. This water can contain various aggressive constituents with respect to corrosion (like chlorides). Its penetration inside the duct is due to the presence of sealing defects of the structure or in the concrete (like cracks). The second category of defects relates to the cement grout injection, which protects cables. This occurs due to a degradation of the grout in contact with water (problems of bleeding and segregation) leading to brittle fractures of steels. The first step of the study consisted in obtaining a corrosive liquid typical of a segregated cement paste on which electrochemical tests were done. Electrochemical tests in synthetic solutions defined from a bibliographical study and analysis of real cases of segregated cement grout were also realized. High strength and ordinary steel specimens were used and all the tests were mainly done in deaerated conditions. The main results can lead one to consider that, in oxygen free conditions, steel specimens surface can be either in active or passive state. The susceptibility of steels to stress corrosion cracking was determined by the means of models applied to potentiodynamic polarisation.

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“…This fact can be explained by carbon amount (studies showed that low carbon steel is very sensitive to corrosion in high alkalinity medium [13]) that leads to different microstructure.…”

Section: Influence Of Steel Characteristicsmentioning

confidence: 99%

Electrochemical behaviour and corrosion sensitivity of prestressed steel in cement grout

Blactot¹,

Brunet-Vogel²,

Farcas³

et al. 2007

WIT Transactions on Engineering Sciences, Vol 54

View full text Add to dashboard Cite

show abstract

“…Because of the superior mechanical properties and very good corrosion resistance, 304 austenitic stainless steel (ASS) is widely used in petroleum, chemical, electric power and other industries [1,2]. However, they are prone to stress corrosion cracking (SCC) and localized pitting corrosion when served in complex harsh environments or certain applications.…”

Section: Introductionmentioning

confidence: 99%

Effect of Surface Treatment on the Stress Corrosion Cracking of 304 Austenitic Stainless Steels in Acid Chloride Solution

Huang

Zhu

et al. 2015

AMR

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A slow strain rate tensile (SSRT) test was used to investigate the effect of laser shock peening (LSP) on stress corrosion cracking (SCC) behavior of the 304 austenitic stainless steels (ASSs) in acid chloride solution. Mechanical properties and fracture morphology evolutions of the 304 ASSs were studied as a function of the pulse energies through slow speed tensile tester and scanning electron microscopy (SEM). The results showed that the percentage elongation after fracture increased significantly as the pulse energy rose. Fractographic examination revealed that all the samples appeared a tendency to SCC in the given conditions, but specimens treated by LSP had better resistance to stress corrosion.

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“…His results showed that corrosion rate is higher in 0.5M H 2 SO 4 environment than 3.5% NaCl throughout the entire period of investigation reaching a maximum of 22.2 mm/year and 0.158 mm/year respectively. Stress corrosion cracking (SCC) is the cracking indicated from the combined influence of tensile stress and a corrosive environment (Saxena et al, 2006). The required tensile stresses may be in the form of directly applied stress or in the form of residual stress (Afolabi, 2007).…”

Section: Introductionmentioning

confidence: 99%

Effect of induced stress on the corrosion rate of medium carbon steel in saline environment

Alo

Simeon

2015

J. Chem. Eng. Mater. Sci.

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This study investigated how 0.33% medium carbon steel is affected by induced stress in a saline environment. Three geometries namely U-bend, C-ring and I-shape samples were formed representing varying degrees of stress level induced on the samples. The test specimens were subjected to static loading in saline environment containing 15.0 wt.%, 10.0 wt.% and 3.5 wt.% of sodium chloride (NaCl) for a typical exposure time of 31 days at ambient conditions of temperature and pressure. Weight loss method was used to estimate the corrosion rate in mils per year (mpy). The results of the experiment show that corrosion rate is maximum in samples with the highest stress level and in medium containing highest amount of dissolved chloride ions. The least corrosion rate occurred in samples with the least amount of chloride ions and in a non-stressed condition. It was inferred that the corrosion rate of 0.33%C steels increased with increasing tensile stress and chloride ions content of the medium.

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Slow strain rate testing for monitoring cracking of mild steels for vessels and pipes for processing using caustic solutions

Cited by 10 publications

References 12 publications

Electrochemical behaviour and corrosion sensitivity of prestressed steel in cement grout

Electrochemical behaviour and corrosion sensitivity of prestressed steel in cement grout

Effect of Surface Treatment on the Stress Corrosion Cracking of 304 Austenitic Stainless Steels in Acid Chloride Solution

Effect of induced stress on the corrosion rate of medium carbon steel in saline environment

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