The effect of temperature and H 2 S content on the cracking resistance of a 13% chromium martensitic stainless steel in acidified NaCl

Turnbull, A.; May, A.T.

doi:10.1016/0010-938x(90)90030-9

Cited by 10 publications

(2 citation statements)

References 3 publications

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“…Making the comparison with steels, a number of authors have demonstrated a reduction in ductility [30,31], and a reduction in the notch tensile strength with increasing hydrogen concentration introduced electrolytically [23,32]. However, there are mixed results when observations are made on how the yield strength, hardening behaviour or ultimate tensile strength respond to the introduction of hydrogen [31].…”

Section: Hydrogen Embrittlement Testingmentioning

confidence: 99%

Hydrogen-induced brittle fracture in nickel based alloy 82 weld metal

et al. 2019

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Alloy 82 weld metal is sensitive to hydrogen assisted fracture and low-temperature crack propagation.Novel ex-situ and in-situ mechanical testing, and hydrogen charging techniques were combined with post-test fractography to investigate this effect. Electrolytic hydrogen charging followed by mechanical testing confirmed a reduction in the elongation to failure and fracture strength. The reduction in mechanical behaviour correlated with the transition from ductile to inter-granular (IG), inter-dendritic (ID), and cleavage-type brittle fracture modes. In-situ low temperature crack propagation testing at 54°C confirmed the presence of brittle inter-granular fracture as a result of hydrogen absorbed during exposure to the aqueous test environment.

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Section: Hydrogen Embrittlement Testingmentioning

confidence: 99%

Hydrogen-induced brittle fracture in nickel based alloy 82 weld metal

et al. 2019

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“…However, despite of their high corrosion resistance in these environments, some failures of this type of stainless steels have been found in service (2,3). In most cases, failures are related to hydrogen embrittlement induced by the presence of hydrogen sulphide (H 2 S), uniform and pitting corrosion (1,3,4), but the associated corrosion mechanisms are not completely unveiled (5)(6)(7)(8). One of the most commonly used practices to fight corrosion is the use of organic inhibitors because they can effectively retard the corrosion of steel through forming a compact barrier film between steel surface and corrosive medium (9)(10)(11)(12).…”

Section: Introductionmentioning

confidence: 99%

Use of an imidazol synthetized from palm oil as a corrosion inhibitor for a supermartensitic stainless steel in H₂S

Carmona-Hernández

Vázquez‐Vélez²,

Uruchurtu-Chavarı́n

et al. 2019

Green Chemistry Letters and Reviews

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A no-ionic gemini surfactant, namely bis(2-((2-palmitoamidoetil) amino) etil) 1H-imidazol-4,5dicarboxilate, was synthesized from the fatty acids contained in the palm oil and evaluated as corrosion inhibitor for UNS S41425 type supermartensitic stainless steel in presence of H 2 S. Used techniques involved potentiodynamic polarization curves, linear polarization resistance and electrochemical impedance measurements. Additionally, the obtained inhibitor was characterized by Infrared and 1H, 13C RMN spectroscopy. Results have shown that the corrosion rate of the steel was markedly decreased by the addition of the imidazole-type of inhibitor, reaching its maximum efficiency at certain inhibitor concentration, decreasing with a further increase in its concentration. This decrease in the corrosion rate was due to the physical adsorption of the inhibitor on to the steel surface following a Langmuir type of adsorption isotherm, affecting both anodic and cathodic reactions.

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Testing and Modelling for Prediction of Hydrogen Embrittlement

Turnbull

2001

Ageing Studies and Lifetime Extension of Materials

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Acritical evaluation of testing and modelling for prediction ofhydrogen embrittlement has been Wldertaken. Exposure time, temperature excursions and mechanical test method are shown to be factors which affect the reliable experimental determination of threshold stress/stress intensity factor for cracking and cmck growth rates. In relation to test time, the key issue is the distance of the site ofcracking from the primary source of hydrogen atoms, which will be influenced by exposure conditions, test specimen configuration and activity of the alloy. In some systems very long tests may be inevitable to ensure steadystate hydrogen uptake has been attained. Excursions from high to low temperature can be important in service and have been shown to be of significance in laboratory testing, but further studies are required Mechanical test methods based on dynamic straining will provide a more conservative estimate of the threshold stress/stress intensity factor for cmcking. It is concluded that guidelines for hydrogen embrittlement testing are needed to complement existing test standards.Mechanistic modelling ofhydrogen embrittlement threshold and crack growth kinetics is fundamentally challenging. Analytical models have been developed but with questionable assumptions and a limited range ofapplication. The primary obstacle is the need to predict the time-dependent distribution of hydrogen atoms at the cmck tip as a function of test and operational variables. Progress has been made but existing models have limitations. Nevertheless, if further progress is to be made it is in the development of more robust models of crack-tip hydrogen coupled with a criterion for failure.

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The effect of temperature and H 2 S content on the cracking resistance of a 13% chromium martensitic stainless steel in acidified NaCl

Cited by 10 publications

References 3 publications

Hydrogen-induced brittle fracture in nickel based alloy 82 weld metal

Hydrogen-induced brittle fracture in nickel based alloy 82 weld metal

Use of an imidazol synthetized from palm oil as a corrosion inhibitor for a supermartensitic stainless steel in H₂S

Testing and Modelling for Prediction of Hydrogen Embrittlement

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The effect of temperature and H 2 S content on the cracking resistance of a 13% chromium martensitic stainless steel in acidified NaCl

Cited by 10 publications

References 3 publications

Hydrogen-induced brittle fracture in nickel based alloy 82 weld metal

Hydrogen-induced brittle fracture in nickel based alloy 82 weld metal

Use of an imidazol synthetized from palm oil as a corrosion inhibitor for a supermartensitic stainless steel in H2S

Testing and Modelling for Prediction of Hydrogen Embrittlement

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Product

Resources

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Use of an imidazol synthetized from palm oil as a corrosion inhibitor for a supermartensitic stainless steel in H₂S