Quantification of Temperature Dependence of Hydrogen Embrittlement in Pipeline Steel

Xing, Xiao; Zhou, Jiayu; Zhang, Shouxin; Zhang, Hao; Li, Zili; Li, Zhenjun

doi:10.3390/ma12040585

Cited by 16 publications

(6 citation statements)

References 42 publications

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“…The atomistic mechanism for HE has been under investigation for the past several decades [26]. The following three theories of HE are widely referenced in the literature: 1) hydrogenenhanced decohesion (HEDE), which postulates that hydrogen atoms trapped near a crack reduces the free surface energy, thus facilitating cleavage-like failure [27,28]; 2) hydrogen-enhanced localized plasticity (HELP), which suggests that solute hydrogen enhances dislocation movements [29], and 3) adsorption-induced dislocation emission (AIDE), which hypothesizes that the adsorption of hydrogen facilitates the dislocation nucleation [30,31].…”

Section: Nnphscc On Pipelinesmentioning

confidence: 99%

See 1 more Smart Citation

A review of crack growth models for near-neutral pH stress corrosion cracking on oil and gas pipelines

Sun

Zhou

Kang

2021

J Infrastruct Preserv Resil

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This paper presents a review of four existing growth models for near-neutral pH stress corrosion cracking (NNpHSCC) defects on buried oil and gas pipelines: Chen et al.’s model, two models developed at the Southwest Research Institute (SwRI) and Xing et al.’s model. All four models consider corrosion fatigue enhanced by hydrogen embrittlement as the main growth mechanism for NNpHSCC. The predictive accuracy of these growth models is investigated based on 39 crack growth rates obtained from full-scale tests conducted at the CanmetMATERIALS of Natural Resources Canada of pipe specimens that are in contact with NNpH soils and subjected to cyclic internal pressures. The comparison of the observed and predicted crack growth rates indicates that the hydrogen-enhanced decohesion (HEDE) component of Xing et al.’s model leads to on average reasonably accurate predictions with the corresponding mean and coefficient of variation (COV) of the observed-to-predicted ratios being 1.06 and 61.2%, respectively. The predictive accuracy of the other three models are markedly poorer. The analysis results suggest that further research is needed to improve existing growth models or develop new growth models to facilitate the pipeline integrity management practice with respect to NNpHSCC.

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Section: Nnphscc On Pipelinesmentioning

confidence: 99%

“…It follows from Eq. ( 6) that da/dN is given by Based on fitting to the experimental data of the X65 and X52 steels [34,54,55], Xing et al [28] recommended that γ be taken as 0.1 and n be taken as 0.92 and 0.88 for the X65 and X52 steels, respectively. It follows that the combined parameter in Xing et al…”

Section: Xing Et Al's Modelmentioning

confidence: 99%

A review of crack growth models for near-neutral pH stress corrosion cracking on oil and gas pipelines

Sun

Zhou

Kang

2021

J Infrastruct Preserv Resil

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“…Among all the hydrides, niobium, vanadium, anzirconium have been considered [19]. Another theory named surface energy theory postulated that hydrogen absorption decreases the energy of the fracture surface during crack propagation, thus lowering the work of fracture [20]. The hydrogen enhanced decohesion (HEDE) mechanism-also known as hydrogen induced decohesion (HID) mechanism-states that hydrogen concentration at the crack tip lowers the cohesive energy of the lattice, thus decreasing the fracture toughness [21][22][23].…”

Section: Introductionmentioning

confidence: 99%

“…Hydrogen supply at the crack tip has to be granted to support crack propagation, and thus its growth rate is mainly governed by the hydrogen transport rate, the applied stress, and steel intrinsic susceptibility [19,[48][49][50]. In any case, there is a general agreement that hydrogen must be continuously supplied and the hydrogen atoms are mainly transported by hydrostatic stresses until critical accumulation occurs at the crack tip [20,[51][52][53].…”

Section: Introductionmentioning

confidence: 99%

Hydrogen Permeation in X65 Steel under Cyclic Loading

et al. 2020

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This experimental work analyzes the hydrogen embrittlement mechanism in quenched and tempered low-alloyed steels. Experimental tests were performed to study hydrogen diffusion under applied cyclic loading. The permeation curves were fitted by considering literature models in order to evaluate the role of trapping—both reversible and irreversible—on the diffusion mechanism. Under loading conditions, a marked shift to the right of the permeation curves was noticed mainly at values exceeding the tensile yield stress. In the presence of a relevant plastic strain, the curve changes due to the presence of irreversible traps, which efficiently subtract diffusible atomic hydrogen. A significant reduction in the apparent diffusion coefficient and a considerable increase in the number of traps were noticed as the maximum load exceeded the yield strength. Cyclic loading at a tensile stress slightly higher than the yield strength of the material increases the hydrogen entrapment phenomena. The tensile stress causes a marked and instant reduction in the concentration of mobile hydrogen within the metal lattice from 55% of the yield strength, and it increases significantly in the plastic field.

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“…The pressure of hydrogen gas affects the sensitivity to embrittlement of steels for pipelines, with considerations for changes in the ductility of the steel tube with a slight loss of yield strength (Laureys et al, 2022;Li et al, 2022). The movement of the mixture, usually operating at constant pressure, generates static and cyclic mechanical loads, influencing the ductility and yield strength of the tube (Xing et al, 2019).…”

Section: Influence Of Hydrogen and Natural Gas Mixture Concentration Onmentioning

confidence: 99%

Green Hydrogen: Perspectives and Challenges in Using the Natural Gas Network in Ceará/Brazil

Castro,

Oliveira,

Lima

et al. 2024

GEP

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Climate change, mainly caused by the use of non-renewable fuels, has raised global concerns and led to the search for less polluting energy sources, making hydrogen a promising energy alternative with the potential to contribute to changes in the energy mix of various countries through the use of technologies that enable its production and use with low or zero carbon emissions. In this context, Brazil has aroused great interest from other countries in exploring its renewable resources for the production of hydrogen (green hydrogen). In this sense, the use of natural gas pipelines and the use of hydrogen in mixtures with natural gas have become the subject of studies due to their economically viable alternative for the immediate use of this energy vector. However, there are still technical and regulatory challenges regarding the integration of hydrogen into the existing natural gas pipeline network. In this context, the present study aims to address the effects of hydrogen interaction with the structure of natural gas pipeline steel and the regulatory barriers to the use of this network for the transportation of green hydrogen, particularly in the state of Ceará/Brazil. After extensive analysis of literature and regulatory documents, it was concluded that: 1) Ceará/Brazil has strong potential to meet the demand for green hydrogen through the use of solar and wind energy sources; 2) there is feasibility for the adaptation or conversion of natural gas infrastructure for the transportation of green hydrogen; 3) discussions regarding the regulatory competence of green hydrogen transportation and distribution through the natural gas network in Brazil are still incipient; 4) the current regulation of the natural gas industry can serve as a subsidy for the regulation of green hydrogen and natural gas transportation.

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Quantification of Temperature Dependence of Hydrogen Embrittlement in Pipeline Steel

Cited by 16 publications

References 42 publications

A review of crack growth models for near-neutral pH stress corrosion cracking on oil and gas pipelines

A review of crack growth models for near-neutral pH stress corrosion cracking on oil and gas pipelines

Hydrogen Permeation in X65 Steel under Cyclic Loading

Green Hydrogen: Perspectives and Challenges in Using the Natural Gas Network in Ceará/Brazil

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Quantification of Temperature Dependence of Hydrogen Embrittlement in Pipeline Steel

Cited by 16 publications

References 42 publications

A review of crack growth models for near-neutral pH stress corrosion cracking on oil and gas pipelines

A review of crack growth models for near-neutral pH stress corrosion cracking on oil and gas pipelines

Hydrogen Permeation in X65 Steel under Cyclic Loading

Green Hydrogen: Perspectives and Challenges in Using the Natural Gas Network in Cear&#225;/Brazil

Contact Info

Product

Resources

About

Green Hydrogen: Perspectives and Challenges in Using the Natural Gas Network in Ceará/Brazil