Fully-coupled continuum damage model for simulation of plasticity dominated hydrogen embrittlement mechanisms

Depraetere, Robin; Waele, Wim De

doi:10.1016/j.commatsci.2021.110857

Cited by 22 publications

(28 citation statements)

References 72 publications

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“…Another option is to implement H directly in the Gurson model, which may be even more straightforward. In recent years, H informed Gurson model has attracted more attention, and several factors related to H, e.g., accelerated void nucleation, 710 accelerated void growth, 711 and reduced stress threshold for void coalescence, 712 have been implemented. More about this model will be elaborated in Section 3.4, which focuses on predictive models of HE.…”

Section: Crystal Plasticity Finite Elementmentioning

confidence: 99%

“…While the HESIV mechanism enjoyed great popularity over the past two decades, little follow-up study was conducted on H-informed Gurson modeling until 2019 711 and the concept has increased in popularity since then. [710][711][712]723 As mentioned in the previous section, an H-informed Gurson model is more about predictive modeling of HE than about mechanistic investigation, so the technical details of this approach will be presented in Section 3.4. We put here a brief discussion about aspects related to the basics of the mechanism.…”

Section: Chemical Reviewsmentioning

confidence: 99%

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Hydrogen Embrittlement as a Conspicuous Material Challenge─Comprehensive Review and Future Directions

Yu,

Díaz,

et al. 2024

Chem. Rev.

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Hydrogen is considered a clean and efficient energy carrier crucial for shaping the net-zero future. Large-scale production, transportation, storage, and use of green hydrogen are expected to be undertaken in the coming decades. As the smallest element in the universe, however, hydrogen can adsorb on, diffuse into, and interact with many metallic materials, degrading their mechanical properties. This multifaceted phenomenon is generically categorized as hydrogen embrittlement (HE). HE is one of the most complex material problems that arises as an outcome of the intricate interplay across specific spatial and temporal scales between the mechanical driving force and the material resistance fingerprinted by the microstructures and subsequently weakened by the presence of hydrogen. Based on recent developments in the field as well as our collective understanding, this Review is devoted to treating HE as a whole and providing a constructive and systematic discussion on hydrogen entry, diffusion, trapping, hydrogen–microstructure interaction mechanisms, and consequences of HE in steels, nickel alloys, and aluminum alloys used for energy transport and storage. HE in emerging material systems, such as high entropy alloys and additively manufactured materials, is also discussed. Priority has been particularly given to these less understood aspects. Combining perspectives of materials chemistry, materials science, mechanics, and artificial intelligence, this Review aspires to present a comprehensive and impartial viewpoint on the existing knowledge and conclude with our forecasts of various paths forward meant to fuel the exploration of future research regarding hydrogen-induced material challenges.

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Section: Crystal Plasticity Finite Elementmentioning

confidence: 99%

Section: Chemical Reviewsmentioning

confidence: 99%

Hydrogen Embrittlement as a Conspicuous Material Challenge─Comprehensive Review and Future Directions

Yu,

Díaz,

et al. 2024

Chem. Rev.

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“…In this case, on the fracture surface, in the area of crack initiation, we observe characteristic features known as the fish-eye crack [11,16]. Nowadays, models of hydrogen behaviour at the interface of the iron cell and iron carbide already exist [17,18]. These models are based on the ab initio method, where we model the behaviour at the level of atoms in the crystal lattice (Bravais lattice) [18].…”

Section: Introductionmentioning

confidence: 99%

Hydrogen Embrittlement and its Effect on Fatigue Life of Nitrided Steel in Gigacycle Fatigue: Analysis and Modelling

Major

2022

J. Phys.: Conf. Ser.

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This paper deals with the effect of hydrogen embrittlement on the fatigue life of steels. This phenomenon is typical for the gigacycle fatigue region, but we also encounter it in surface-treated materials. in which a subsurface crack initiation has occurred. In samples in which the fracture is affected by the presence of hydrogen embrittlement, subsurface fatigue crack initiation occurs. In this work we observe the change in toughness and local elastic modulus depending on the hydrogen diffusion of hydrogen over time.

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“…There is also significant works [ 8 , 9 , 10 , 11 ] performed during the last 20 years using multiscale modeling schemes that attempt to tackle the underlying physics of hydrogen interaction with steels.…”

Section: Introductionmentioning

confidence: 99%

“…In the modern literature [ 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 ] the following main mechanisms of the influence of hydrogen on the service characteristics of structural metals and alloys are considered and discussed hydrogen-enhanced decohesion (HEDE) and hydrogen-enhanced localized plasticity (HELP). Since over a wide range of hydrogen concentrations the enhancement in the mobility of dislocations was detected from very low to high, it can be concluded that the HELP mechanism might be active, but in varying degrees, depending on the concentration of hydrogen in metal.…”

Section: Introductionmentioning

confidence: 99%

Influence of Hydrogen on the Fracture Resistance of Pre-Strained Steam Generator Steel 22K

et al. 2022

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In the paper, experimental studies of the hydrogen and pre-strained effect on fracture resistance of steam generator steel 22K were carried out. Special cylindrical samples were loaded up to fracture under a uniaxial tensile test with different pre-strained degrees and hydrogen charged times of the material. Stress-strain curves «Si–ei» were plotted. The true strain «ei» in the local volume was determined using the method of optical-digital image correlation (ODIC). The results showed that the hydrogen influence is practically absent in the elastic area of strain. The fracture energy of steel 22K decreases under the hydrogen influence and pre-strain in all investigated cases. It is shown that during six months of air exposure, with the 0% pre-strained samples release almost all hydrogen. In pre-strained samples, the hydrogen concentration decreased by 1–3% compared to the initial values. This indicates that they have trapped hydrogen that cannot escape on its own. Hydrogen embrittlement (HE) indexes for 0% pre-strained samples at different levels of hydrogen-charging calculated by the strain and energy approaches are equal to each other. There is a difference in the values of the HE index depending on the hydrogen-charge time for pre-strained samples. This indicates that both strain and strength characteristics of the material, which are integrally taken into account in the energy approach, are sensitive to HE.

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Fully-coupled continuum damage model for simulation of plasticity dominated hydrogen embrittlement mechanisms

Cited by 22 publications

References 72 publications

Hydrogen Embrittlement as a Conspicuous Material Challenge─Comprehensive Review and Future Directions

Hydrogen Embrittlement as a Conspicuous Material Challenge─Comprehensive Review and Future Directions

Hydrogen Embrittlement and its Effect on Fatigue Life of Nitrided Steel in Gigacycle Fatigue: Analysis and Modelling

Influence of Hydrogen on the Fracture Resistance of Pre-Strained Steam Generator Steel 22K

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