The Positive Role of Nanometric Molybdenum–Vanadium Carbides in Mitigating Hydrogen Embrittlement in Structural Steels

Peral, L.B.; Fernández-Pariente, I.; Colombo, Chiara; Rodríguez, Celestino; Belzunce, F. J.

doi:10.3390/ma14237269

Cited by 14 publications

(7 citation statements)

References 40 publications

(48 reference statements)

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“…The high HE susceptibility of the cast variant was attributed to the platelet structure of pearlite and H trapping at carbides, leading to increased H concentration. This observation seemingly contrasts with other research indicating a protective role of carbides as strong traps mitigating HE, as suggested by other authors. , …”

Section: Knowledge Base About Hecontrasting

confidence: 99%

“…This observation seemingly contrasts with other research indicating a protective role of carbides as strong traps mitigating HE, as suggested by other authors. 570,571 The 17−4 precipitation-hardened stainless steel fabricated via L-PBF exhibits a microstructural divergence from its conventionally produced counterpart, too. Typically, wrought 17−4 precipitation-hardened stainless steel has a martensitic microstructure.…”

Section: Bcc Iron and Steelsmentioning

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: Knowledge Base About Hecontrasting

confidence: 99%

Section: Bcc Iron and Steelsmentioning

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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“…The mean value can be even higher than that of the interstitial sites. Adding deep traps such as interfaces between carbides and the metal can bind internal hydrogen and protect the metal from hydrogen embrittlement [34][35][36][37] -as long as there is no external hydrogen source.…”

Section: Microstructural Contributions To Solubilities In the Low Con...mentioning

confidence: 99%

Hydrogen Interactions with Defects in Materials

Pundt,

Wagner

2024

Chemie Ingenieur Technik

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This manuscript summarizes basic properties of hydrogen in materials, mainly metals, and resulting consequences for the materials properties, including recent developments. It emphasises to introduce into the field of hydrogen in metals in a focused manner. It addresses hydrogen solution in materials, hydride formation, hydrogen diffusion and permeation and the interaction of hydrogen with defects. The influence of hydrogen on the defect energies and consequences for the metal behaviour are addressed. Further, the influence of constraint conditions on the system properties is shortly discussed.

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“…Hydrogen is generally considered a kind of point defect in metals and alloys, which can interact with other defects and significantly reduce the ductility of materials even when the H content is quite low. This phenomenon is known as hydrogen embrittlement (HE) [ 1 , 2 , 3 , 4 ]. The detrimental effect of H is a long-standing problem for structural materials.…”

Section: Introductionmentioning

confidence: 99%

Influence of the Hydrogen Doping Method on the Atomic Structure, Mechanical Properties and Relaxation Behaviors of Metallic Glasses

2023

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The interaction of metallic glasses (MGs) with hydrogen can trigger many interesting physical, chemical and mechanical phenomena. However, atomic-scale understanding is still lacking. In this work, molecular dynamics (MD) simulations are employed to study the atomic structure, mechanical properties and relaxation behaviors of H-doped Ni50Al50 MGs doped by two methods. The properties of H-doped MGs are determined not only by the hydrogen content but also by the doping method. When H atoms are doped into the molten state of samples, H atoms can fully diffuse and interact with metallic atoms, resulting in loose local atomic structures, homogeneous deformation and enhanced β relaxation. In contrast, when H atoms are doped into as-cast MGs, the H content is crucial in affecting the atomic structure and mechanical properties. A small number of H atoms has little influence on the elastic matrix, while the percolation of shear transformation zones (STZs) is hindered by H atoms, resulting in the delay of shear band (SB) formation and an insignificant change in the strength. However, a large number of H atoms can make the elastic matrix loose, leading to the decrease in strength and the transition of the deformation mode from SB to homogeneous deformation. The H effects on the elastic matrix and flow units are also applied to the dynamic relaxation. The deformability of H-doped Ni50Al50 MGs is enhanced by both H-doping methods; however, our results reveal that the mechanisms are different.

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The Positive Role of Nanometric Molybdenum–Vanadium Carbides in Mitigating Hydrogen Embrittlement in Structural Steels

Cited by 14 publications

References 40 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 Interactions with Defects in Materials

Influence of the Hydrogen Doping Method on the Atomic Structure, Mechanical Properties and Relaxation Behaviors of Metallic Glasses

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