Hydrogen damage of steels: A case study and hydrogen embrittlement model

Djukic, Milos B.; Zeravcic, Vera Sijacki; Bakić, Gordana; Sedmak, Aleksandar; Rajičić, Bratislav

doi:10.1016/j.engfailanal.2015.05.017

Cited by 252 publications

(66 citation statements)

References 33 publications

(38 reference statements)

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“…Quasi‐cleavage fracture in Figure C proves the role of the HEDE model . The main difference between the conditions in Figures A and B is whether hydrogen has accumulated around the dislocation before the dislocation transport. When hydrogen has accumulated around dislocations, hydrogen can move with dislocations.…”

Section: Discussionmentioning

confidence: 98%

“…They believed that hydrogen would lead to more vacancies during stretching and that heat treatment could dissolve these vacancies, thus restoring HE to a certain extent. In fact, the hydrogen‐induced degradation of pure iron can be explained by the HELP model and the HEDE model . According to the HELP model, hydrogen transport by dislocation and hydrogen trapping at dislocation barriers can increase of dislocation mobility under stress.…”

Section: Discussionmentioning

confidence: 99%

“…HELP and HEDE simultaneously enhanced hydrogen‐induced fracture at high strain rate. Djukic et al also concluded that simultaneous action of HELP and HEDE was detected and confirmed to be active, depending on the local concentration of hydrogen in the investigated steel. Smiyan et al observed that 16GNM metal with [H]⩾7 ppm was susceptible to HE.…”

Section: Introductionmentioning

confidence: 89%

“…In fact, the hydrogen-induced degradation of pure iron can be explained by the HELP model and the HEDE model. 16,26 According to the HELP model, hydrogen transport by dislocation and hydrogen trapping at dislocation barriers can increase of dislocation mobility under stress. The increased of dislocation mobility can increase the probability of blocking in dislocation slip bands.…”

Section: Mechanism Of Hydrogen-induced Degradationmentioning

confidence: 99%

See 3 more Smart Citations

Effects of hydrogen on the mechanical response of X80 pipeline steel subject to high strain rate tensile tests

Zheng

Zhang

Shi

et al. 2019

Fatigue Fract Eng Mat Struct

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Hydrogen‐induced degradation of X80 pipeline steel was investigated through a high strain rate tensile test (2 × 10−4/s) with interposed unloading, reloading, aging at 30°C, or annealing at 200°C with or without hydrogen charging. The results indicated that plasticity degradation does not occur in the hydrogen‐precharged specimens; however, hydrogen embrittlement occurs in the reloading stage when the specimens are charged with hydrogen in the unloading stage after applying a prestrain. Interposed aging at 30°C or annealing at 200°C can also increase the degradation. It indicates that the hydrogen traps caused by the strain along with hydrogen charging are the major source of dislocations. The formation of a hydrogen atmosphere around mobile dislocations, which is related to the rates of hydrogen diffusion and dislocation movement, plays an important role in the degradation process. Both pinning and depinning of dislocations affect plasticity degradation.

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Section: Discussionmentioning

confidence: 98%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 89%

Section: Mechanism Of Hydrogen-induced Degradationmentioning

confidence: 99%

See 2 more Smart Citations

Effects of hydrogen on the mechanical response of X80 pipeline steel subject to high strain rate tensile tests

Zheng

Zhang

Shi

et al. 2019

Fatigue Fract Eng Mat Struct

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show abstract

“…As is known, hydrogen interacts differently with metals, depending on the temperature and pressure exerted on the structure. The introduction of hydrogen into metals and alloys can take place by one of two qualitatively different mechanisms [10]: 1.As a result of low temperature electrochemical processes with the participation of hydrogen ions, which are reduced and absorbed by steel. At low temperatures (i.e.…”

Section: Introductionmentioning

confidence: 99%

Finite Element Modeling of the Behavior of a Hollow Cylinder in a Hydrogen-Containing Environment

Lakhdari

Bubnov

Seddak

et al. 2019

Frattura Ed Integrità Strutturale

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Review on bipolar plates for low‐temperature polymer electrolyte membrane water electrolyzer

Husaini

Alshami

Goh

et al. 2021

Intl J of Energy Research

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Summary Electrolysis coupled with renewable energy resources is the most promising method for green hydrogen production. Polymer electrolyte membrane water electrolyzer (PEMWE) has attracted attention due to its ability to produce high‐purity, compressed hydrogen at relatively mild operating temperatures (70°C‐90°C). The highest cost contributor of the PEMWE stack are the bipolar plates (BPPs). Owing to the severe operating conditions (acidity from the membrane and high localized oxygen concentration) of the PEMWE stack, appropriate material and fabrication are crucial to ensure high performance and durability. The role of BPPs in mass transport and electrical charge transfer must be further understood and correlated to its specific application in PEMWE. At the most basic level, BPPs must have low interfacial contact resistance and high corrosion resistance to withstand the conditions within the stack. The most common base materials for BPP construction include austenitic stainless steel (SS316 and SS403) and Ti due to their flexural strength and ease of mass production. A coating layer is also necessary to protect the substrate from corrosion, and the most popular materials include TiN and other noble metals with nonpassivated oxides and reliable electrical conductivity. The compromise between material robustness and cost is currently a delicate balance toachieve.

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Hydrogen damage of steels: A case study and hydrogen embrittlement model

Cited by 252 publications

References 33 publications

Effects of hydrogen on the mechanical response of X80 pipeline steel subject to high strain rate tensile tests

Effects of hydrogen on the mechanical response of X80 pipeline steel subject to high strain rate tensile tests

Finite Element Modeling of the Behavior of a Hollow Cylinder in a Hydrogen-Containing Environment

Review on bipolar plates for low‐temperature polymer electrolyte membrane water electrolyzer

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