FE simulation of hydrogen diffusion in duplex stainless steel

Olden, Vigdis; Saai, Afaf; Jemblie, Lise; Johnsen, Roy

doi:10.1016/j.ijhydene.2013.10.101

Cited by 86 publications

(41 citation statements)

References 13 publications

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“…where N T denotes the number of traps per unit volume and θ T the occupancy of the trap sites. Here, focus will be placed on reversible trapping sites at microstructural defects generated by plastic straining -dislocations; a key ingredient in the mechanics of hydrogen diffusion [11,12]. A phenomenological relation between the trap density and the equivalent plastic strain is established based on the permeation tests by Kumnick and Johnson [14],…”

Section: Coupled Mechanical-diffusion Through the Analogy With Heat Tmentioning

confidence: 99%

A cohesive zone framework for environmentally assisted fatigue

Busto

Betegón

Martínez‐Pañeda

2017

Engineering Fracture Mechanics

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Section: Coupled Mechanical-diffusion Through the Analogy With Heat Tmentioning

confidence: 99%

A cohesive zone framework for environmentally assisted fatigue

Busto

Betegón

Martínez‐Pañeda

2017

Engineering Fracture Mechanics

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“…Table shows the calculated results and the hydrogen diffusion coefficient is much larger than other works . This should be due to two factors, one is that the pre‐charging process was applied before hydrogen permeation test; the other one is the irreversible trapping effect introduced into the new model.…”

Section: Discussionmentioning

confidence: 88%

“…Table 1 shows the calculated results and the hydrogen diffusion coefficient is much larger than other works. [40,41] This should be due to two factors, one is that the pre-charging process was applied before hydrogen permeation test; the other one is the irreversible trapping effect introduced into the new model. The diffusivity is also calculated by the normal Fick's second law and the order of magnitudes of the results are very close to the other work (10 −13 m 2 s −1 ), which means the trapping part in the modified model affect the value of Figure 4a the apparent hydrogen diffusion coefficient declines with increasing hydrostatic pressure.…”

Section: Hydrogen Concentration Determinationsmentioning

confidence: 99%

Hydrogen permeation in 2205 duplex stainless steel under hydrostatic pressure and simulation by COMSOL

Yao

Macdonald

et al. 2018

Materials & Corrosion

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This article explores the effect of hydrostatic pressure on hydrogen diffusion process in 2205 duplex stainless steel. The experiments were performed in a homemade high pressure autoclave. The Fick's second law was modified and taken reversible traps into account. The apparent diffusion coefficient decreased by 74.85% when pressure increased from 0.1 to 7 MPa, both of forward and reverse trapping rate constants, apparent hydrogen concentration, and activation energy increased with higher hydrostatic pressure. Additionally, finite element method based on diffusion model was performed using COMSOL Multiphysics software and the trapping constants effects were analyzed, which can be used in ocean industry.

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“…4). Similar to the approach adopted in (Rimoli and Ortiz, 2010), (Serebrinsky et al 2004), (Sofronis and McMeeking, 1989), (Scheider et al 2008), (Alvaro et al 2014a), (Olden et al 2014) and (Raykar et al 2011), hydrogen adsorption is treated by the application of appropriate boundary conditions. Fracture initiation due to the SCC hydrogen AIDEC mechanism is described by using the Fisher grain boundary diffusion model (Fisher, 1951).…”

Section: Current Approachmentioning

confidence: 99%

“…According to (Rimoli and Ortiz, 2010), it is widely reckoned that these interactions are not entirely understood at present, and, as argued in (Scheider et al, 2008), it is not currently possible to obtain a direct measure of hydrogen concentration in the region adjacent to the crack tip. As described in (Serebrinsky et al, 2004) and in (Sofronis and McMeeking, 1989), an alternative approach, adopted in different studies, such as (Scheider et al, 2008), (Raykar et al, 2011), (Alvaro et al, 2014a) and (Olden et al, 2014), consists in assuming that hydrogen adsorption can be represented via appropriate boundary conditions. For this purpose, the concept of hydrogen coverage is introduced and defined as:…”

Section: Hydrogen Coverage Boundary Conditionmentioning

confidence: 99%

Modelling of stress-corrosion cracking by using peridynamics

Meo

Diyaroglu

Zhu

et al. 2016

International Journal of Hydrogen Energy

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This version is available at https://strathprints.strath.ac.uk/55533/ Strathprints is designed to allow users to access the research output of the University of Strathclyde. Unless otherwise explicitly stated on the manuscript, Copyright © and Moral Rights for the papers on this site are retained by the individual authors and/or other copyright owners. Please check the manuscript for details of any other licences that may have been applied. You may not engage in further distribution of the material for any profitmaking activities or any commercial gain. You may freely distribute both the url (https://strathprints.strath.ac.uk/) and the content of this paper for research or private study, educational, or not-for-profit purposes without prior permission or charge.Any correspondence concerning this service should be sent to the ABSTRACTWe present for the first time a numerical multiphysics peridynamic framework for the modelling of adsorbedhydrogen stress-corrosion cracking (SCC), based on the adsorption-induced decohesion mechanism. The material is modelled at the microscopic scale using microstructural data. First-principle studies available in the literature are used for characterizing the process of intergranular material strength degradation. The model consists of a polycrystalline AISI 4340 high-strength low-alloy (HSLA) thin, pre-cracked steel plate subjected to a constant displacement controlled loading and exposed to an aqueous solution. Different values of stress intensity factor (SIF) are considered, and the resulting crack propagation speed and branching behaviour are found to be in good agreement with experimental results available in the literature.

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FE simulation of hydrogen diffusion in duplex stainless steel

Cited by 86 publications

References 13 publications

A cohesive zone framework for environmentally assisted fatigue

A cohesive zone framework for environmentally assisted fatigue

Hydrogen permeation in 2205 duplex stainless steel under hydrostatic pressure and simulation by COMSOL

Modelling of stress-corrosion cracking by using peridynamics

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