Journal ArticleDOI
FE simulation of hydrogen diffusion in duplex stainless steel
Reads0
Chats0
TLDR
ABAQUS FE simulations of hydrogen diffusion in duplex stainless steel have been performed in this paper, where three models with different ferrite-austenite configurations have been applied and the hydrogen diffusion and hydrogen coefficient have been evaluated as a function of austenite phase size and shape and the calculated diffusion coefficients compared to literature.About:
This article is published in International Journal of Hydrogen Energy.The article was published on 2014-01-13. It has received 70 citations till now. The article focuses on the topics: Hydrogen & Austenite.read more
Citations
More filters
Journal ArticleDOI
Perspectives on hydrogen uptake, diffusion and trapping.
TL;DR: In this paper, the authors discuss the issues in relation to hydrogen uptake and diffusion in steels and discuss the outstanding challenges in modelling hydrogen diffusion in terms of hydrogen assisted cracking and optimal charging conditions in hydrogen permeation measurements.
Journal ArticleDOI
A cohesive zone framework for environmentally assisted fatigue
TL;DR: In this paper, a compelling finite element framework to model hydrogen assisted fatigue by means of a hydrogen-and cycle-dependent cohesive zone formulation is presented, where the role of yield strength, work hardening, and constraint conditions in enhancing crack growth rates as a function of the loading frequency is thoroughly investigated.
Journal ArticleDOI
Modelling of stress-corrosion cracking by using peridynamics
TL;DR: In this paper, a numerical multiphysics peridynamic framework for the modeling of adsorbed-hydrogen stress-corrosion cracking (SCC) based on the adsorption-induced decohesion mechanism is presented.
Journal ArticleDOI
Dependence of hydrogen embrittlement mechanisms on microstructure-driven hydrogen distribution in medium Mn steels
TL;DR: In this article, the authors investigate two austenite-ferrite medium Mn steel samples with very different phase characteristics and observe that the two types of microstructures show very different response to HE, due to fundamental differences between the HE micromechanisms acting in them.
Journal ArticleDOI
Characterization on stress-strain behavior of ferrite and austenite in a 2205 duplex stainless steel based on nanoindentation and finite element method
TL;DR: In this article, the stress-strain behavior of ferrite and austenite in a commercial 2205 duplex stainless steel was investigated by using nanoindentation test and microstructure-based finite element method (FEM).
References
More filters
Journal ArticleDOI
Effects of hydrogen on the properties of iron and steel
TL;DR: In this paper, the effects of hydrogen on the physical and mechanical properties of iron and steel are reviewed and a new mechanism for the cold work peak for hydrogen in iron is considered.
Journal ArticleDOI
The diffusion and trapping of hydrogen in steel
TL;DR: In this paper, the mobility of dissolved hydrogen in an iron lattice having a population of extraordinary, or trapping, sites for hydrogen is analyzed under the assumption of local equilibrium between the mobile and the trapped populations.
Journal ArticleDOI
The adsorption and diffusion of electrolytic hydrogen in palladium
TL;DR: In this paper, a sensitive electrochemical technique, which permits the recording of the instantaneous rate of permeation of electrolytic hydrogen through palladium, is described, and results were obtained under conditions required by theory for the diffusion of hydrogen with the use of electronic potentiostats.
Journal ArticleDOI
Numerical analysis of hydrogen transport near a blunting crack tip
TL;DR: In this paper, Oriani's equilibrium theory is used to relate the hydrogen in traps (micro-structural defects) to concentration in normal interstitial lattice sites (NILS), and the resulting non-linear transient hydrogen diffusion equations are integrated using a modified backward Euler method.
Journal ArticleDOI
Deep trapping states for hydrogen in deformed iron
A.J. Kumnick,H.H. Johnson +1 more
TL;DR: In this paper, a trap binding energy of 14.3 ∓ 1.1 kcal (59.9 ± 4.6 kJ mol−1H) was determined.