Modelling the influence of trapping on hydrogen permeation in metals

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F13%3A00421198" target="_blank" >RIV/68081723:_____/13:00421198 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.corsci.2013.07.010" target="_blank" >http://dx.doi.org/10.1016/j.corsci.2013.07.010</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.corsci.2013.07.010" target="_blank" >10.1016/j.corsci.2013.07.010</a>

Result language
angličtina
Original language name
Modelling the influence of trapping on hydrogen permeation in metals
Original language description
Hydrogen permeation (diffusion) is strongly influenced by the local hydrogen concentration and by the density and depth of traps. Consequently hydrogen diffusion cannot be described by a constant effective diffusivity as suggested in standards and several papers. A modelling study for diffusion of hydrogen in metals with traps is presented. Simulations are performed for a charging and discharging process, showing a remarkable asymmetry. The actual chemical diffusivity ranges over several orders of magnitude depending on the hydrogen concentration as well as the density and depth of traps. Consequently, the concept of effective diffusivity outlined in standards and many publications fails.
Czech name
—
Czech description
—

Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BJ - Thermodynamics
OECD FORD branch
—

Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)