3-D finite element analysis of the effect of welding residual stress on hydrogen diffusion in hydrogen contained environment. Acta Metall Sin Engl Lett 2007;20(5):347-54.Jiang W C, Gong J M, et al. 3-D finite element analysis of the effect of welding residual stress on hydrogen ...
We denote the thickness of the thin film as L, the diffusion coefficient of the hydrogen atom in the Pd-based metal nanofilm as D, and the hydrogen atom concen- tration as C(x, t), which is a function of the time t and the position x in the Pd-based metal nanofilm. When the ...
affects the diffusion coefficient of hydrogen, and high pressure increases the material’s sensitivity to hydrogen embrittlement. Higher applied stresses and lower strain rates can also enhance the sensitivity of steel to hydrogen embrittlement. Extensive studies have investigated the impacts of material st...
This work evaluates the accessibility of the thermal diffusivity a and the Fick diffusion coefficient D11 in gaseous binary mixtures of H2 and CH4 by dynamic light scattering (DLS). The investigations are performed at temperatures T and pressures p of (293, 333, 363, and 393) K and (5, ...
Determination of the Hydrogen Diffusion Coefficient in Transformer Oil. Tech. Phys. 2011, 56, 421–422. [Google Scholar] [CrossRef] Islam, M.M.; Lee, G.; Hettiwatte, S.N. A Review of Condition Monitoring Techniques and Diagnostic Tests for Lifetime Estimation of Power Transformers. Electr...
The proton insertion/extraction kinetics was assessed using the equation: i = aνb, where i is the current response, a is an adjustment coefficient, ν is the sweep rate and the power exponent b is a parameter to analyze the kinetics50,51. A b value of 0.5 means diffusion-...
Carbon is a preferred p-type dopant in GaAs because it has a high solubility limit and a low diffusion coefficient. Hydrogen can passivate carbon acceptors during crystal growth, annealing in a hydrogen ambient (Kozuch et al., 1993), or during exposure to hydrogen plasma (Rahbi et al., ...
Additionally, the higher diffusion coefficient of Mn hinders Cr dissolution. However, Cr was found to be associated with bcc precipitates related to internal corrosion in the HEA. As the depth increased, an increase in precipitate population and a change in their morphology (from spherical to needl...
as a diffusion coefficient DH, SiNof hydrogen in SiN may be significantly lower than a diffusion coefficient DH,SiOof hydrogen in silicon oxide. Thus the SO bilayer, and in particular the SiN sublayer, may be an effective dielectric barrier layer to hydrogen out-diffusion from the dielectric ...
affects the diffusion coefficient of hydrogen, and high pressure increases the material’s sensitivity to hydrogen embrittlement. Higher applied stresses and lower strain rates can also enhance the sensitivity of steel to hydrogen embrittlement. Extensive studies have investigated the impacts of material ...