Results 11 to 20 of about 195,327 (256)

Effect of Residual Stress on Hydrogen Diffusion in Thick Butt-Welded High-Strength Steel Plates

open access: yesMetals, 2022
Thick high-strength steel plates are increasingly being used for ship structures. Moreover, hydrogen enters the process of manufacturing and service, and large residual tensile stress occurs near the weld.
Jinhui Jiang, Wenshuo Zeng, Liangbi Li
doaj   +1 more source

In Situ Neutron Radiography Investigations of Hydrogen Related Processes in Zirconium Alloys

open access: yesApplied Sciences, 2021
In situ neutron radiography experiments can provide information about diffusive processes and the kinetics of chemical reactions. The paper discusses requirements for such investigations.
Mirco Grosse   +2 more
doaj   +1 more source

Numerical Simulation of Hydrogen Leakage and Diffusion Process of Fuel Cell Vehicle

open access: yesWorld Electric Vehicle Journal, 2021
Regarding the problem of hydrogen diffusion of the fuel cell vehicle (HFCV) when its hydrogen supply system leaks, this research uses the FLUENT software to simulate numerical values in the process of hydrogen leakage diffusion in both open space and ...
Mingyu Jiao   +3 more
doaj   +1 more source

The diffusion and thermal diffusion of hydrogen-deuterium, with a note on the thermal diffusion of hydrogen-helium [PDF]

open access: yesProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1941
Abstract The diffusion coefficient D12 has been determined for hydrogen-deuterium and is found to be in close agreement with the value predicted by the classical theory. The case is one of particular interest because the diffusing molecules have the same size and the same molecular field.
H. R. Heath, T. L. Ibbs, N. E. Wild
openaire   +1 more source

Influence of microstructure and crystallographic texture on hydrogen diffusion in IF-steel [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy, 2023
The relation between microstructure, crystallographic texture, and hydrogen diffusion was studied on a IF-steel. The steel samples were deep drawn to a strain level of 10%, 20%, 30% and 40% and then the hydrogen diffusion coefficients were determined ...
Başkaya Ü.   +4 more
doaj   +1 more source

Numerical Analysis of the Hydrogen Dispersion Behavior in Different Directions in a Naturally Ventilated Space

open access: yesApplied Sciences, 2021
Studies on hydrogen leakage have mainly focused on the influences of location and geometrical configuration on the distribution of the hydrogen in various spaces.
Xiaolu Zhang   +6 more
doaj   +1 more source

Microstructure Anisotropy Effect on Stress and Hydrogen Distribution in Micro Area for Martensitic Stainless Steel

open access: yesCailiao gongcheng, 2016
Elastic stiffness distribution of martensite microstructure was analyzed by using Electron Back Scatter Diffraction(EBSD) experiment, based on which the coupled finite element model of stress-hydrogen interaction was established to study the influence of
ZHONG Zhen-qian   +2 more
doaj   +1 more source

Hydrogen Diffusion and Its Effect on Hydrogen Embrittlement in DP Steels With Different Martensite Content

open access: yesFrontiers in Materials, 2020
The hydrogen diffusion behavior and hydrogen embrittlement susceptibility of dual phase (DP) steels with different martensite content were investigated using the slow strain-rate tensile test and hydrogen permeation measurement.
Zhen Wang   +9 more
doaj   +1 more source

First-principles study of hydrogen adsorption behavior in C15 Laves phase compound ZrV2

open access: yesAIP Advances, 2021
The hydrogen absorption behavior of C15 Laves phase compounds ZrV2 has been systematically investigated by the first-principles calculations. In the C15 Laves phase, hydrogen atoms can occupy three possible tetrahedral interstitial positions—2A2B, 1A3B ...
Yi Song   +9 more
doaj   +1 more source

Compensation of the Meyer‐Neldel Compensation Law for H diffusion in minerals

open access: yesGeochemistry, Geophysics, Geosystems, 2014
The Meyer‐Neldel Rule (MNR), or compensation law, linearly relates the preexponent term to the logarithm of the excitation enthalpy for any process that is thermally driven in an Arrhenian manner, and MNR fits can be used to calibrate and validate ...
Alan G. Jones
doaj   +1 more source

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