Results 1 to 10 of about 195,760 (256)

Different aspects of hydrogen diffusion behavior in pipeline steel

open access: yesJournal of Materials Research and Technology, 2023
In this paper, hydrogen diffusion behavior in pipeline steel is thoroughly investigated. The effect of various microstructural factors affecting hydrogen diffusion are discussed using literature review.
M.A. Mohtadi-Bonab, Mohammad Masoumi
doaj   +3 more sources

Research on residual stress and hydrogen diffusion of X80 pipeline welded joint

open access: yesFrontiers in Materials, 2023
Hydrogen enrichment induced by pipeline welding residual stress is a key issue affecting the safe service of hydrogen pipelines. In order to explore the influence of welding residual stress on hydrogen diffusion and the effect of heat treatment, an X80 ...
Jinghong Xue   +4 more
doaj   +1 more source

Tests under irradiation of optical fibers and cables devoted to corium monitoring in case of severe accident in a Nuclear Power Plant [PDF]

open access: yesEPJ Web of Conferences, 2020
The DISCOMS project, which stands for “DIstributed Sensing for COrium Monitoring and Safety”, considers the potential of distributed sensing technologies, based on remote instrumentations and Optical Fiber Sensing cables embedded into the concrete floor ...
Cheymol G.   +10 more
doaj   +1 more source

The influence of the trapping model choice on the adequate description of hydrogen diffusion into metals from external environment

open access: yesSt. Petersburg Polytechnical University Journal: Physics and Mathematics, 2022
The paper considers the hydrogen diffusion into metals from their external environment. In order to properly describe a time-stable boundary layer (experimentally observed) with a hydrogen concentration being tens of times higher than that inside the ...
Grigoreva Polina
doaj   +1 more source

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 Effect of Symmetrically Tilt Grain Boundary of Aluminum on Hydrogen Diffusion

open access: yesMetals, 2022
High-strength aluminum alloys are widely used in industry. Hydrogen embrittlement greatly reduces the performance and service safety of aluminum alloys. The hydrogen traps in alumi-num profoundly affect the hydrogen embrittlement of aluminum.
Yuhao Wang   +5 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

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