Results 11 to 20 of about 386,126 (244)

The impact of hydrogen on the ductility loss of bainitic Fe–C alloys [PDF]

open access: yes, 2016
The influence of hydrogen on the mechanical properties of generic lab-cast Fe-C bainitic alloys is studied by tensile tests on notched samples. The bainitic microstructure is induced in a 0.2% C and 0.4% C Fe-C alloy by an appropriate heat treatment. The
Depover, Tom   +2 more
core   +1 more source

Effects of aluminum on hydrogen solubility and diffusion in deformed Fe-Mn alloys [PDF]

open access: yes, 2016
We discuss hydrogen diffusion and solubility in aluminum alloyed Fe-Mn alloys. The systems of interest are subjected to tetragonal and isotropic deformations. Based on ab initio modelling, we calculate solution energies, then employ Oriani's theory which
Dang, S.   +4 more
core   +4 more sources

Influence of the hydrogen skin effect on the nature of the fracture of steel specimens

open access: yesSt. Petersburg Polytechnical University Journal: Physics and Mathematics, 2022
The influence of hydrogen saturation of steel specimens on the results of their standardized testing for resistance to hydrogen cracking has been carried out.
Sedova Yuliya   +2 more
doaj   +1 more source

Ab-initio molecular dynamics simulation of hydrogen diffusion in $\alpha$-iron [PDF]

open access: yes, 2010
First-principles atomistic molecular dynamics simulation in the micro-canonical and canonical ensembles has been used to study the diffusion of interstitial hydrogen in $\alpha$-iron.
G. Alefeld   +7 more
core   +2 more sources

Hydrogen adsorption and diffusion around Si(001)/Si(110) corners in nanostructures [PDF]

open access: yes, 2014
While the diffusion of hydrogen on silicon surfaces has been relatively well characterised both experimentally and theoretically, the diffusion around corners between surfaces, as will be found on nanowires and nanostructures, has not been studied ...
Bowler, David R.   +2 more
core   +2 more sources

Tensile Armor Wires Submitted to Slow Strain Rate Tests in a Corrosive Environment and Cathodic Protection: a Comparison Between Two Different Microstructures [PDF]

open access: yesMaterials Research, 2019
Tensile armor in flexible pipes consists of two or more layers of steel wires. Damage to the outer sheath may cause ingress of seawater in the annular space and thus corrosion of the armor wires.
Mariana dos Reis Tagliari   +6 more
doaj   +1 more source

Water diffusion in rough carbon nanotubes [PDF]

open access: yes, 2020
We use molecular dynamics simulations to study the diffusion of water inside deformed carbon nanotubes with different degrees of deformation at 300 K. We found that the number of hydrogen bonds that water forms depends on nanotube topology, leading to ...
Barbosa, Marcia C.   +4 more
core   +2 more sources

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

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

Combined Kelvin probe force microscopy and secondary ion mass spectrometry for hydrogen detection in corroded 2024 aluminium alloy [PDF]

open access: yes, 2013
The capability of Kelvin probe force microscopy (KFM) to detect and locate hydrogen in corroded 2024 aluminium alloy was demonstrated. Hydrogen was introduced inside the 2024 alloy following a cyclic corrosion test consisting of cycles of immersion in 1 ...
Alexis, Joël   +5 more
core   +3 more sources

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