Hydrogen solubility in V85Ni15 alloy

Voyt, A.P.; Sidorov, N. I.; Sipatov, I. S.; Dobrotvorskii, M.A.; Piven, V. A.; Gabis, I. E.

doi:10.1016/j.ijhydene.2016.10.033

Cited by 17 publications

(6 citation statements)

References 25 publications

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“…The proposed model is adapted to the experimental conditions and the data range for alloys based on V group metals with high hydrogen permeability, in particular, data for vanadium alloys which are presented in [2][3][4]. We fix T = 673 K, = 0.05 cm, µ(T ) = 2.474…”

Section: Numerical Modelling Of the Penetration Experimentsmentioning

confidence: 99%

Estimation of hydrogen permeability parameters by the results of a ‘cascade’ penetration experiment

Zaika

Rodchenkova

2018

J. Phys.: Conf. Ser.

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Abstract. High-purity hydrogen is required for clean energy and a variety of chemical technology processes. Different alloys, which may be well-suited for use in gas-separation plants, were investigated by measuring specific hydrogen permeability. One had to estimate the parameters of diffusion and sorption to numerically model the different scenarios and experimental conditions of the material usage (including extreme ones), and identify the limiting factors. This paper presents a nonlinear model of fast hydrogen permeability in accordance with the specifics of the experiment and the parametric identification algorithm. IntroductionStudies on the interaction of hydrogen isotopes with structural materials are mainly necessitated by problems in the energy industry (including hydrogen one) [1] and metal protection from hydrogen corrosion. Different alloys, which may be well-suited for use in gas-separation plants, were investigated by measuring specific hydrogen permeability. One had to estimate the parameters of diffusion and sorption to numerically model the different scenarios and experimental conditions of the material usage (including extreme ones), and identify the limiting factors. The limiting factors are diffusion processes as well as physical and chemical phenomena at the surface. The transfer parameters depend on the technological features of material batch production. It is therefore unreasonable to target at 'tabular data'. Instead, effective algorithms of solving the inverse problem of parametric identification are necessary. The model matches the method of hydrogen permeability and takes into account only the main factors for the membrane filtering problem. This research is based on the article [2] and on the experimental data [3].

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Section: Numerical Modelling Of the Penetration Experimentsmentioning

confidence: 99%

Estimation of hydrogen permeability parameters by the results of a ‘cascade’ penetration experiment

Zaika

Rodchenkova

2018

J. Phys.: Conf. Ser.

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“…The proposed model is adapted to the experimental conditions and the data range for alloys based on V group metals with high hydrogen permeability, in particular, data for vanadium alloys which are presented in [11][12][13][29][30][31][32][33]. We fix = 673 K, ℓ = 0.05 cm, ( ) = 2.474 × 10…”

Section: Numerical Modelling Of the Penetration Experimentmentioning

confidence: 99%

“…We shall focus on the methods of permeability and thermal desorption taking into account only the main limiting factors for the applied membrane filtering problem and the informative capabilities of the considered experimental methods. The mathematical research is based on the articles [11][12][13], which provide descriptions of the experimental techniques and experimental material on promising alloys for hydrogen separation and purification.…”

Section: Introductionmentioning

confidence: 99%

The Inverse Problem of Identification of Hydrogen Permeability Model

Zaika

Rodchenkova

Kostikova

2018

Advances in Mathematical Physics

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One of the technological challenges for hydrogen materials science is the currently active search for structural materials with important applications (including the ITER project and gas-separation plants). One had to estimate the parameters of diffusion and sorption to numerically model the different scenarios and experimental conditions of the material usage (including extreme ones). The article presents boundary value problems of hydrogen permeability and thermal desorption with dynamical boundary conditions. A numerical method is developed for TDS spectrum simulation, where only integration of a nonlinear system of low order ordinary differential equations is required. The main final output of the article is a noise-resistant algorithm for solving the inverse problem of parametric identification for the aggregated experiment where desorption and diffusion are dynamically interrelated (without the artificial division of studies into the diffusion limited regime (DLR) and the surface limited regime (SLR)).

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“…Among those metals, V exhibits excellent hydrogen permeability and malleability but suffers from severe hydrogen embrittlement (HE) induced by excessive hydrogen absorption [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27]. For preventing HE by reducing the hydrogen content, a ductile-to-brittle transition hydrogen concentration was proposed as a criterion defining the changes from ductile fracture to brittle fracture behavior [35].…”

Section: Introductionmentioning

confidence: 99%

“…The solid solution in bcc phase using W, Ni, Al and Co at the same time can prevent the formation of the second phase e.g. B2-TiNi phase, which allows maintaining high hydrogen permeability while improving HE resistance [12,17,[21][22][23][24][25][26][27]. However, reduced hydrogen diffusivity has been often found in combination with alloying, which comes from the lattice distortion after alloying [26].…”

Section: Introductionmentioning

confidence: 99%

Hydrogen transport through the V-Cr-Al alloys: Hydrogen solution, permeation and thermal-stability

Huang

Shan

et al. 2020

Separation and Purification Technology

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Hydrogen solubility in V85Ni15 alloy

Cited by 17 publications

References 25 publications

Estimation of hydrogen permeability parameters by the results of a ‘cascade’ penetration experiment

Estimation of hydrogen permeability parameters by the results of a ‘cascade’ penetration experiment

The Inverse Problem of Identification of Hydrogen Permeability Model

Hydrogen transport through the V-Cr-Al alloys: Hydrogen solution, permeation and thermal-stability

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