Experimental determination of parameters of multichannel hydrogen diffusion in solid probe

Polyanskiy, A. M.; Polyanskiy, Vladimir A.; Yakovlev, Yu. A.

doi:10.1016/j.ijhydene.2014.07.080

Cited by 32 publications

(12 citation statements)

References 16 publications

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“…Each peak in the curve is related to hydro gen traps of a certain kind and to a certain sample tem perature in the course of an analysis. Application of the procedure described in [11] makes it possible to approximate the extraction curve by using the multi channel diffusion model and determine the binding energy of hydrogen. The application of this proce dure is illustrated in the figure for sample D37.…”

Section: Determining the Content And Binding Energy Of Hydrogen In DImentioning

confidence: 99%

“…In experiments with dia mond films on silicon substrates, the content of hydro gen was hundreds of times higher and, therefore, the flux of hydrogen from the substrate can be neglected. We calibrated the AV 1 hydrogen analyzer against the standard molecular hydrogen flow into vacuum [11]. The instrument was prepared in conformity with the requirements of GOST (State Standard) 21132.1-98.…”

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confidence: 99%

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Determining the content and binding energy of hydrogen in diamond films

Polyanskiy¹,

Polyanskiy

Yakovlev

et al. 2015

Tech. Phys. Lett.

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Section: Determining the Content And Binding Energy Of Hydrogen In DImentioning

confidence: 99%

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confidence: 99%

Determining the content and binding energy of hydrogen in diamond films

Polyanskiy¹,

Polyanskiy

Yakovlev

et al. 2015

Tech. Phys. Lett.

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“…An industrial hydrogen analyser AV-1 (Electronic and Beam Technologies Ltd., St. Petersburg, Russia) was used with mass-spectrometric registration of the time dependence of hydrogen flux from samples heated in vacuum [21]. The analyser was calibrated on certified hydrogen-containing samples of an aluminium alloy with the error of the certified value of hydrogen concentration of 6%.…”

Section: Methodsmentioning

confidence: 99%

Effect of Hydrogen on the Elastic and Anelastic Properties of the R Phase in Ti50Ni46.1Fe3.9 Alloy

Sapozhnikov

Torrens‐Serra

Cesari

et al. 2017

Metals

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Abstract:The linear and non-linear internal friction, effective Young's modulus, and amplitude-dependent modulus defect of a Ti 50 Ni 46.1 Fe 3.9 alloy have been studied after different heat treatments, affecting hydrogen content, at temperatures of 13-300 K, and frequencies near 90 kHz. It has been shown that the contamination of the alloy by hydrogen gives rise to an internal friction maximum in the R martensitic phase and a complicated pinning stage in the temperature dependence of the effective Young's modulus at temperatures corresponding to the high-temperature side of the maximum. Dehydrogenation of the H-contaminated alloy transforms the internal friction maximum into a plateau and minimizes the pinning stage. The internal friction maximum is associated with a competition of two different temperature-dependent processes affecting the hydrogen concentration in the core regions of twin boundaries. The amplitude-dependent anelasticity of the R phase is also very sensitive to hydrogen content, its temperature dependence reflects the evolution of extended hydrogen atmospheres near twin boundaries.

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“…-1 ) от расстояния x (в мм) от геометрического центра образцов до линии излома: сплошная линия -образцы с поверхностным слоем; пунктирная -с удаленным слоем поверхности исходного образца толщиной 500 мкм Методики измерений описаны в [23,24]. Определение растворенного водорода про-водилось согласно стандарту [25].…”

Section: рис 1 образцы после механических испытанийunclassified

Boundary layer of hydrogen concentration under plastic deformation

Belyaev¹,

Mansyrev²,

Polyanskiy³

et al. 2017

DREAM

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A new model of instability of uniform plastic deformation with the formation of Lüders bands on the surface of a material being deformed is experimentally confirmed. It has been found that nonuniform plastic deformations correlate with hydrogen concentration during the testing of metal specimens in the atmosphere at room temperature. The presence of additional pores and microcracks formed as a result of plastic deformation is the cause of the correlation between plastic deformations and hydrogen concentrations in aluminum alloys. The effect of the boundary layer in the distribution of hydrogen concentrations has been detected. It reflects the fact that all changes associated with mechanical and thermo-mechanical loading are localized in a thin boundary layer at the surface of a metal specimen. The wave approach to the analysis of the continuum equations and the model of the boundary layer of a bicontinuous medium containing hydrogen are used to describe the observed phenomena. The constructed model makes it possible to describe the development of plastic deformation as a wave process in the boundary layer of a bicontinuous medium. Paris, 1923, vol. 176, pp. 507-510. 4. KeywordsPenning P. Mathematics of the Portevin-Le Chatelier effect. Acta Metallurgica, 1972, vol. 20, no. 10, pp. 1169-1175. DOI: 10.1016.Lebyodkin M., Brechetz Y., Estrin Y., Kubin L. Statistical behaviour and strain localization patterns in the Portevin-Le Chatelier effect. Acta Materialia, 1996, vol. 44, no. 11, pp. 4531-4541. DOI: 10.1016/135900076-6. 6.McCormiсk P.G. A model for the Portevin-Le Chatelier effect in substitutional alloys. Acta Metallurgica, 1972, vol. 20, no. 3, pp. 351-354. DOI: 10.1016 90028-4. 7.Kalk A., Nortmann A., Schwink C. Dynamic strain ageing and the boundaries of stable plastic deformation in Cu-Mn single crystals.

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Experimental determination of parameters of multichannel hydrogen diffusion in solid probe

Cited by 32 publications

References 16 publications

Determining the content and binding energy of hydrogen in diamond films

Determining the content and binding energy of hydrogen in diamond films

Effect of Hydrogen on the Elastic and Anelastic Properties of the R Phase in Ti50Ni46.1Fe3.9 Alloy

Boundary layer of hydrogen concentration under plastic deformation

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