Simulation of Hydrogen Isotopes Accumulation Processes in Materials in the Presence of Chemical Traps
The accumulation of hydrogen inside a solids occurs in traps of a different nature. The following things are known in addition to finding hydrogen in interstitial sites: dislocation mechanisms of hydrogen storage, micropores and microcracks, sorption on the free surface of microdefects, chemical tra...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
al-Farabi Kazakh National University
2019-02-01
|
| Series: | Eurasian Chemico-Technological Journal |
| Subjects: | |
| Online Access: | http://ect-journal.kz/index.php/ectj/article/view/783 |
| _version_ | 1818857617961779200 |
|---|---|
| author | T.V. Kulsartov Zh.A. Zaurbekova Ye.V. Chikhray M.T. Gabdullin |
| author_facet | T.V. Kulsartov Zh.A. Zaurbekova Ye.V. Chikhray M.T. Gabdullin |
| author_sort | T.V. Kulsartov |
| collection | DOAJ |
| description | The accumulation of hydrogen inside a solids occurs in traps of a different nature. The following things are known in addition to finding hydrogen in interstitial sites: dislocation mechanisms of hydrogen storage, micropores and microcracks, sorption on the free surface of microdefects, chemical traps with the formation of hydrides and other compounds, both with matrix material and with impurities or components of alloys. It is established that each type of trap has its own binding energy of hydrogen, which can vary from 0.2 eV for hydrogen gas in microdefects to several eV for hydrogen chemically bound in traps. Measurements of the distribution of hydrogen concentration dissolved in a solid body over binding energies provide a clue as to the understanding of hydrogen impact on mechanical properties and to the development of technologies for controlling the materials properties during their production and operation. The paper presents the results of simulation experiments on hydrogen saturation of materials in the presence of chemical traps. The proposed model, based on the numerical solution of the diffusion equation in the presence of irreversible capture, made it possible to describe the absorption process and determine the activation energies of hydrogen interaction with the material. |
| first_indexed | 2024-12-19T08:43:15Z |
| format | Article |
| id | doaj.art-cd52b1ad01f94e2f9ca7f27797e4559c |
| institution | Directory Open Access Journal |
| issn | 1562-3920 2522-4867 |
| language | English |
| last_indexed | 2024-12-19T08:43:15Z |
| publishDate | 2019-02-01 |
| publisher | al-Farabi Kazakh National University |
| record_format | Article |
| series | Eurasian Chemico-Technological Journal |
| spelling | doaj.art-cd52b1ad01f94e2f9ca7f27797e4559c2022-12-21T20:28:53Zengal-Farabi Kazakh National UniversityEurasian Chemico-Technological Journal1562-39202522-48672019-02-01211252810.18321/ectj783783Simulation of Hydrogen Isotopes Accumulation Processes in Materials in the Presence of Chemical TrapsT.V. Kulsartov0Zh.A. Zaurbekova1Ye.V. Chikhray2M.T. Gabdullin3Kazakh-British Technical University, 59, Tole bi str., Almaty, KazakhstanKazakh-British Technical University, 59, Tole bi str., Almaty, KazakhstanKazakh-British Technical University, 59, Tole bi str., Almaty, KazakhstanKazakh-British Technical University, 59, Tole bi str., Almaty, KazakhstanThe accumulation of hydrogen inside a solids occurs in traps of a different nature. The following things are known in addition to finding hydrogen in interstitial sites: dislocation mechanisms of hydrogen storage, micropores and microcracks, sorption on the free surface of microdefects, chemical traps with the formation of hydrides and other compounds, both with matrix material and with impurities or components of alloys. It is established that each type of trap has its own binding energy of hydrogen, which can vary from 0.2 eV for hydrogen gas in microdefects to several eV for hydrogen chemically bound in traps. Measurements of the distribution of hydrogen concentration dissolved in a solid body over binding energies provide a clue as to the understanding of hydrogen impact on mechanical properties and to the development of technologies for controlling the materials properties during their production and operation. The paper presents the results of simulation experiments on hydrogen saturation of materials in the presence of chemical traps. The proposed model, based on the numerical solution of the diffusion equation in the presence of irreversible capture, made it possible to describe the absorption process and determine the activation energies of hydrogen interaction with the material.http://ect-journal.kz/index.php/ectj/article/view/783hydrogenaccumulationchemical trapsdiffusionsimulation |
| spellingShingle | T.V. Kulsartov Zh.A. Zaurbekova Ye.V. Chikhray M.T. Gabdullin Simulation of Hydrogen Isotopes Accumulation Processes in Materials in the Presence of Chemical Traps Eurasian Chemico-Technological Journal hydrogen accumulation chemical traps diffusion simulation |
| title | Simulation of Hydrogen Isotopes Accumulation Processes in Materials in the Presence of Chemical Traps |
| title_full | Simulation of Hydrogen Isotopes Accumulation Processes in Materials in the Presence of Chemical Traps |
| title_fullStr | Simulation of Hydrogen Isotopes Accumulation Processes in Materials in the Presence of Chemical Traps |
| title_full_unstemmed | Simulation of Hydrogen Isotopes Accumulation Processes in Materials in the Presence of Chemical Traps |
| title_short | Simulation of Hydrogen Isotopes Accumulation Processes in Materials in the Presence of Chemical Traps |
| title_sort | simulation of hydrogen isotopes accumulation processes in materials in the presence of chemical traps |
| topic | hydrogen accumulation chemical traps diffusion simulation |
| url | http://ect-journal.kz/index.php/ectj/article/view/783 |
| work_keys_str_mv | AT tvkulsartov simulationofhydrogenisotopesaccumulationprocessesinmaterialsinthepresenceofchemicaltraps AT zhazaurbekova simulationofhydrogenisotopesaccumulationprocessesinmaterialsinthepresenceofchemicaltraps AT yevchikhray simulationofhydrogenisotopesaccumulationprocessesinmaterialsinthepresenceofchemicaltraps AT mtgabdullin simulationofhydrogenisotopesaccumulationprocessesinmaterialsinthepresenceofchemicaltraps |