Influence of Nb Content on Structure and Functional Properties of Novel Multicomponent Nb–Ni–Ti–Zr–Co Alloy for Hydrogen Separation Membrane Application; Hydrogen; Vol. 5, iss. 4
| Parent link: | Hydrogen.— .— Basel: MDPI AG Vol. 5, iss. 4.— 2024.— P. 929-939 |
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| Other Authors: | , , , , , , , |
| Summary: | Title screen Novel multicomponent Nb–Ni–Ti–Zr–Co alloys with 20–55 at.% Nb were synthesized from metal powders by arc melting. The resulting alloys consist primarily of Nb-rich and eutectic body-centered (BCC) phases. The content of the eutectic BCC phase is highest for an equimolar composition, while the content of the Nb-rich BCC phase increases with Nb content in the alloy. The content of secondary phases is the highest for the alloy with 32 at.% Nb. According to ab initio calculations, hydrogen occupies tetrahedral interstitial sites in the Nb-rich phase and octahedral sites in the eutectic BCC phase. For different Nb concentrations, hydrogen-binding energies were calculated. An increase in the Nb-rich phase leads to softening of multicomponent alloys. The alloys with 20 and 32 at.% Nb demonstrate high hydrogen permeability (1.05 and 0.96 × 10−8 molH2m−1s−1Pa−0.5, respectively) at 400 °C, making them promising for hydrogen purification membrane application. Multicomponent alloys with a high Nb content (55 at.%) have low resistance to hydrogen embrittlement Текстовый файл |
| Language: | English |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://doi.org/10.3390/hydrogen5040049 |
| Format: | Electronic Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=681700 |
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| 200 | 1 | |a Influence of Nb Content on Structure and Functional Properties of Novel Multicomponent Nb–Ni–Ti–Zr–Co Alloy for Hydrogen Separation Membrane Application |f Egor B. Kashkarov, Leonid A. Svyatkin, Kirill S. Gusev [et al.] | |
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| 300 | |a Title screen | ||
| 320 | |a References: 46 tit | ||
| 330 | |a Novel multicomponent Nb–Ni–Ti–Zr–Co alloys with 20–55 at.% Nb were synthesized from metal powders by arc melting. The resulting alloys consist primarily of Nb-rich and eutectic body-centered (BCC) phases. The content of the eutectic BCC phase is highest for an equimolar composition, while the content of the Nb-rich BCC phase increases with Nb content in the alloy. The content of secondary phases is the highest for the alloy with 32 at.% Nb. According to ab initio calculations, hydrogen occupies tetrahedral interstitial sites in the Nb-rich phase and octahedral sites in the eutectic BCC phase. For different Nb concentrations, hydrogen-binding energies were calculated. An increase in the Nb-rich phase leads to softening of multicomponent alloys. The alloys with 20 and 32 at.% Nb demonstrate high hydrogen permeability (1.05 and 0.96 × 10−8 molH2m−1s−1Pa−0.5, respectively) at 400 °C, making them promising for hydrogen purification membrane application. Multicomponent alloys with a high Nb content (55 at.%) have low resistance to hydrogen embrittlement | ||
| 336 | |a Текстовый файл | ||
| 461 | 1 | |t Hydrogen |c Basel |n MDPI AG | |
| 463 | 1 | |t Vol. 5, iss. 4 |v P. 929-939 |d 2024 | |
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a alloys | |
| 610 | 1 | |a microstructure | |
| 610 | 1 | |a ab initio calculation | |
| 610 | 1 | |a crystal structure | |
| 610 | 1 | |a hydrogen permeability | |
| 701 | 1 | |a Kashkarov |b E. B. |c Physicist |c Associate Professor, Researcher of Tomsk Polytechnic University, Candidate of Physical and Mathematical Sciences |f 1991- |g Egor Borisovich |9 18267 | |
| 701 | 1 | |a Svyatkin |b L. A. |c physicist |c Associate Professor of Tomsk Polytechnic University, Candidate of Physical and Mathematical Sciences |f 1988- |g Leonid Aleksandrovich |9 17747 | |
| 701 | 1 | |a Gusev |b K. S. |c physicist |c Technician of Tomsk Polytechnic University |f 2001- |g Kirill Sergeevich |9 23019 | |
| 701 | 1 | |a Ognev |b S. O. |c Specialist in the field of nuclear technologies |c Engineer of Tomsk Polytechnic University |f 1999- |g Sergey Olegovich |9 22797 | |
| 701 | 1 | |a Koptsev |b M. |c physicist |c Engineer of Tomsk Polytechnic University |f 1994- |g Maksim |9 23020 | |
| 701 | 1 | |a Terentjeva |b D. V. |c physicist |c Engineer of Tomsk Polytechnic University |f 1999- |g Darjya Vitaljevna |9 88521 | |
| 701 | 1 | |a Murashkina |b T. L. |c Physicist |c Engineer of Tomsk Polytechnic University, Assistant |f 1990- |g Tatiana Leonidovna |9 20984 | |
| 701 | 1 | |a Lider |b A. M. |c Physicist |c Professor of Tomsk Polytechnic University, Doctor of Technical Sciences |f 1976-2025 |g Andrey Markovich |9 14743 | |
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