Выдержка
The purpose of this work is to implement the positron lifetime and Doppler broadening techniques for the study of hydrogen-induced defects in Zr–1wt% Nb (hereinafter Zr–1Nb) alloy. It was shown that spark cutting is an appropriate instrument to obtain a pair of Zr-1Nb samples with the same hydrogen content for the “sandwich” geometry and does not introduce open-volume defects in them during the cut. The ab-initio calculations were implemented to evaluate the positron annihilation characteristics for expanded crystal lattice, Zr with absorbed hydrogen, Zr-vacancy and Zr-vacancy-hydrogen complexes. The type of defects created in Zr-1Nb alloy loaded with hydrogen from the gas phase up to various hydrogen concentrations was studied. The main types of defects induced by hydrogen loading are vacancy-hydrogen complexes and dislocations. The processes of crystal lattice expansion and hydrogen dissolution in the lattice were studied.
| Язык оригинала | Английский |
|---|---|
| Страницы (с-по) | 685-694 |
| Число страниц | 10 |
| Журнал | Journal of Alloys and Compounds |
| Том | 798 |
| DOI | |
| Состояние | Опубликовано - 25 авг 2019 |
Отпечаток
ASJC Scopus subject areas
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry
Цитировать
Positron annihilation spectroscopy study of defects in hydrogen loaded Zr-1Nb alloy. / Bordulev, Iurii; Kudiiarov, Viktor; Svyatkin, Leonid; Syrtanov, Maxim; Stepanova, Ekaterina; Čížek, Jakub; Vlček, Marian; Li, Ke; Laptev, Roman; Lider, Andrey.
В: Journal of Alloys and Compounds, Том 798, 25.08.2019, стр. 685-694.Результат исследований: Материалы для журнала › Статья
}
TY - JOUR
T1 - Positron annihilation spectroscopy study of defects in hydrogen loaded Zr-1Nb alloy
AU - Bordulev, Iurii
AU - Kudiiarov, Viktor
AU - Svyatkin, Leonid
AU - Syrtanov, Maxim
AU - Stepanova, Ekaterina
AU - Čížek, Jakub
AU - Vlček, Marian
AU - Li, Ke
AU - Laptev, Roman
AU - Lider, Andrey
PY - 2019/8/25
Y1 - 2019/8/25
N2 - The purpose of this work is to implement the positron lifetime and Doppler broadening techniques for the study of hydrogen-induced defects in Zr–1wt% Nb (hereinafter Zr–1Nb) alloy. It was shown that spark cutting is an appropriate instrument to obtain a pair of Zr-1Nb samples with the same hydrogen content for the “sandwich” geometry and does not introduce open-volume defects in them during the cut. The ab-initio calculations were implemented to evaluate the positron annihilation characteristics for expanded crystal lattice, Zr with absorbed hydrogen, Zr-vacancy and Zr-vacancy-hydrogen complexes. The type of defects created in Zr-1Nb alloy loaded with hydrogen from the gas phase up to various hydrogen concentrations was studied. The main types of defects induced by hydrogen loading are vacancy-hydrogen complexes and dislocations. The processes of crystal lattice expansion and hydrogen dissolution in the lattice were studied.
AB - The purpose of this work is to implement the positron lifetime and Doppler broadening techniques for the study of hydrogen-induced defects in Zr–1wt% Nb (hereinafter Zr–1Nb) alloy. It was shown that spark cutting is an appropriate instrument to obtain a pair of Zr-1Nb samples with the same hydrogen content for the “sandwich” geometry and does not introduce open-volume defects in them during the cut. The ab-initio calculations were implemented to evaluate the positron annihilation characteristics for expanded crystal lattice, Zr with absorbed hydrogen, Zr-vacancy and Zr-vacancy-hydrogen complexes. The type of defects created in Zr-1Nb alloy loaded with hydrogen from the gas phase up to various hydrogen concentrations was studied. The main types of defects induced by hydrogen loading are vacancy-hydrogen complexes and dislocations. The processes of crystal lattice expansion and hydrogen dissolution in the lattice were studied.
KW - Hydrogen loading
KW - Hydrogen-induced defects
KW - Positron annihilation
KW - Positron spectroscopy
KW - Zirconium
UR - http://www.scopus.com/inward/record.url?scp=85066415423&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85066415423&partnerID=8YFLogxK
U2 - 10.1016/j.jallcom.2019.05.186
DO - 10.1016/j.jallcom.2019.05.186
M3 - Article
AN - SCOPUS:85066415423
VL - 798
SP - 685
EP - 694
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
SN - 0925-8388
ER -