Abstract
Hydrogen accumulation during electrolytic saturation of 12Kh18N10T and 12Kh12M1BFR steels, as well as during thermally and radiation-stimulated hydrogen release from the same materials, was studied. It was shown that there is a critical hydrogen concentration in the sample, which is reached in 50 h for this saturation method (1 M H2SO4 electrolyte, current density is 0.5 A/cm2). Initially, hydrogen is trapped at low-temperature (400-500°C) traps of several types in surface layers. At saturation times of 50 h and longer, hydrogen penetrates to high-temperature (800-900°C) traps in the sample bulk. Under electron irradiation of saturated samples, the hydrogen yield nonlinearly increases with electron current density and energy above 40 keV. It was concluded that electronic processes (Auger process and plasmon excitation) play a dominant role in hydrogen diffusion and desorption activation.
| Original language | English |
|---|---|
| Pages (from-to) | 236-240 |
| Number of pages | 5 |
| Journal | Journal of Surface Investigation |
| Volume | 4 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 1 Apr 2010 |
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ASJC Scopus subject areas
- Surfaces, Coatings and Films
Cite this
Dynamics of hydrogen accumulation and radiation-stimulated release from steels. / Nikitenkov, N. N.; Khashkhash, A. M.; Tyurin, Yu I.; Chernov, I. P.; Lider, A. M.
In: Journal of Surface Investigation, Vol. 4, No. 2, 01.04.2010, p. 236-240.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Dynamics of hydrogen accumulation and radiation-stimulated release from steels
AU - Nikitenkov, N. N.
AU - Khashkhash, A. M.
AU - Tyurin, Yu I.
AU - Chernov, I. P.
AU - Lider, A. M.
PY - 2010/4/1
Y1 - 2010/4/1
N2 - Hydrogen accumulation during electrolytic saturation of 12Kh18N10T and 12Kh12M1BFR steels, as well as during thermally and radiation-stimulated hydrogen release from the same materials, was studied. It was shown that there is a critical hydrogen concentration in the sample, which is reached in 50 h for this saturation method (1 M H2SO4 electrolyte, current density is 0.5 A/cm2). Initially, hydrogen is trapped at low-temperature (400-500°C) traps of several types in surface layers. At saturation times of 50 h and longer, hydrogen penetrates to high-temperature (800-900°C) traps in the sample bulk. Under electron irradiation of saturated samples, the hydrogen yield nonlinearly increases with electron current density and energy above 40 keV. It was concluded that electronic processes (Auger process and plasmon excitation) play a dominant role in hydrogen diffusion and desorption activation.
AB - Hydrogen accumulation during electrolytic saturation of 12Kh18N10T and 12Kh12M1BFR steels, as well as during thermally and radiation-stimulated hydrogen release from the same materials, was studied. It was shown that there is a critical hydrogen concentration in the sample, which is reached in 50 h for this saturation method (1 M H2SO4 electrolyte, current density is 0.5 A/cm2). Initially, hydrogen is trapped at low-temperature (400-500°C) traps of several types in surface layers. At saturation times of 50 h and longer, hydrogen penetrates to high-temperature (800-900°C) traps in the sample bulk. Under electron irradiation of saturated samples, the hydrogen yield nonlinearly increases with electron current density and energy above 40 keV. It was concluded that electronic processes (Auger process and plasmon excitation) play a dominant role in hydrogen diffusion and desorption activation.
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UR - http://www.scopus.com/inward/citedby.url?scp=77951909118&partnerID=8YFLogxK
U2 - 10.1134/S1027451010020102
DO - 10.1134/S1027451010020102
M3 - Article
VL - 4
SP - 236
EP - 240
JO - Journal of Surface Investigation
JF - Journal of Surface Investigation
SN - 1027-4510
IS - 2
ER -