Back to Search
Start Over
Helium-Implantation-Induced Damage in NHS Steel Investigated by Slow-Positron Annihilation Spectroscopy.
- Source :
- Chinese Physics Letters; Mar2014, Vol. 31 Issue 3, p036101-036104, 4p
- Publication Year :
- 2014
-
Abstract
- Evolutions of defects and helium contained defects produced by atomic displacement and helium deposition with helium implantation at different temperatures in novel high silicon (NHS) steel are investigated by a slow positron beam. Differences of the defect information among samples implanted by helium to a fluence of 1 × 10<superscript>17</superscript> ions/cm<superscript>2</superscript> at room temperature, 300°C, 450°C and 750°C are discussed. It is found that the mobility of vacancies and vacancy clusters, a recombination of vacancy-type defects and the formation of the He-V complex lead to the occurrence of these differences. At high temperature irradiations, a change of the diffusion mechanism of He atoms/He bubbles might be one of the reasons for the change of the S-parameter. [ABSTRACT FROM AUTHOR]
- Subjects :
- HELIUM
POSITRON beams
THERMAL conductivity
STEEL research
PHYSICS research
Subjects
Details
- Language :
- English
- ISSN :
- 0256307X
- Volume :
- 31
- Issue :
- 3
- Database :
- Complementary Index
- Journal :
- Chinese Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 94916566
- Full Text :
- https://doi.org/10.1088/0256-307X/31/3/036101