Kršjak, Vladimír; Slugeň, Vladimír; Petriska, Martin; Sojak, Stanislav; Egger, Werner
Document type:
Zeitschriftenartikel / Journal Article
Title:
Microstructural study of He-implanted Fe-Cr alloys with the use of conventional lifetime technique and pulsed low energy positron beam
Journal:
Physica Status Solidi (C) Current Topics in Solid State Physics
Volume:
6
Issue:
11
Conference title:
International Conference on Positron Annihilation (15., 2009, Kolkata)
Conference title:
15th International Conference on Positron Annihilation (ICPA-15)
Venue:
Kolkata
Year of conference:
2009
Year:
2009
Pages from - to:
2339-2341
Language:
Englisch
Abstract:
Experimental simulation of the radiation damage using He+ implantation has been performed in research of Fe-Cr model alloys. Different chromium content in the studied materials enables investigations of the effect of this element on the microstructure of radiation treated materials. The damaged region was investigated with the positron lifetime techniques with focus on the size and distribution of the defects. Our measurements show that not only pulsed low energy positron beam spectroscopy (PLEPS) but also conventional lifetime spectroscopy can study the behaviour of vacancy type defects induced by implantation of charged particles. Our results show that initial microstructure of low Cr alloys with significant presence of vacancy type defects is less resistant to creation of defect agglomeration in comparison with higher Cr alloys. «
Experimental simulation of the radiation damage using He+ implantation has been performed in research of Fe-Cr model alloys. Different chromium content in the studied materials enables investigations of the effect of this element on the microstructure of radiation treated materials. The damaged region was investigated with the positron lifetime techniques with focus on the size and distribution of the defects. Our measurements show that not only pulsed low energy positron beam spectroscopy (PLEP... »