AN AP FIM AND TEM STUDY OF THE MICROSTRUCTURAL EVOLUTION OF MANET STEEL AFTER DUAL-BEAM IRRADIATION

Authors
WANDERKA N WAHI RP
Citation
N. Wanderka et Rp. Wahi, AN AP FIM AND TEM STUDY OF THE MICROSTRUCTURAL EVOLUTION OF MANET STEEL AFTER DUAL-BEAM IRRADIATION, Applied surface science, 76(1-4), 1994, pp. 272-277
Citations number
8
Categorie Soggetti
Physics, Condensed Matter","Chemistry Physical","Materials Science, Coatings & Films
Journal title
Applied surface science → ACNP
ISSN journal
01694332
Volume
76
Issue
1-4
Year of publication
1994
Pages
272 - 277
Database
ISI
SICI code
0169-4332(1994)76:1-4<272:AAFATS>2.0.ZU;2-Z
Abstract
A special ferritic steel was investigated before and after simultaneou s 300 keV Fe+ irradiation and 15 keV He+ implantation at a temperature of 773 K. The fluence was up to 50 dpa at a constant helium concentra tion of 24 appm/dpa. The present paper reports the characterisation of the microstructure of MANET steel obtained with the help of atom-prob e/field-ion microscopy (AP/FIM) and transmission electron microscopy ( TEM). Quantitative analyses of the M23C6 carbides before and after sim ultaneous irradiation/implantation were carried out. This phase remain s stable even after irradiation/implantation. Cr-, and N/Si- rich regi ons were detected and analysed by means of atom probe. TEM investigati ons showed cavities in the MANET steel after irradiation/implantation.