Published in
Elsevier, Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, (271), p. 27-32
DOI: 10.1016/j.nimb.2011.10.005
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Ion beam analysis of as-received, H-implanted and post implanted annealed fusion steels
,
M. Gonzalez,
M. González,
P. Romero,
R. Heller,
Fabrice Leardini,
J. M. Perlado
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Abstract
The elemental distribution for as-received (AR), H implanted (AI) and post-implanted annealed (A) Eurofer and ODS-Eurofer steels has been characterized by means of micro Particle Induced X-ray Emission (mu-PIXE), micro Elastic Recoil Detection (mu-ERD) and Secondary Ion Mass Spectrometry (SIMS). The temperature and time-induced H diffusion has been analyzed by Resonance Nuclear Reaction Analysis (RNRA), Thermal Desorption Spectroscopy (TDS), ERDA and SIMS techniques. mu-PIXE measurements point out the presence of inhomogeneities in the Y distribution for ODS-Eurofer samples. RNRA and SIMS experiments evidence that hydrogen easily outdiffuses in these steels even at room temperature. ERD data show that annealing at temperatures as low as 300 degrees C strongly accelerates the hydrogen diffusion process, driving out up to the 90% of the initial hydrogen. (C) 2011 Elsevier B.V. All rights reserved.