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Ion beam analysis of as-received, H-implanted and post implanted annealed fusion steels

2011; Elsevier BV; Volume: 271; Linguagem: Inglês

10.1016/j.nimb.2011.10.005

1872-9584

R. González-Arrabal, Frans Munnik, M. González, Pablo Romero, René Heller, Fabrice Leardini, J.M. Perlado,

Nuclear Materials and Properties

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 (μ-PIXE), micro Elastic Recoil Detection (μ-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. μ-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 °C strongly accelerates the hydrogen diffusion process, driving out up to the 90% of the initial hydrogen.