Sorry, you need to enable JavaScript to visit this website.

Influence of the surface conditions on permeation in the deuterium-MANET system

TitoloInfluence of the surface conditions on permeation in the deuterium-MANET system
Tipo di pubblicazioneArticolo su Rivista peer-reviewed
Anno di Pubblicazione1997
AutoriSerra, Emanuele, and Perujo A.
RivistaJournal of Nuclear Materials
Volume240
Paginazione215-220
ISSN00223115
Parole chiaveAdsorption, deuterium, Diffusion in solids, Gas phase permeation technique, Martensite, Martensitic steel DIN 1.4914 (MANET), oxidation, Pressure effects, Steel, Steel heat treatment, Surface phenomena, Surface treatment, Thermal effects, Transport properties, X ray photoelectron spectroscopy
Abstract

The condition of the surfaces is of crucial importance for the deuterium permeation through materials. In this work a study of the surface constants for the adsorption (σk1) and release (σk2) of deuterium under different surface conditions on the martensitic steel DIN 1.4914 (MANET) has been carried out. The growth of an oxide surface layer (Cr2O3) of about 25-30 nm in a MANET sample, heat treated in an oxidizing environment, compared to the bare MANET that have a 'natural' oxide of about 5 nm has provoked a reduction of both the permeation rate and the recombination coefficient (about 3 orders of magnitude). In addition, the permeation governing process has changed from diffusion-limited to surface-limited. The measurements of the permeation rate of deuterium were performed by a gas-phase permeation technique over the temperature range 574-746 K and for deuterium driving pressures in the range from 3 to 105 Pa.

Note

cited By 36

URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-0031078860&doi=10.1016%2fS0022-3115%2896%2900679-4&partnerID=40&md5=42aaa9d4f02da92d4bd35b78d4d9b09a
DOI10.1016/S0022-3115(96)00679-4
Citation KeySerra1997215