Published October 2013 | Version v1
Journal article

Isotope exchange investigation of nitrogen redistribution in expanded austenite

  • 1. Technical University of Denmark, Department of Mechanical Engineering, Produktionstorvet b.425, DK-2800 Kgs. Lyngby (Denmark)
  • 2. Institut Prime, UP33346 CNRS, Université de Poitiers, ISAE-ENSMA, Bd M and P Curie, BP 30179, 86962 Futurocope-Chasseneuil (France)
  • 3. Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf (HZDR), P.O. Box 510119, 01314 Dresden (Germany)

Description

Sequential plasma and gaseous nitriding of Fe–18Cr–10Ni–3Mo stainless steel at 390 °C with 14N and 15N isotopes followed by denitriding in flowing hydrogen was investigated. Redistribution of plasma-inserted nitrogen atoms (15N) by subsequent gaseous nitriding (14N) was observed. Denitriding after plasma- and gaseous nitriding resulted in predominant retraction of 14N, and only a minor amount of 15N. The nitrogen isotope diffusion behaviour is explained by two different states of nitrogen bonding and short-range ordering between nitrogen and chromium

Availability note (English)

Available from http://dx.doi.org/10.1016/j.scriptamat.2013.07.001

Additional details

Identifiers

DOI
10.1016/j.scriptamat.2013.07.001;
PII
S1359-6462(13)00348-5;

Publishing Information

Journal Title
Scripta Materialia
Journal Volume
69
Journal Issue
8
Journal Page Range
p. 582-585
ISSN
1359-6462
CODEN
SCMAF7

Optional Information

Copyright
Copyright (c) 2013 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.