Microstructure of the “white layer” formed on nitrided Fe-7wt.% Cr alloys

Abstract

The formation of a compound, “white” layer on the surface of Fe-7wt.% Cr alloy, by exposure to a gas mixture of ammonia and hydrogen at 580°C, was investigated. The microstructure of the surface layer was analysed employing light and scanning electron microscopy, X-ray diffraction and electron probe microanalysis. For the first time a quantitative (phase) analysis of such a white layer was carried out, demonstrating the presence of a dispersed CrN phase within a γ ^| iron-nitride matrix.

Journal

Journal ID (publisher-id): ijmr

Title: Zeitschrift für Metallkunde

Publisher: Carl Hanser Verlag

ISSN (Print): 0044-3093

ISSN (Electronic): 2195-8556

Publication date (Print): 2006

Volume: 97

Issue: 11

Pages: 1545-1549

Affiliations

^a Max Planck Institute for Metals Research, Stuttgart, Germany

^b Institute for Physical Metallurgy, University of Stuttgart, Germany

Author notes

[* ] Correspondence address, Dr. S. S. Hosmani Max Planck Institute for Metals Research Heisenbergstr. 3, D-70569 Stuttgart, Germany Tel.: [phone] Fax: [phone] E-mail: s.hosmani@ 123456mf.mpg.de

Article

Publisher ID: MK101419

DOI: 10.3139/146.101419

Copyright statement: © 2006, Carl Hanser Verlag, München

Page count

References: 18, Pages: 5

Product

Self URI (journal page): https://www.hanser-elibrary.com/loi/ijmr

Categories

Subject: Applied