Abstract
Nano-indentation measurements were carried out on nitrided Fe-Cr alloys (1 and 3 wt% Cr) in order to determine local micro-mechanical properties. The method recently developed on nitrided 32CrMoV13 steel was applied to the Fe-Cr alloys. Evolution of micro-yield stress through the nitrided layer was correlated to microstructural parameters (volume fraction of CrN precipitates, diameter of precipitates, etc.) investigated and statistically analyzed by transmission electron microscopy (TEM). The results show that the mechanical behavior of the nitrided layer for both alloys studied can be described using the Orowan model of precipitation strengthening.
Similar content being viewed by others
References
J. Grosch and J. Morral, in Proceedings of 2nd International Conference on Carburizing and Nitriding with Atmospheres, Cleveland, December 6–8, edited by M. Schneider (ASM International, 1995).
J. A. Knapp, D. M. Follstaedt, F. Vergne and A. Vincent, Mater. Sci. Eng. A 215 (1996) 1460.
H. Elghazal, G. Lormand, A. Hamel, D. Girodin and A. Vincent, ibid. 303 (2001) 110.
C. Jacq, G. Lormand, D. NÉlias, D. Girodin and A. Vincent, ibid. 342 (2003) 311.
P. LamagnÈre, R. FougÈres, A. Vincent, G. Lormand, D. Girodin, G. Dudragne and F. Vergne, J. Tribol. 120 (1998) 421.
M. A. J. Somers, R. M. Lankreijer and E. J. Mittemeijer, Phil. Mag. A. 59 (1989) 353.
M. Sennour, P. H. Jouneau and C. Esnouf, submitted for publication in J. of Materials.
J. N. Locquet, R. L. Soto, L. Barralier and A. Charai, Microsc. Microanal. Microstruct. 8 (1997) 335.
M. Sennour, PhD thesis, Lyon INSA, 2002.
V. Yu, B. A. Milman, S. I. Galanov and Chugunova, Acta. Metall. Mater. 41 (1993) 2523.
P. Guyot, Phil. Mag. 24 (1971) 989.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Sennour, M., Jacq, C. & Esnouf, C. Mechanical and microstructural investigations of nitrided Fe-Cr layers. Journal of Materials Science 39, 4533–4541 (2004). https://doi.org/10.1023/B:JMSC.0000034147.58126.f8
Issue Date:
DOI: https://doi.org/10.1023/B:JMSC.0000034147.58126.f8