Hostname: page-component-586b7cd67f-t7fkt Total loading time: 0 Render date: 2024-11-25T15:25:45.937Z Has data issue: false hasContentIssue false
  • English
  • Français

Evolution of Nanostructure of FeNi(Ti/Cr)N Alloys During Phase Cycling

Published online by Cambridge University Press:  21 March 2011

N. G. Chechenin ,
P. M. Bronsveld ,
A. R. Chezan ,
C. B. Craus ,
D. O. Boerma ,
J. Th.M. de Hosson  and
L. Niesen
N. G. Chechenin
Affiliation:
Materials Science Center, University of Groningen, Nijenborgh 4, NL 9747 AG Groningen, The Netherlands
P. M. Bronsveld
Affiliation:
Materials Science Center, University of Groningen, Nijenborgh 4, NL 9747 AG Groningen, The Netherlands
A. R. Chezan
Affiliation:
Materials Science Center, University of Groningen, Nijenborgh 4, NL 9747 AG Groningen, The Netherlands
C. B. Craus
Affiliation:
Materials Science Center, University of Groningen, Nijenborgh 4, NL 9747 AG Groningen, The Netherlands
D. O. Boerma
Affiliation:
Materials Science Center, University of Groningen, Nijenborgh 4, NL 9747 AG Groningen, The Netherlands
J. Th.M. de Hosson
Affiliation:
Materials Science Center, University of Groningen, Nijenborgh 4, NL 9747 AG Groningen, The Netherlands
L. Niesen
Affiliation:
Materials Science Center, University of Groningen, Nijenborgh 4, NL 9747 AG Groningen, The Netherlands
Get access

Abstract

A possibility to manipulate the microstructure of cold rolled (down to less than 1% of the initial thickness) Fe94Ni4Ti2 and Fe93Ni4 Cr3 foils via inter-phase cycling by nitriding and de-nitriding is investigated. The grains in the as-rolled material had a dominating (001)[110] texture and contained a complicated internal nanostructure due to a dislocation network. The interphase cycling α↔γ'-Fe4N and α↔ε-FexN (x∼3) was investigated as a tool to change or destroy the texture. We observed that the α↔γ'-Fe4N phase transformations weaken but do not erase the texture. A stronger reduction of the texture was obtained in the α↔ε-cycling, where grains with a new orientation appear in XRD scans. During the α↔γ' phase transformation a lamella structure is formed which is coarsening with the number of cycles. It was found that the rates of the α↔γ' and α↔ε interphase transitions were slowing down with the number of cycles. The observation is explained by an increase of kinetic barriers while removing/transforming the rolling-induced defects during the cycling.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 652: Symposium Y – Influences of Interface & Dislocation Behavior on Microstructure Evolution , 2000 , Y8.1
Copyright
Copyright © Materials Research Society 2001

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Chen, Chih-Wen, Magnetism and metallurgy of soft magnetic materials, North-Holland, 1977 Google Scholar
2. Berkowitz, A. E. and Kneller, E., (ed.), Magnetism and metallurgy, Academic Press, 1969 Google Scholar
3. Lehrer, E., Z. Electrochemie, 30, 383 (1930)Google Scholar
4. Voorthuysen, E.H. du Marchie van et al. , Phys. Stat. Sol. (a) 177, 127 (2000)Google Scholar
5. Phillips, V.A., and Seybolt, A.U., Trans. Met. Soc. AIME, 24, 2416 (1968)Google Scholar
6. Mortimer, B., Grieveson, P., and Jack, K.H., Scand. J. Met. 1, 203 (1972)Google Scholar
7. Jack, D.H., Acta Metall., 24, 137 (1976)Google Scholar
8. Ronay, M., Met. Trans. A, 12A, 1951 (1981)Google Scholar
9. Rickerby, D.S., Henderson, S., Henry, A., and Jack, K.H., Acta Metall., 34, 1687 (1986)Google Scholar
10. Somers, M.A., Lankreijer, R.M. and Mittemeijer, E.J., Philos. Mag. A, 59, 353 (1989)Google Scholar
11. Chechenin, N.G., Bronsveld, P.M., Chezan, A., Craus, C.B., Boerma, D. O., Hosson, J.Th.M.de, and Niesen, L., Phys. Stat. Sol. (a), 177, 117 (2000)Google Scholar
12. Chezan, A., Chechenin, N. G., Bronsveld, P.M., Craus, C.B., Boerma, D. O., and Hosson, J.Th.M.de, to be publishedGoogle Scholar
13. Mijiritskii, A.V. and Boerma, D.O., Phys. Rev. B (to be published)Google Scholar
14. Porter, D.A. and Easterling, K.E., Phase Transformation in Metals and Alloys, Chapman & Hall, 1992 Google Scholar
15. Chechenin, N.G., Veen, A. Van, Galindo, R. Escobar, Schut, H., Chezan, A., and Boerma, D. O., Report on 12th Int.Conf. on Positron Anihilation, Mater. Sci. Forum, (in print)Google Scholar
16. Wriedt, H.A., Gokcen, N.A. and Nafziger, R.H., Bulletin of Alloy Phase Diagrams, v. 8, no 4 355 (1987)Google Scholar