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Short and Long-Range Ordering of (Ni0.67Cr0.33)1-xFex Alloys Under Electron Irradiation

Published online by Cambridge University Press:  15 February 2011

E. Frely ,
B. Beuneu ,
A. Barbu  and
G. Jaskierowicz
E. Frely
Affiliation:
CEA-LSI, Ecole Polytechnique, 91128 Palaiseau cedex, France, beuneub@hpl sesi.polytechnique.fr
B. Beuneu
Affiliation:
CEA-LSI, Ecole Polytechnique, 91128 Palaiseau cedex, France, beuneub@hpl sesi.polytechnique.fr
A. Barbu
Affiliation:
CEA-LSI, Ecole Polytechnique, 91128 Palaiseau cedex, France, beuneub@hpl sesi.polytechnique.fr
G. Jaskierowicz
Affiliation:
CEA-LSI, Ecole Polytechnique, 91128 Palaiseau cedex, France, beuneub@hpl sesi.polytechnique.fr
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Abstract

(Ni0.67Cr0.33)1-xFex alloys with x = 0, 5 and 10 at.%, have been irradiated at temperatures between 300°C and 500°C with the electrons of a 2.5MeV Van de Graaff accelerator and of a 1MeV High Voltage Electron Microscope (HVEM). All of them have been successively ordered at short and at long range under irradiation. The transition temperature is 525°C for Ni0.61Cr0.34Fe0.05 and 445°C for Ni0.59Cr0.31Fe0.10. An Inconel sample irradiated up to 1 d.p.a. in the 1MeV microscope did not show any superlattice peak although its composition is very close to the 10% iron model alloy. The kinetics of ordering has been followed by resistivity measurements and fitted by the Dienes kinetic model.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 439: Symposium B – Microstructure Evolution During Irradiation , 1996 , 373
Copyright
Copyright © Materials Research Society 1997

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