S. E. Danilov, V. L. Arbuzov

SEPARATION OF A SOLID SOLUTION OF A Fe-Ni INVAR ALLOY WITH DIFFERENT TYPES OF POINT DEFECT SINKS UNDER ELECTRON IRRADIATION

Solid solution separation is studied for electron irradiation of a Fe-Ni alloy with different types of sinks of point defects in the form of dislocations and deformation-induced vacancy clusters. It is shown that the efficiency of deformation-induced dislocation sinks exceeds that of deformation-induced vacancy clusters. In isochronous annealing, two sub-stages of dissociation of vacancy clusters with dissociation energies of 1.2 and 1.5 eV are observed, which are independent of the method of creating vacancy clusters – deformation or electron irradiation.

Acknowledgment: The work was performed within the state assignment on the subject of Spin, No. АААА-А18-118020290104-2.

References:

1. Dimitrov C., Dimitrov O. Composition dependence of defect properties in electron-irradiated Fe-Cr-Ni solid solutions. Journal of Physics F: Metal Physics, vol. 14, no. 4, pp. 793–811. DOI: 10.1088/0305-4608/14/4/005.
2. Mantl S., Sharma B.D., Antesberger G. Positron annihilation studies on electron- and α-particle- irradiated 75Ni13Cr12Fe alloys. Phil. Mag. A, 1979, vol. 39, no. 4, pp. 389–397. DOI: 10.1080/01418617908239279.
3. Aliev S.S., Gruzin P.L., Menshikov A.Z., Mogutnov B.M., Rodionov Yu.L., Shaposhnikov N.G. Low-temperature phase transformations in iron-nickel alloys under electron irradiation. Metallophysika, 1985, vol. 7, no. 5, pp. 80–86.
4. Chamberod A., Laugier J., Penisson J.M. Electron irradiation effects on iron–nickel invar alloys. Journal of Magnetism and Magnetic Materials, 1979, vol. 10, pp. 139–144. DOI: 10.1016/0304-8853(79)90165-3.
5. Arbuzov V.L., Druzhkov A.P., Danilov S.E. Effect of phosphorous on defects accumulation and annealing in electron-irradiated Fe-Ni austenitic alloys. J. Nucl. Mater., 2001, vol. 295, iss. 2–3, pp. 273–280. DOI: 10.1016/S0022-3115(01)00505-0.
6. Danilov S.E., Arbuzov V.L., Pecherkina N.L., Sagaradze V.V. Separation of radiation defects in deformed nickel. The Physics of Metals and Metallography, 2015, vol. 116, no. 7, pp. 711–717. DOI: 10.1134/S0031918X15070042.
7. Druzhkov A.P., Arbuzov V.L., Perminov D.A. Accumulation and Annealing of Radiation Defects in Deformed Austenitic Alloys. The Physics of Metals and Metallography, 2002, vol. 94, no. 1. pp. 68–72.
8. Arbuzov V.L., Danilov S.E., Druzhkov A.P., Perminov D.A. The Influence of Plastic Deformation and Radiation Defects on the Structural and Phase Transformations of N36 and N36T2 Austenitic Alloys. The Physics of Metals and Metallography, 2004, vol. 98, no. 5, pp. 500–505.
9. Kubaschewski O. Iron-Binary Phase Diagrams, Springer-Verlag, Berlin, 1982, 185 p.

   

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