**6. References**

162 Polycrystalline Materials – Theoretical and Practical Aspects

obtained experimentally (A) and by a theoretical calculation (B) under radiation up to dose

 A B <sup>1</sup> MPa ……………….. 285 284.149 <sup>2</sup> MPa ……………….. 10 7.631 \* MPa ……………….. 295 291.78 According to the data shown at Fig. 4.4., the essential yield strength increment of X18H10T

Fig. 4.4. Yield strength temperature dependence of austenic X18H10T steel: 1 – no irradiated, 2 – irradiated by (*е*,) – beams up to dose of 1025 el/cm2. Point labels are experimental; the lines are plots of theoretical dependence calculated by Eq. (4.3).

In this chapter, three models are proposed to describe the properties of irradiated deformed

The first model (see section 2) describes the dose dependence of the yield strength of the irradiated material. It is generalization of the model known earlier (see for instance [5]), as the recombination effects of the radiation – induced vacancy and interstitial barriers and their clusterization are taken into account in it. Within the framework of the model formulated, it is found that the saturation quantity of the yield strength decreases with increasing both the intensity of the mutual barrier recombination and the clusterization intensity. It follows to note that in spite of model's assumption for the mean sizes of the radiation-induced barriers *di* and the shear modulus to be independent the shear modulus increases practically owing to the radiation point defects come on the dislocation and reduce

of 1025 el/cm2 for X18H10T steel.

steel is observed after radiarion.

**5. Conclusion** 

polycrystalline materials.


[11] A.M. Parshin, I.M. Neklyudov, N.V. Kamyshanchenko, et al., Physics of Radiation

[12] A. A. Parkhomenko, Microstructure and Radiation Embrittlement of Nickel and

[13] M. P. Zeidlits, L. S. Ozhigov, A. A. Parkhomenko, et al. @Influence High Energy

[14] V. F. Zelensky, I. M. Neklyudov, L. S. Ozhigov, et al., Utilization of Electron

[16] I.M. Neklyudov, I.S. Ozhigov, A.A. Parkhomenko. Utilization of the charge particles of

[17] V.F. Zelensky, I.S .Ozhigov, I.M. Neklyudov, Proc. Int. Conf. Irradiation behavior of metallic for fast reactor core components. – France, Corce. 1979. – pp.131-160.

Properties of Fusion Reactor Materials, J. Nucl. Mater., 207, 280 (1993). [15] I. M. Neklyudov, V. N. Voevodin, L. S. Ozhigov, et al., Temperature Dependences of

Rad. Mater. Sc., No. 1 (2), 36 (1975) [In Russian].

Physics, No. 4, 87 (2004) [In Russian]

Mater. – 1993. – Vol. 207. – pp.280-285.

Russian].

(1998) [In Russian].

Phenomena and Radiation Material Science (Publishing BSU, Belgorod, 1998) [In

OX16P15M3Б Steel, Electron microscopy and Durability of Crystals, No. 9, 103

Electron Radiation on Radiation Hardening of Nickel, Vanadium, Iron and Their Alloys, Problems of Atomic Science and Technology. Series: Phys. Rad. Dam., and

Accelerators for Simulation and Studies of Radiation Effects on Mechanical

Mechanical Properties and Radiation Hardening of Materials, Izv. TulSU. Ser.

accelerators for simulation of reactor damage effects V.F. Zelensky, // J. Nucl.

*Edited by Zachary Todorov Zachariev*

The book "Polycrystalline Materials - Theoretical and Practical Aspects" is focused on contemporary investigations of plastic deformation, strength and grain-scale approaches, methods of synthesis, structurals, properties, and application of some polycrystalline materials. It is intended for students, post-graduate students, and scientists in the field of polycrystalline materials.

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Polycrystalline Materials - Theoretical and Practical Aspects

Polycrystalline Materials

Theoretical and Practical Aspects

*Edited by Zachary Todorov Zachariev*