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Non-monotonic concentration dependence of the dynamic yield strength of irradiated metals and alloys

https://doi.org/10.34680/2076-8052.2025.3(141).400-407

Abstract

Within the framework of the theory of dynamic interaction of defects (DID), an analysis of plastic deformation of irradiated metals and alloys under the high-energy impacts is performed. An analytical expression for the dependence of the dynamic yield strength on the concentration of prismatic dislocation loops and point defects is obtained. The dependence of the dynamic yield strength on the concentration of point defects is nonmonotonic and has a minimum. The position of the minimum is due to the competition between the dynamic drag forces of dislocations caused by different types of structural defects.

About the Author

V. V. Malashenko
Galkin Donetsk Institute for Physics and Engineering
Russian Federation

Donetsk



References

1. Abernethy R. G., Gibson I. S. K.-L, Giannattasio A. Effects of neutron irradiation on the brittle to ductile transition in single crystal tungsten // Journal of nuclear materials. 2019. 527. 151799.

2. Prabhakaran S., Kulkarni A., Vasanth G. Laser shock peening without coating induced residual stress distribution, wettability characteristics and enhanced pitting corrosion resistance of austenitic stainless steel // Applied surface science. 2017. 428. 17–30.

3. Li P., Susmel L., Ma M. The life prediction of notched aluminum alloy specimens after laser shock peening by TCD // International journal of fatigue. 2023. 176. 107795.

4. Smith R. F., Eggert J. H., Rudd R. E., Swift D. C., Bolme C. A., Collins G. W. High strain-rate plastic flow in Al and Fe Collins // Journal of applied physics. 2011. 110. 123515 (1–11).

5. Tapasa K., Bacon D. J. and Osetsky Yu. N. Computer simulation of dislocation–solute interaction in dilute Fe–Cu alloys // Modelling and simulation in materials science and engineering. 2006.14. 1153–1166.

6. Fan H., El-Awady J. A., Wang Q., Raabe D., Zaiser M. Strain rate dependency of dislocation plasticity // Nature communications. 2021. 12 (1). 1–11. DOI: 10.1038/s41467-021-21939-1

7. Malashenko V. V. Influence of the misfit parameter of point defects on the dynamic yield strength of metals and alloys // Physics of the solid state. 2024. 66 (8). 1403–1407. DOI: 10.61011/FTT.2024.11.59336.246

8. Varyukhin V. N., Malashenko V. V. Dynamic effects in a defective system of crystal // Bulletin of the Russian Academy of Sciences: physics. 2018. 82 (9). 1101–1105. DOI: 10.3103/S1062873818090253

9. Malashenko V. V. Dynamic drag of edge dislocation by circular prismatic loops and point defects // Physica B condensed matter. 2009. 404 (21). 3890–3893. DOI: 10.1016/j.physb.2009.07.122

10. Kosevich A. M. Dislocations in the theory of elasticity. Kiev: Nauchnaya dumka Publ., 1978. 220 p.


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For citations:


Malashenko V.V. Non-monotonic concentration dependence of the dynamic yield strength of irradiated metals and alloys. Vestnik of Novgorod State University. 2025;(3(141)):400-407. (In Russ.) https://doi.org/10.34680/2076-8052.2025.3(141).400-407

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ISSN 2076-8052 (Print)