Issues »  Volume 38, Issue 10

A Study of Atomic Displacements Produced in Cascades in Irradiated $\alpha$-Zr by Using Molecular Dynamics Simulations

Yu. M. Ovcharenko$^{1}$, S. V. Kokhan$^{1}$, D. O. Kharchenko$^{1}$, X. Wu$^{2}$, B. Wen$^{2}$, L. Wu$^{2}$, W. Zhang$^{2}$

$^{1}$Institute of Applied Physics, NAS of Ukraine, 58 Petropavlivska Str., 40000 Sumy, Ukraine
$^{2}$The First Institute, Nuclear Power Institute of China, 328, the 1st Section, Changshundadao Road, Shuangliu, Chengdu, China

Received: 25.05.2016. Download: PDF

We study the cascades’ formation, development and annealing in pure zirconium crystals irradiated in different irradiation conditions. Statistical and geometric properties of cascades are studied in details by varying sample temperature, energy of primary knocked atoms, and direction of their motion. A possibility of channelling at cascades development is shown; it results in formation of crowdions. A change in statistical properties of the crystal during cascades’ development and a relaxation time of cascades are studied. A possibility of formation of different-type defects after cascades’ annealing is discussed.

Key words: molecular dynamics, embedded atom method, cascade, point defects.

URL: http://mfint.imp.kiev.ua/en/abstract/v38/i10/1303.html

DOI: https://doi.org/10.15407/mfint.38.10.1303

PACS: 31.15.xv, 34.20.-b, 61.72.Bb, 61.72.Cc, 61.72.jd, 61.72.jj, 61.80.Az, 61.85.+p

Citation: Yu. M. Ovcharenko, S. V. Kokhan, D. O. Kharchenko, X. Wu, B. Wen, L. Wu, and W. Zhang, A Study of Atomic Displacements Produced in Cascades in Irradiated $\alpha$-Zr by Using Molecular Dynamics Simulations, Metallofiz. Noveishie Tekhnol., 38, No. 10: 1303—1320 (2016)

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