Funct. Mater. 2013; 20 (3): 351-356.

http://dx.doi.org/10.15407/fm20.03.351

Radiation resistance of Ti—20Zr  alloy in microcrystalline and nanocrystalline state

V.A.Belous, O.V.Borodin, V.V.Bryk, R.L.Vasilenko, V.N.Voyevodin, A.S.Kuprin, V.D.Ovcharenko, E.N.Reshetnyak, G.N.Tolmachova

National Science Center "Kharkiv Institute of Physics and Technology", Kharkiv, Ukraine

Abstract: 

In this work we studied structure of Ti—20Zr  alloy in recrystallized and nanocrystalline conditions before and after irradiation by Zr3+ ions with energy 1.8  MeV to 80  dpa at 500°  C. By transmission electron microscopy methods it was showed that irradiation of the alloy in the recrystallized state induced formation of c type dislocation loops, which are common characteristic of accelerated radiation-growth of the materials with hcp lattice. Irradiation of the nanostructured material leads to an isotropic increase in the grain size (from 49  nm to 146  nm); the signs of accelerated radiation-growth were not detected.

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