Structure of U-Zr-Mo alloy shell after explosive loading
Russian Federal Nuclear Center – Zababakhin All-Russia Research Institute of Technical Physics (RFNC-VNIITF),
* Corresponding author: email@example.com
Published online: 7 September 2018
This presentation describes investigation of a thick-wall spherical shell 48 mm in diameter from the alloy of uranium with molybdenum and zirconium, which survived after high-intensity explosive loading. Investigation was performed in the meridional section of the shell to obtain qualitative data on hardness and microhardness, metallurgical inclusions, damage, and also material microstructure. Structural changes are observed to widely present in the shell material. The localized damage observed both at R ≈ 12-14 mm and R ≈ 16-18 mm are the first and second converged spalls, respectively. What is more, in the southern sector the first spall was recompacted with the remelting of a large region of the material in the adjacent layers (region with the enhanced hardness for the first spall). Cracks of the second spall in the northern sector were also recompacted almost completely.
© The Authors, published by EDP Sciences, 2018
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