| Issue |
EPJ Web Conf.
Volume 183, 2018
DYMAT 2018 - 12th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading
|
|
|---|---|---|
| Article Number | 03025 | |
| Number of page(s) | 6 | |
| Section | Microstructural Effects | |
| DOI | https://doi.org/10.1051/epjconf/201818303025 | |
| Published online | 07 September 2018 | |
https://doi.org/10.1051/epjconf/201818303025
Structure of U-Zr-Mo alloy shell after explosive loading
1
Russian Federal Nuclear Center – Zababakhin All-Russia Research Institute of Technical Physics (RFNC-VNIITF),
456770,
Snezhinsk,
Chelyabinsk region,
Russia
* Corresponding author: bad1331@gmail.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
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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