Виробництво антирадіаційних сталей
The results of research on the development of technology and the creation of boron-containing steels intended for protection against radiation, including hard neutron- and g-radiation, are presented. An analysis of the behavior of boron in the smelting of converter steel with ladle processing and ca...
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| Date: | 2023 |
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| Main Author: | |
| Format: | Article |
| Language: | Ukrainian |
| Published: |
Physico-technological Institute of Metals and Alloys
2023
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| Subjects: | |
| Online Access: | https://www.metalsandcasting.com/index.php/mcu/article/view/178 |
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| Journal Title: | Metal and Casting of Ukraine |
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Metal and Casting of Ukraine| Summary: | The results of research on the development of technology and the creation of boron-containing steels intended for protection against radiation, including hard neutron- and g-radiation, are presented. An analysis of the behavior of boron in the smelting of converter steel with ladle processing and casting in continuous casting machine (CCM) has performed. The physicochemical characteristics of the processes of formation of the structure of steel with the participation of the effective boron Вef have been determined. For steel grade B of ASTM A514 standard, a production technology is developed and tested under industrial conditions to obtain a high content of effective boron Вef in it. A calculated boron assimilation coefficient is established to be of 0.95 upon receipt of a continuously cast billet. The uniformity of the distribution of effective Вef boron in the matrix is characterized by the value of the annealed metal layer, determined by standard measurements of hardness. Based on the results, a technology is proposed for the production of converter steel with multi-reagent ladle processing and casting on a continuous casting machine in a continuously cast billet, providing a hardened layer depth of up to 40, and in some cases up to 50 mm, further increasing the protective properties of ASTM A514 grade B steel against hard neutron penetration and g-radiation by 4–5 times. The proposed technology, the main technical solutions of which are protected by the Ukrainian patent for an invention, has been tested under industrial conditions and can be used for smelting anti-radiation steels for various purposes. |
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