A Gleeble 3800 thermomechanical process physical simulator unit is used to study the structure and mechanical properties of corrosion-resistant steel with a high boron content intended for production of hexagonal pipes for exhausted nuclear fuel storage. Compression tests at room and elevated temperature show that with an increase in test temperature from 20 to 600°C yield strength and flow stress decrease by a factor of two in the steady-state stage, and over the whole test temperature range the steel demonstrates good ductility in compression. The steel’s structure does not undergo marked changes during deformation: stringing, formed during hot forging, is retained during subsequent plastic deformation.
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The work was carried out with financial support from the Russian Federation Ministry of Education and Science for implementing a comprehensive plan for creating high-tech production on the theme: “Creation of modern storage for heat-releasing assemblies using steels with increased boron content.”
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Translated from Metallurg, No. 11, pp. 70–73, November, 2014.
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Churyumov, A.Y., Khomutov, M.G., Tsar’kov, A.A. et al. Boron-Containing Steel Structure and Properties at Room and Elevated Temperature. Metallurgist 58, 992–997 (2015). https://doi.org/10.1007/s11015-015-0029-1
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DOI: https://doi.org/10.1007/s11015-015-0029-1