Radiation thermal processes in Cr13Mo2NbVB steel - The material of the fuel assembly shell in reactor BN-350 under mechanical tests

A. S. Larionov, A. S. Dikov, V. P. Poltavtseva, S. B. Kislitsin, M. V. Kuimova, A. V. Chernyavskii

Research output: Contribution to journalConference articlepeer-review

Abstract

Regularities of changes of structural-phase state and mechanical properties of steel 13Mo2NbVB - the material of the fuel assembly shell in reactor BN-350 after various mechanical tests at 350°C are experimentally studied. The formation of microprecipitations FeMo, enriched or depleted with molybdenum was found in the short-time mechanical tests, which is the cause of thermal hardening of irradiated Cr13Mo2NbVB steel and its destruction by the ductile-brittle mechanism. On the basis of long-time creep tests it was shown that the material of the spent fuel assembly shell has sufficient resource for long-time storage in the temperature and force conditions simulating long-time storage of spent nuclear fuel.

Original languageEnglish
Article number012035
JournalIOP Conference Series: Materials Science and Engineering
Volume81
Issue number1
DOIs
Publication statusPublished - 23 Apr 2015
EventInternational Scientific Conference on Radiation-Thermal Effects and Processes in Inorganic Materials, RTEP 2014 - Tomsk, Russian Federation
Duration: 3 Nov 20148 Nov 2014

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

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