Structural Evolution of a Zr–2.5% Nb Alloy during Long-Term Low-Temperature Neutron Irradiation

Autor:	V. L. Panchenko, V. A. Tsygvintsev, V. I. Pastukhov, S. A. Averin
Rok vydání:	2021
Předmět:	Materials science Annealing (metallurgy) Diffusion Alloy Metallurgy Metals and Alloys Niobium chemistry.chemical_element engineering.material Structural evolution chemistry Metallic materials engineering Neutron irradiation Grain structure
Zdroj:	Russian Metallurgy (Metally). 2021:635-639
ISSN:	1555-6255 0036-0295
DOI:	10.1134/s0036029521050025
Popis:	The channel pipes of the control and safety systems of RBMK-1000 reactors are made of a Zr–2.5% Nb (E125) alloy and must operate for 45 years. The evolution of the alloy structure under the action of long-term low-temperature neutron irradiation is studied. The grain structure of the alloy is shown to be stable; annealing of initial dislocations and the formation of radiation-induced defect take place. Radiation-induced diffusion processes, which lead to a decrease in the niobium content in β-Nd precipitates and the appearance of new fine-grained precipitates in the alloy matrix, are revealed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2caa0fc86747d737e083965df42d8700 https://doi.org/10.1134/s0036029521050025 Zobrazit plný text záznamu Full text from SpringerLink