Thermal annealing effects on microstructure and mechanical properties of the Ta-W-Ta solid phase joints for neutron producing targets of the research nuclear facility “Source of Neutrons”

• Main Authors: Lopata, A.A., Domnich, M.P., Borts, B.V., Zelinsky, A.Yu., Parkhomenko, A.A., Sytin, V.I., Tkachenko, V.I., Vorobyov, I.A., Pidlisnyi, A.D., Patochkin, I.V., Gluschenko, L.I.
• Format: Article
• Language: English
• Published: Національний науковий центр «Харківський фізико-технічний інститут» НАН України 2022
• Series: Вопросы атомной науки и техники
• Subjects: Interaction of relativistic particles with crystals and matter
• Online Access: http://dspace.nbuv.gov.ua/handle/123456789/195385

The paper considers the neutron-producing tantalum-tungsten-tantalum target using a niobium interlayer manu-facturing variant by means of vacuum hot roll bonding for the research nuclear facility “Source of Neutrons”. The metallography results and the Ta-W-Ta solid-phase junction specimens mechanical testing ones obtained by hot roll bonding in vacuum, both immediately after production and after the heat treatment in the temperature range of 900…1300°C after roll bonding, are presented. The influence of thermal annealing on the interaction nature of the clad layers with each other and with the core tungsten material of the Ta-W-Ta solid-phase junctions with Nb inter-layers obtained by vacuum hot roll bonding has been studied.