Radiation Effects in Tungsten and Tungsten-Copper Alloys Treated with Compression Plasma Flows and Irradiated with He Ions
Ryskulov A. Shymanski V. Ivanov I. Amanzhulov B. Dauhaliuk A. Uglov V. Temir A. Astashynski V. Sapar A. Kuzmitski A. Ungarbayev Y.
September 2024Multidisciplinary Digital Publishing Institute (MDPI)
Materials
2024#17Issue 18
The paper presents the results of studying the structure and phase state of tungsten and tungsten-copper alloy after pulsed action of compression plasma flows and irradiation with helium ions. The compression plasma flows were used to modify the surface layer of tungsten, as well as to create an alloy based on tungsten and copper. Using scanning electron microscopy and X-ray structural analysis, the formation of radiation defects on the tungsten surface was detected in the form of local areas of exfoliation and destruction, which begin to form at helium ion irradiation doses of 2 × 1017 cm−2. It is shown that preliminary plasma treatment of the surface in the melting mode leads to the complete disappearance of surface radiation defects up to a dose of 2 × 1017 cm−2, which may be associated with the formation of a fine-crystalline grain structure, the intergranular boundaries of which serve as effective sinks for primary radiation defects.
blistering , compression plasma flows , copper , helium ions , ion irradiation , radiation effects , tungsten
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Institute of Nuclear Physics, Almaty, 050032, Kazakhstan
Department of Solid State Physics, Belarusian State University, Minsk, 220030, Belarus
Engineering Profile Laboratory, L.N. Gumilyov, Eurasian National University, Astana, 010008, Kazakhstan
Physical-Technical Faculty, L.N. Gumilyov, Eurasian National University, Astana, 010008, Kazakhstan
A.V. Luikov Heat and Mass Transfer Institute of National Academy of Science of Belarus, Minsk, 220072, Belarus
Institute of Nuclear Physics
Department of Solid State Physics
Engineering Profile Laboratory
Physical-Technical Faculty
A.V. Luikov Heat and Mass Transfer Institute of National Academy of Science of Belarus
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