Version 1
: Received: 17 November 2023 / Approved: 20 November 2023 / Online: 20 November 2023 (07:25:27 CET)
How to cite:
Kengesbekov, A.; Rakhadilov, B.; Satbaeva, Z. Investigation of Microstructure and Mechanical Properties of Tungsten Irradiated by Helium Plasma. Preprints2023, 2023111205. https://doi.org/10.20944/preprints202311.1205.v1
Kengesbekov, A.; Rakhadilov, B.; Satbaeva, Z. Investigation of Microstructure and Mechanical Properties of Tungsten Irradiated by Helium Plasma. Preprints 2023, 2023111205. https://doi.org/10.20944/preprints202311.1205.v1
Kengesbekov, A.; Rakhadilov, B.; Satbaeva, Z. Investigation of Microstructure and Mechanical Properties of Tungsten Irradiated by Helium Plasma. Preprints2023, 2023111205. https://doi.org/10.20944/preprints202311.1205.v1
APA Style
Kengesbekov, A., Rakhadilov, B., & Satbaeva, Z. (2023). Investigation of Microstructure and Mechanical Properties of Tungsten Irradiated by Helium Plasma. Preprints. https://doi.org/10.20944/preprints202311.1205.v1
Chicago/Turabian Style
Kengesbekov, A., Bauyrzhan Rakhadilov and Zarina Satbaeva. 2023 "Investigation of Microstructure and Mechanical Properties of Tungsten Irradiated by Helium Plasma" Preprints. https://doi.org/10.20944/preprints202311.1205.v1
Abstract
The paper presents the results of the study of tungsten surface structure modification under helium plasma irradiation. It is revealed that during irradiation of samples, surface modification in the form of relief development as a result of irradiation is observed. X-ray phase analysis showed that no new phases of the W system were found after irradiation, only an increase in the intensity of diffraction lines was observed. There are significant differences in the microstructure of tungsten depending on the temperature of helium plasma irradiation in the above range. It is assumed that the cause of defects is the extremely low solubility of helium in tungsten. Metallographic analysis has shown that at irradiation of tungsten samples in regime 5 and 6 the degree of relief development is not high in comparison with the tungsten sample irradiated in regime 4. The greatest increase in roughness of the sample irradiated in regime 5 was determined, which is associated with the formation of small cracks, blisters and pores in the surface layer. At the same time, in the samples irradiated in regime 6, the surface of which is characterized by chaotically located protrusions and depressions of various shapes, the roughness parameter Ra was 0.0603 µm. It was found that at temperature regimes T = 1200 °C and T = 1500 °C the microhardness of tungsten increases by 11% and 10% respectively.
Keywords
plasma; linear plasma devices; plasma-surface interactions; vacuum; KAZ-PSI
Subject
Physical Sciences, Condensed Matter Physics
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
