Erosion properties of tungsten and WTa5 alloy exposed to repetitive QSPA plasma loads below melting threshold

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dc.contributor.authorMakhlai, V. A.en
dc.contributor.authorHerashchenko, S. S.en
dc.contributor.authorAksenov, N. N.en
dc.contributor.authorByrka, O. V.en
dc.contributor.authorGarkusha, I. E.en
dc.contributor.authorMalykhin, S. V.en
dc.contributor.authorSurovitskiy, S. V.en
dc.contributor.authorKulik, N. V.en
dc.contributor.authorStaltsov, V. V.en
dc.contributor.authorLebedev, S. I.en
dc.contributor.authorShevchuk, P. B.en
dc.contributor.authorWirtz, M.en
dc.contributor.authorSadowski, M. J.en
dc.date.accessioned2021-08-11T12:20:36Z
dc.date.available2021-08-11T12:20:36Z
dc.date.issued2018
dc.description.abstractThe damage of deformed double forged pure tungsten (W) and tungsten alloyed with 5 wt.% tantalum (WTa5) have been studied in experimental simulations of ITER-like transient events (surface heat load of 0.45 MJ/m² and the pulse duration of 0.25 ms) with quasi-stationary plasma accelerator QSPA Kh-50. The plasma exposures were performed for targets maintained at room temperature and preheated at 200 or 300°C. The large and fine cracks appeared in result of plasma impacts. The high number of repetitive plasma loads below the melting threshold led to the clear degradation of thermo-mechanical properties of the affected surface layers on tungsten. Comparative analysis of the cracks propagation to the bulk is presented for both W and WTa5 samples.en
dc.identifier.citationErosion properties of tungsten and WTa5 alloy exposed to repetitive QSPA plasma loads below melting threshold / V. A. Makhlai [et al.] // Problems of atomic science and technology. Ser. : Plasma physics. – 2018. – No. 6 (118). – P. 59-62.en
dc.identifier.urihttps://repository.kpi.kharkov.ua/handle/KhPI-Press/53860
dc.language.isoen
dc.publisherKharkiv Institute of Physics and Technologyen
dc.subjecttungstenen
dc.subjectheat loaden
dc.subjectthermo-mechanical propertiesen
dc.subjectplasma loadsen
dc.titleErosion properties of tungsten and WTa5 alloy exposed to repetitive QSPA plasma loads below melting thresholden
dc.typeArticleen

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