A mechanism of microcrater formation in metallic material irradiated by a low-energy high-current electron beam
- Autores: Ozur G.1, Proskurovsky D.1, Rotshtein V.2
-
Afiliações:
- Institute of High-Current Electronics, Siberian Branch
- Tomsk State Pedagogical University
- Edição: Volume 42, Nº 3 (2016)
- Páginas: 328-331
- Seção: Article
- URL: https://journals.rcsi.science/1063-7850/article/view/198331
- DOI: https://doi.org/10.1134/S1063785016030275
- ID: 198331
Citar
Resumo
Experiments with stainless steel (304L grade) samples exposed to microsecond pulses of high-current low-energy (10–30 keV) electron beam have been performed to determine dependences of the morphology, average diameter, and density of irradiation-induced microcraters on the beam energy density. A mechanism is proposed, according to which the crater formation is caused by radial spreading of the melt from the site of localization of a MnS inclusion under the action of the surface tension gradient caused by overheating of the inclusion. Estimations of the dimensions of microcraters are in satisfactory agreement with experimental data.
Palavras-chave
Sobre autores
G. Ozur
Institute of High-Current Electronics, Siberian Branch
Autor responsável pela correspondência
Email: ozur@Lve.hcei.tsc.ru
Rússia, Tomsk, 634055
D. Proskurovsky
Institute of High-Current Electronics, Siberian Branch
Email: ozur@Lve.hcei.tsc.ru
Rússia, Tomsk, 634055
V. Rotshtein
Tomsk State Pedagogical University
Email: ozur@Lve.hcei.tsc.ru
Rússia, Tomsk, 634061