Igar Pobal

Electron Beam Welding of Superconducting Cavities Made of Ultra-Pure Niobium
Igar L. Pobal, Siarhei V. Yurevich

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Manufacture of superconducting radiofrequency (SRF) cavities for modern accelerators requires ultra-purity niobium. Joining components of such cavities is only possible with the use of electron-beam welding. Investigations ...  read more

Electron beam modification of the Grade 2 titanium surface after ionplasma nitriding
Andrey N. Drobov, Siarhei V. Yurevich, Igar L. Pobol

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The change of structure of Grade 2 titanium subjected to ion-plasma nitriding at 850 ℃ for 5 hours in a gas atmosphere consisting of pure argon at the heating stage, and Ar + N2 in the soaking stage, after electron-beam exposure are investigated.

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Wire-based electron beam additive manufacturing of blocks and complex shape parts
Vitaliy H. Zaleski, Igar L. Pobol, Andrey A. Bakinovski, Artem D. Gubko, Alexander A. Burin

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In this paper, we investigated the possibility of complex geometric shapes thin-walled samples, as well as bulk specimens fabrication by the Electron beam additive manufacturing (EBAM) method from titanium, stainless steel ...  read more

Electron beam welding of thin sheet niobium
Igar L. Pobal, Siarhei V. Yurevich

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This paper presents the results of study of electron beam welding (EBW) of thin sheet niobium. The review of published data on EBW of niobium for superconducting radio-frequency (SRF) cavities was done. Relations between EBW ...  read more