volume 51

20160506-55
Laser welding under reduced pressure
Philipp Sieber, Björn Hansen, Thorsten Löwer, Alexander Maaz

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The increasing market demand for the application of solid-state lasers in industrial welding processes requires a fundamental adjustment of the process technology and the system concept. An almost spatter-free high efficient ...  read more

20160506-54
Electron spectrometer for electron impact ionization studies in e-COL Laboratory
Mevlut Dogan, Zehra Nur Ozer

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Various types of electron spectrometers have been developed to have sufficient resolution and count rate to allow detailed study of electron impact ionization process. Electron spectroscopy has established itself as one of ...  read more

20160506-53
Training students using presentations at meetings in the fields of physics, engineering and technologies
Tomomi Tanioka, Katia Vutova, Masayuki Yamauchi, Takeshi Tanaka

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Rapid globalization requires for researchers and engineers to have broad scientific knowledge, logical thinking, problem-solving ability, and expressiveness. To improve these skills and to help students advance in their practical ...  read more

20160506-52
Obtaining of pure molybdenum through electron beam melting of scrap materials
Vania Vassileva, Katia Vutova, Maria Naplatanova, Nagegownivari Munirathnam, Dinesh Amalnerkar

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Investigations are carried out applying electron beam melting method for obtaining of pure molybdenum from waste materials. The obtained results are presented and factors controlling the refining processes of metal impurities ...  read more

20160506-51
Fractal geometry in metallurgy of welding and coatings
Ekaterina A. Krivonosova, Ekaterina K. Krivonosova, Dmitry N. Trushnikov, Ilya S. Ponomarev

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Application of new methods for the description of structure of metals and alloys, the identification of new quantitative structure-morphology tours are especially important to establish the relationship “structure – ...  read more

20160506-50
Testing of the technology of local electron-beam annealing of circular samples of titanium alloy VT8-1 applied to aircraft engine product – a welded compressor drum
Pavel Denysiuk

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In this paper the local heat treatment by an electron beam in vacuum is applied to the welded compressor drum of the aircraft engine made of VT8-1 titanium alloy. The alternative ЕВ technology is described, the method of ...  read more

20160506-49
The actual EB application spectrum and its prospects beside welding
Björn Hansen, Thorsten Löwer

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Since the industrial use of the electron beam as a reliable high power precision tool for challenging welding tasks, its properties have been applied to a wide application spectrum in manufacturing and scientific environment. ...  read more

20160506-48
Graphical user interface for optimization of starch modified by electron beam irradiation
Elena G. Koleva, Lilyana St. Koleva, Mirela Braşoveanu, Monica R. Nemţanu, Toni P. Paneva, Ventzislav K. Tzotchev

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Experimental investigation of electron beam induced graft copolymerization of starch (corn and potato), using electron beam generated by a linear accelerator with energy of 5.5 MeV and 6.23 MeV is performed. The modification ...  read more

20160506-47
20160506-46