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Hindi Journal of Nanomaterials & Molecular NanotechnologyISSN: 2324-8777
Velikov А Author
Subjects of specialization
Affiliation
Nanoscience, Nanotubes, Nanomaterials, Nanotechnology, Nanoparticles.
Institute of Metal Science, Equipment and Technologies with Hydroaerodynamics Centre "Acad. A. Balevski", Bulgarian Academy of Sciences, Sofia, Bulgaria
Biography
INVESTIGATION OF THE INFLUENCE OF DIFFERENT MODIFIERS ON THE EUTECTIC SI IN THE COMPOSITION OF ALSI18 ALLOY is one of the main research works of Velikov. Velikov is from the Institute of Metal Science, Equipment and Technologies with Hydroaerodynamics Centre, Bulgarian Academy of Sciences, Sofia, Bulgaria
Publications
Research Article Open Access
Study of the Influence of Modification by Nanocompositions both on the Process of Crystallization and on the Structure of Aluminum Alloy AlSi7Mg
Author(s): Kuzmanov P*, Velikov Ð, Dimitrova R, Cherepanov A and Manolov V
A study of the cast alloy A356, modified by various types of nanoparticles has been carried out. SiC, AlN, TiN, clad by Cu, Ag and Al have been used. The cladding has been done by the following methods: currentless chemical method, extrusion of a composite rod, tableting and mechanical-chemical treatment in a planetary mill. The obtained nanocompositions (NCs) have been introduced into the crucible of the furnace. Homogenization has been conducted after that by using an impeller. The samples have been cast in thin-walled steel containers. The non-stationary temperature has been measured during cooling and crystallization. Data about the dependencies of the temperature on time have been obtained and the magnitude of overcooling for the cases with and without NCs has been determined. It h... view more»
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