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Thursday, 17 March 2011 16:46

CORROSION RESISTANT  NANOCRYSTALLINE TI-8NI-CR SYSTEM ALLOYS  COATINGS

M.MIKABERIDZE, D.RAMAZASHVILI, L.AKHVLEDIANI,  E.GOZALISHVILI, V.GARIBASHVILI,  Z.MIRIJANASHVILI, V.GABUNIA
(Georgia)

Nanocrystalline coatings were received by electro spark alloying of the commercial titanium alloys samples surface with application bulk and a compact Ti-8Ni-(1-3)Cr alloys electrodes.  Compacting of powders was prepared by mechanical alloying, with subsequent cold pressing and high-temperature baking. The nanocrystalline coatings   increase mechanical properties, wear and corrosion resistance of a substrate and can be recommended for coatings of medical tools of multiply usage.




PHYSICO-CHEMICAL MECHANICS OF DEFORMATIONS OF CONSTRUCTION MATERIALS IN SURFACE-ACTIVE MEDIA

M. LORDKIPANIDZE
(Georgia)

Peculiarities of kinetics of the development of construction material (first of all concrete and steel) deformations placed in substance medium which is surface active (SAS) with regard to given material (substance) are researched in the work. We identified new phenomenon of such type which is based on the fact that the majority of solids placed in external medium having surface-active features with regards to its substance have unique feature to develop deformations under the effect of external stresses: stage of nonlinear reversible deformation (NRD). Such research is necessary for further detail elaboration of the proposals (at the stage of future applied researches) aimed at the improvement of operational performance of such materials.


Last Updated on Friday, 24 June 2011 07:31
 
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