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Scientific project: Electrochem. proces. at phase bound. and physical proper. of surface-ELGRAFAIII

Project code  023-1252973-2243

Project name  Electrochem. proces. at phase bound. and physical proper. of surface-ELGRAFAIII

Senior researcher Jagoda Radošević

Institution of employment University of Split, Faculty of Electrical Engineering, Mechanical Engineering a...

Program name Modification and improvement of metal surfaces

Scientific area technical science

Peer review group Chemical Engineering;Mining, Oil and Geological engineering;Metallurgy;Textile Technology;Graphical Technology

Summary Composition, structure and energy distribution of electrons in thin metal oxide films play a key role in electrochemical processes at metal / metallic oxide / electrolyte phase boundaries. Many scientific papers have dealt with this topic, but information on the effect of some alloying elements on growth, stability and electrochemical properties of oxide films as well as the possibility of its corrosion protection is incomplete. Due to wide application and economic importance of aluminium, copper and nickel alloys, increasing attention has been turned to their protection from corrosion. However, a great number of commercial inhibitors used to that purpose is toxic, so that efforts have been recently made to replace them by natural, non-toxic substances. Results of previous research show that specific compounds isolated from plant material (rosemary leaves) are very effective corrosion inhibitors. In the project proposed, special attention will be given to microbiologically influenced corrosion (MIC) in seawater. The presence and metabolic activity of microorganisms on metallic surfaces (Al, CuNi10Fe) can lead to changes in oxygen concentration and pH value, which in turn affect the type of corrosion attack and its intensity. On the other hand, metabolic products of some microbiological species can act as "a brake" for the corrosion process. The results of studies proposed will contribute to understanding of the justification of application of materials proposed in the wide range of application, mainly as construction materials, as active materials in protector protection and in fuel cell development. The results of studies proposed will be published in international journals and refered presented at congresses. We expect these studies to contribute to modification of surface layers and to protection of materials and of the environment, providing an incentive to economic development.

Key words |Al alloys| Cu and Ni alloys,Oxide films,Inhibitors,H2 evolution ,Biocorrosion

Contract from 2.1.2007

Croatian scientific bibliography http://bib.irb.hr/lista-radova?sif_proj=023-1252973-2243&print=true&lang=EN

Address for communication
 Name and surname Jagoda Radošević
 Street and no. N. Tesle 10 / V., 21000, Split
   
   
 E-mail jagoda.radosevic@ktf-split.hr
 Web address www.ktf-split.hr
Project assistants 
  Name and Surname  Status
Igor Janjatović Researcher
Ratko Mimica Scientific novice
Jagoda Radošević Project leader
Sanja Slavica Matešić Researcher
Antonija Višekruna Researcher