22 KB200 KB16 KB200020262009Jordović, BrankaRadonjić, DraganVuksanović, DarkoŽivković, Petarštevilka:1letnik:43str. 49-53ISSN:1580-2949COBISSID:716970URN:URN:NBN:SI:doc-SN8GWJRHenInštitut za kovinske materiale in tehnologijeMateriali in tehnologijealuminijeve zlitinealuminium alloykemijska sestavakorozijamehanske lastnostimikrostrukturaInvestigation of the behaviour in chloride solution of aluminium alloys as materials for protector protections| Raziskava vedenja aluminijeve zlitine, materiala za varovalne elektrode, v kloridni raztopini|The aim of the investigations was to check the behaviour of Al-Zn-Sn aluminium cast alloys with additions of bismuth and gallium for potential application as a material for protecting protectors. The chemical composition, the mechanical characteristics, the microstructure and the corrosion properties were investigated. Particular attention was given to microstructural investigations aimed to identify the phases that might have anactive role for corrosion in chloride solution. Three corrosion tests were used: change in the corrosion potential with time, determination of the values for polarisation resistance and the corrosion current, and potentio-dynamic recording of the cathode and anode polarisation curvesCilj raziskave je bil preveriti vedenje litih zlitin Al-Zn-Sn z dodatkom bizmuta in galija kot možnih materialov za varovalne elektrode. Kemijske sestava, mehanske lastnosti, mikrostruktura in korozijske značilnosti so bile opredeljene. Posebna pozornost je bila namenjena mikrostrukturnim preiskavam, da se določi, katere faze bi lahko imele aktivno vlogo pri koroziji v kloridni raztopini. Ugotovljene so bile tri korozijske značilnosti: sprememba korozijskega potenciala s časom, polarizacijska upornost in gostota toka ter potenciodinamični katodna in anodna polarizacijaTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaInštitut za kovinske materiale in tehnologije