11 KB562 KB8 KB200020262013Ayday, AysunKurnaz, Süleyman CanÖbekcan, MedihaŞevik, Hüseyinštevilka:3letnik:47str. 299-301ISSN:1580-2949COBISSID:998058URN:URN:NBN:SI:doc-U3OQZWQHenInštitut za kovinske materiale in tehnologijeMateriali in tehnologijekositermagnezijeve zlitinemehanske lastnostistroncijAddition of strontium to an Mg-3Sn alloy and an investigation of its properties| Dodatek stroncija zlitini Mg-3Sn in preiskava njenih lastnosti|The effect of strontium additions in mass fractions of (0.05, 0.1, 0.2, 0.5 and 1) % to a magnesium alloy (Mg-3Sn) was investigated in this work. The alloys were gravity cast under a controlled atmosphere. The mechanical properties and the microstructures of the above alloys were examined and recorded. The results revealed that an addition of strontium to the above alloy had significantly affected its microstructure. The X-ray diffraction results showed that in all of the obtained alloys the main phases were a-Mg and Mg2Sn, and that the strontium-based intermetallics were not detected. The hardness values increased with the increasing strontium content. The highest yield strength, tensile strength and elongation were exhibited by the Mg-%3Sn-%0.1Sr alloyV tem delu je bil preiskovan učinek dodatka masnih deležev stroncija (0,05; 0,1; 0,2; 0,5 in 1) % magnezijevi zlitini (Mg-3Sn). Zlitine so bile gravitacijsko lite v kontrolirani atmosferi. Preiskane in ugotovljene so bile mehanske lastnosti in mikrostruture navedenih zlitin. Rezultati so pokazali, da dodatek stroncija pri tej zlitini močno vpliva na mikrostrukturo. Rezultati rentgenske difrakcije so pokazali, da so glavne faze a-Mg, Mg2Sn v preiskovanih zlitinah, niso pa bile odkrite intermetalne faze na osnovi stroncija. Vrednosti trdote so naraščale z naraščajočo vsebnostjo stroncija. Najvišja meja plastičnosti, najvišja trdnost in največji raztezek se je pokazal pri zlitini Mg-%3Sn-%0,1SrTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaInštitut za kovinske materiale in tehnologije