20.500.12556/DiRROS-23720 Tribo-corrosion properties of a NiTi dental wire Tribokorozijske lastnosti dentalne žice NiTi NiTi-alloy arch wires are used in dental medicine for tooth positioning. Failures are reported during the mounting and operation. It is supposed that these difficulties are results of a simultaneous presence of corrosion and mechanical wear. First, a corrosive medium was examined in order to simulate the conditions in the mouth. Different simulated body fluids were compared with natural saliva using electrochemical methods. The corrosion properties of the NiTi dental wire in the as-received state and without the surface oxide film were studied with electrochemical impedance spectroscopy. Tribo-corrosion tests of NiTi in artificial saliva were performed and a relation between the chemical and mechanical wear was studied. After the experiment, the surface was spectroscopically examined. The relation between the chemical and mechanical wear was determined. Žice zlitine NiTi se uporabljajo v dentalni medicini za oblikovanje zobnega loka. Med namestitvijo in uporabo se večkrat pojavijo pretrgi. Domneva se, da je vzrok sočasna korozija in mehanska obraba. Raziskava je bila najprej usmerjena v iskanje primernega korozivnega medija, ki nadomešča razmere v ustih. Z elektrokemijskimi metodami smo primerjali več različnih sintetičnih slin z vzorcem naravne sline. Korozijski preizkusi dentalne žice NiTi z oksidno plastjo (dostavljen vzorec) v primerjavi z žico brez oksidne plasti so bili izvršeni z elektrokemijsko impedančno spektroskopijo. Tribokorozijski preizkusi v umetni slini so pokazali odnos med kemijskim in mehanskim prispevkom obrabe. Po eksperimentu je bila površina spektroskopsko pregledana. Določena je bila odvisnost med kemijsko in mehansko obrabo. nickel alloys titan alloys simulated saliva passive film tribo-corrosion electrochemical impedance spectroscopy nikljeve zlitine titanove zlitine umetna slina pasivna plast tribokorozija elektrokemijska impedančna spektroskopija true false true Inštitut za kovinske materiale in tehnologije Angleški jezik Slovenski jezik Neznano 2025-09-26 11:13:08 2025-09-26 11:28:39 2025-10-24 03:54:56 0000-00-00 00:00:00 2014 0 0 str. 467-472 št. 4 Letn. 48 jul.-avg. 2014 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2014-07-01 620.193:669.24'295 1580-2949 2061671 http://mit.imt.si/izvodi/mit144/mocnik.pdf 0 04fca666-9ab9-11f0-9bb7-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=35151 RAZ_Mocnik_Petra_2014.pdf RAZ_Mocnik_Petra_2014.pdf 1 F58E7864488044DA848D6ADB6D45ADD6 2498df3c08e306f5ddc1a1dcc739ca752496aed4be1999059a2eee49a4c7fa06 2bf786c3-9abb-11f0-9bb7-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=35152 Zavod za gradbeništvo Slovenije 0 0 0