Continuous vertical casting of a NiTi alloyStambolić, Aleš (Avtor) Anžel, Ivan (Avtor) Lojen, Gorazd (Avtor) Kocijan, Aleksandra (Avtor) Jenko, Monika (Avtor) Rudolf, Rebeka (Avtor) , Inštitut za kovinske materiale in tehnologije (Lastnik avtorskih pravic) NiTi alloycontinuous vertical castingmicrostructurepotentiodynamic and impedance testIn this paper we present research that is connected to the performance of a series of experiments combined with the vacuum-induction melting and continuous vertical casting of a NiTi alloy in order to produce the strand. The theoretical chosen parameters made it possible to obtain a continuously cast strand with a diameter of 11 mm. The strand microstructures were investigated with a light and scanning electron microscope, while the chemical composition of the single phase was identified with the semi-quantitative micro-analysis energy-dispersive X-ray spectroscopy and inductively coupled plasma – optical emission spectrometry. The research showed that the microstructure is dendritic, where in the inter-dendritic region the eutectic is composed of a dark NiTi phase and a bright TiNi3–x phase. In some areas we found Ti carbides and phases rich in Fe. The micro-chemical analysis of the NiTi strand showed that the composition changed over the cross and longitudinal sections, which is proof that the as-cast alloys are inhomogeneous. In the final part, the electrochemical behaviours of NiTi strand samples were compared to a commercially available NiTi cast alloy with the same composition.Inštitut za kovinske materiale in tehnologije Ljubljana20162017-03-14 15:54:39Znanstveno delo65173ISSN: 1580-2949UDK: 621.74.047:669.24:669.295OceCobissID: 106193664COBISS_ID: 20059926DOI: 10.17222/mit.2016.111ISSN pri članku: 1580-2949NUK URN: URN:SI:UM:DK:36SBLQT3sl