Metallographic sample preparation of orthodontic Ni-Ti wireZorko, Lidija (Avtor) Rudolf, Rebeka (Avtor) shape memory alloysNi-Ti wiremetallographic preparationmicrostructureShape memory alloys (SMA) has been at the forefront of research for the last several decades. In this field especially, Nickel-Titanium (Ni-Ti) alloys have been found to be the most useful of all SMA. The most important applications of SMA Ni-Ti alloys are namely in medicine and dentistry, where they are used as orthodontic wires. In this paper we describe the procedure of preparing metallographic samples of typical orthodontic Ni-Ti wires which are nowadays used in dentistry praxis. We prepared the samples for microstructure observation using a light microscope. Special attention is given to the metallographic preparation, which could result in damages and deformations of the sample surfaces if the procedure is incorrect. Finally, we illustrated the typical metallographic recipe for Ni-Ti SMA alloys for optical observation.20092012-05-31 13:58:34Neznano26540UDK: 669.245'295:621.315.554]:620.18COBISS_ID: 13873686ISSN pri članku: 0354-6306NUK URN: URN:SI:UM:DK:Q9LBF7Y3sl