Manufacturing Technology 2016, 16(5):1095-1100 | DOI: 10.21062/ujep/x.2016/a/1213-2489/MT/16/5/1095

Contribution of Microscopy to Clarify the Mechanism of Ni-Ti Phases Formation During Reactive Sintering

Pavel Novák¹, Pavel Salvetr¹, Kateřina Nová¹, Jaromír Kopeček², Miroslav Karlík³, Davy Deduytsche⁴, Christophe Detavernier⁴, Lucyna Jaworska⁵

¹ University of Chemistry and Technology, Prague, Department of Metals and Corrosion Engineering, Technická 5, 166 28 Prague 6, Czech Republic

⁴ Ghent University, Department of Solid State Sciences, Krijgslaan 281 S1 9000 Gent, Belgium

⁵ Institute of Advanced Manufacturing Technology, 37a Wroclawska St., 30-011 Krakow, Poland

NiTi alloy exhibits the shape memory effect, which implies the application in medicine and also many industrial branches. This paper is devoted to the manufacture of these alloys by the use of powder metallurgy using reactive sintering. This method could enable easier production of this alloy and achievent of higher purity. However, for the optimization of this technology, the deeper knowledge of the mechanism of the process is needed. This work uses microscopy on real powder mixtures subjected to reactive sintering, as well as on model samples processed under various conditions.

Keywords: NiTi, reactive sintering, mechanism, microscopy

Published: October 1, 2016  Show citation