Published February 19, 2021
| Version v1
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Net-Shape NiTi Shape Memory Alloy by Spark Plasma Sintering Method
Authors/Creators
- 1. FZU—Institute of Physics of Czech Academy of Sciences, Na Slovance 1999/2, 182 21 Prague, Czech Republic
- 2. Department of Metals and Corrosion Engineering, University of Chemistry and Technology, Prague, Technická 5, 166 28 Prague, Czech Republic
- 3. Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Studentska 2, 461 17 Liberec, Czech Republic
- 4. Department of Physical and Chemical Methodologies for Engineering, University of Catania, Viale A. Doria 6, 95125 Catania, Italy
- 5. Department of Civil Engineering and Architecture and UdR-Catania Consorzio INSTM, University of Catania, Viale Andrea Doria 6, 95125 Catania, Italy
Description
An analysis of the shape memory effect of a NiTi alloy by using the spark plasma sintering approach has been carried out. Spark plasma sintering of Ti50Ni50 powder (20–63 µm) at a temperature of 900 °C produced specimens showing good shape memory effects. However, the sample showed 2.5% porosity due to a load of 48 MPa. Furthermore, an apparent shape memory effect was recorded and the specimens were characterized by uniformity in chemical composition and shape memory alloys of NiTi showed significant austenite phases with a bending strain recovery of >2.5%.
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