In-situ experimental techniques for martensitic transformations
- Petr Sittner (Academy of Sciences of the Czech Republic, Institute of Physics, Prague, Czech Republic)
Experimental methods currently used at IoP ASCR in Prague for investigation of martensitic transformations in shape memory alloys (single crystals or polycrystalline samples) in-situ during thermomechanical loads will be briefly reviewed. The methods include: in situ ultrasonic studies of the propagation of acoustic waves in solids, in-situ electric resistivity measurements, in-situ neutron diffraction, in situ TEM using a dedicated thin foil holder for observation under applied stress, in-situ optical microscopy. Selected results achieved recently on CuAlNi and NiTi single and polycrystalline samples will be presented and discussed.