Institute of Physics of Materials AS CR, v. v. i. > Projects > Impact of hydrogen on structural and functional properties of NiTi shape memory alloys

Impact of hydrogen on structural and functional properties of NiTi shape memory alloys

Investigatorprof. RNDr. Antonín Dlouhý, CSc.
Number of Project8J21AT002
Internal Project Number421010
Duration2021-01-01 - 2022-12-31

Anotace
The primary objective is to provide an insight into interactions between hydrogen and NiTi matrix, in particular, to pin down basic physical characteristics of sorption and desorption processes. The fundamental questions we would like to answer are:
  1. What is the solubility of hydrogen in the NiTi matrix?
  2. Is hydrogen homogeneously distributed through the matrix (interstitial solid solution) or does it form a hydride phase?
  3. What is the impact of hydrogen on the overall mechanical properties?

2024

Weiser A., Todt J., Holcova J., Záležák T., Paulik A., Holec D., Jarý M., Zobač O., Mrázek J., Frenzel J., Keckes J., Dlouhý A.: Hydrogen penetration into the NiTi superelastic alloy investigated in-situ by synchrotron diffraction experiments. Acta Mater. 277 (2024) 120217


2023

Gehringer D., Friák M., Holec D.: Models of configurationally-complex alloys made simple. Computer Physics Communications 286 (2023) 108664