On the coupling between martensitic transformation and plasticity in NiTi: experiments and continuum based modelling

0493539 - FZÚ 2019 RIV GB eng J - Journal Article
Šittner, Petr - Sedlák, P. - Seiner, H. - Sedmák, P. - Pilch, Jan - Delville, R. - Heller, Luděk - Kadeřávek, Lukáš
On the coupling between martensitic transformation and plasticity in NiTi: experiments and continuum based modelling.
Progress in Materials Science. Roč. 98, Oct (2018), s. 249-298. ISSN 0079-6425. E-ISSN 1873-2208
R&D Projects: GA ČR GA16-20264S; GA ČR GA16-00043S; GA ČR GB14-36566G
Institutional support: RVO:68378271
Keywords : shape memory alloy * martensitic transformation * plasticity * thermomechanical loading * mechanics modelling * X-ray diffraction * Nitinol * transmission electron microscopy
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 23.725, year: 2018

Recent macroscopic experimental and theoretical evidence on the stress-strain-temperature behavior of NiTi beyond the strain recoverability limits (large strain, high stress, high temperature), where reversible martensitic transformation tends to proceed together with irreversible plastic deformation processes, is reviewed.Model predictions on the transformation –plasticity coupling are laid out based on the mathematical theory of martensitic microstructures and the crystal plasticity theory. A particular attention is paid to the strain compatibility at moving phase interfaces that may have a direct impact on the plasticity accompanying the martensitic transformation.It is suggested that strong transformation-plasticity coupling shall be expected during the reverse martensitic transformation.Macroscopic models from the literature capable of simulation of thermomechanical responses of NiTi polycrystals due to coexisting martensitic transformation and plastic deformation are reviewed.
Permanent Link: http://hdl.handle.net/11104/0286890