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Smart Structures and Systems Volume 29, Number 2, February 2022 , pages 311-319 DOI: https://doi.org/10.12989/sss.2022.29.2.311 |
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Effect of plastic deformation on the martensitic transformations in TiNi alloy |
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Fedor S. Belyaev, Margarita E. Evard and Aleksandr E. Volkov
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| Abstract | ||
| A model of plastic deformation of the shape memory alloys which describes dislocation slip at the microlevel is developed. A condition similar to the Schmid law was adopted for the determination of dislocation slip onset. A description of the interaction of plastic deformation and martensitic transformations by taking into account the densities of deformation defects is proposed. It is shown that the model can correctly describe the effect of plastic strain on the shape memory effect. The proposed model is also capable of describing the two-way shape memory effect. | ||
| Key Words | ||
| martensitic transformations; microstructural modelling; plastic deformation; shape memory alloys; TiNi; two-way shape memory | ||
| Address | ||
| (1) Fedor S. Belyaev: Laboratory of Mathematical Methods in Mechanics of Materials, Institute for Problems in Mechanical Engineering of the RAS, V.O., Bolshoj pr. 61, St. Petersburg, 199178, Russia; (2) Margarita E. Evard, Aleksandr E. Volkov: Chair of Elasticity Theory, Saint Petersburg State University, Universitetskaya Nab. 7-9, St. Petersburg, 199034, Russia. | ||