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Journal of Tashkent Institute of Railway Engineers

Abstract

For inducing form memory effects of FMEs, at least one deformation of the alloy is required. Traditionally, it is carried out at room temperature or in liquid nitrogen. The influence of the initial phase composition on different schemes of FME and OEPF guidance has been studied. The evolution of reversible and complete reversible deformation, depending on the induced deformation, has an extreme character, while the position of the maximum depends on the structural state: for an equiatomic alloy Ti-50.0 at.% Ni - range εt = 1215%; for Ti-50.7 at.% Ni.

First Page

173

Last Page

177

References

1. E.P. Ryklina. A new approach to the control of the structural-phase state and characteristics of the form reduction of titanium nickelide. Dissertation for the degree of Doctor of Technical Sciences.- M .: 2019. – 370 p.

2. K. Polyakova, E. Ryklina, S. Prokoshkin. Thermomechanical response of titanium nickelide on austenite grain/subgrain size Materials Today: Proc. (2017) 4836−4840.

3. Polyakova, K. A., Ryklina, E. P., Prokoshkin, S. D.: Effect of grain size and ageing-induced microstructure on functional characteristics of a Ti-50.7 at.% Ni alloy. Shap. Mem. Superelasticity https://doi.org/10.1007/s40830-020-00269-z 2020

4. Form memory alloys: Fundamentals, Modeling and Applications/Ed. by V. Brailovski, S. Prokoshkin, P. Terriault, F. Trochu., Canada 2003. 851 р.

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