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Alloy Ti – 50.2 at.% Ni for Actuators: Evolution of Structure and Shape Memory Effects During Post-Deformation Annealing. Part 2. Influence of Structure and Phase Transformation Special Features on Shape Memory Effects

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Metal Science and Heat Treatment Aims and scope

The first part of the paper is devoted to regular features of microstructure formation and evolution of martensitic transformations during post-deformation annealing at 400 – 700°C. The second part presents results of a study of shape recovery characteristics reflecting their evolution as a function of the varying structural state and features of martensitic transformation during post-deformation annealing. Conditions for implementation of anomalously high characteristics of shape recovery under bending with nonisothermal loading are determined and analyzed.

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Notes

  1. Here and subsequently in the test the element content is given in atomic fractions expressed as a %.

  2. The straight line εt in Fig. 1 is provided for clarity of comparing determined parameters with the value for induced strain and lines denote elastic recovery.

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Work was performed with support of the Russian Ministry of Education and Science within the scope of state assignment (project code 0718-2020-0030).

The authors thank SPbGU aspirant A. M. Ivanov for help in performing tensile tests.

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Authors and Affiliations

  1. NITU MISiS, Moscow, Russia

    E. P. Ryklina & N. U. Abduraimova

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  1. E. P. Ryklina
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  2. N. U. Abduraimova
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Correspondence to E. P. Ryklina.

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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 5, pp. 35 – 39, May, 2021.

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Ryklina, E.P., Abduraimova, N.U. Alloy Ti – 50.2 at.% Ni for Actuators: Evolution of Structure and Shape Memory Effects During Post-Deformation Annealing. Part 2. Influence of Structure and Phase Transformation Special Features on Shape Memory Effects. Met Sci Heat Treat 63, 264–268 (2021). https://doi.org/10.1007/s11041-021-00681-x

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  • DOI: https://doi.org/10.1007/s11041-021-00681-x

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