Open Access
U Porto Journal of Engineering, volume 7, issue 2, pages 2-10
Shape memory behavior of rapidly quenched high-copper tinicu alloys
Publication type: Journal Article
Publication date: 2021-01-01
Journal:
U Porto Journal of Engineering
Quartile SCImago
Q4
Quartile WOS
—
Impact factor: —
ISSN: 21836493
General Engineering
Abstract
Rapidly quenched quasibinary TiNi–TiCu system alloys with high copper contents (above 20 at.%) exhibit excellent shape memory effect and have considerably narrower hysteresis as compared with the TiNi binary alloy, this advantage being of special importance for cyclic load applications, e.g. for microelectromechanics (MEMS). The aim of this work is to study the effect of annealing parameters and copper content on the shape memory effect in TiNiCu alloys. Thin amorphous ribbons of TiNi-TiCu alloys with copper contents of 25 to 40 at.% were produced by planar flow casting at a melt cooling rate of about 106 K/s. The alloys were crystallized by isothermal annealing with variable duration and by exposing specimens to a short (10 ms) electric pulse. Increasing the copper content to above 30 at.% considerably reduces the plasticity and shape memory effect of the alloys. However, significant reduction of annealing duration greatly improves the shape memory performance due to prevention of the formation of brittle Ti-Cu phases in the alloys structure.
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Metals
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Metals
2 publications, 100%
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Citations by publishers
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Multidisciplinary Digital Publishing Institute (MDPI)
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Multidisciplinary Digital Publishing Institute (MDPI)
2 publications, 100%
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Shelyakov A. et al. Shape memory behavior of rapidly quenched high-copper tinicu alloys // U Porto Journal of Engineering. 2021. Vol. 7. No. 2. pp. 2-10.
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Shelyakov A., Sitnikov N. M., Khabibullina I., Borodako K., Sevryukov O. Shape memory behavior of rapidly quenched high-copper tinicu alloys // U Porto Journal of Engineering. 2021. Vol. 7. No. 2. pp. 2-10.
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TY - JOUR
DO - 10.24840/2183-6493_007.002_0002
UR - https://doi.org/10.24840%2F2183-6493_007.002_0002
TI - Shape memory behavior of rapidly quenched high-copper tinicu alloys
T2 - U Porto Journal of Engineering
AU - Shelyakov, Alexander Vasiljevich
AU - Sitnikov, N. M.
AU - Khabibullina, Irina
AU - Borodako, Kirill
AU - Sevryukov, Oleg
PY - 2021
DA - 2021/01/01 00:00:00
PB - University of Porto
SP - 2-10
IS - 2
VL - 7
SN - 2183-6493
ER -
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@article{2021_Shelyakov,
author = {Alexander Vasiljevich Shelyakov and N. M. Sitnikov and Irina Khabibullina and Kirill Borodako and Oleg Sevryukov},
title = {Shape memory behavior of rapidly quenched high-copper tinicu alloys},
journal = {U Porto Journal of Engineering},
year = {2021},
volume = {7},
publisher = {University of Porto},
month = {jan},
url = {https://doi.org/10.24840%2F2183-6493_007.002_0002},
number = {2},
pages = {2--10},
doi = {10.24840/2183-6493_007.002_0002}
}
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MLA
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Shelyakov, Alexander Vasiljevich , et al. “Shape memory behavior of rapidly quenched high-copper tinicu alloys.” U Porto Journal of Engineering, vol. 7, no. 2, Jan. 2021, pp. 2-10. https://doi.org/10.24840%2F2183-6493_007.002_0002.