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Published in: Shape Memory and Superelasticity 1/2024

30-11-2023 | ORIGINAL RESEARCH ARTICLE

On the Impact of γ´ Precipitates on the Transformation Temperatures in Fe–Ni–Co–Al–Ti–B Shape Memory Alloy Wires

Authors: Juan Cassinerio, Maria Florencia Giordana, Eugenia Zelaya, Viktor Remich, Philipp Krooß, Jens Freudenberger, Thomas Niendorf, César E. Sobrero

Published in: Shape Memory and Superelasticity | Issue 1/2024

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Abstract

The effect of precipitation on the martensitic transformation temperatures of cold drawn Fe41–Ni28–Co17–Al11.5–Ti2.5-B0.05 (at. %) wires was studied. To promote the evolution of γ´ precipitates ageing at 600 °C, 650 °C and 700° for times varying between 1 and 24 h was performed. Variation in the size and distribution of the precipitates via ageing significantly affects the transformation temperatures as the Ni content in the matrix is altered. The different sizes and distributions of the precipitates affects the austenite finish temperature, which is around room temperature and can be modified by approximately 100 °C.
Literature
1.
go back to reference Otsuka K, Wayman CM (eds) (1998) Shape memory materials. Cambridge University Press, Cambridge Otsuka K, Wayman CM (eds) (1998) Shape memory materials. Cambridge University Press, Cambridge
10.
Metadata
Title
On the Impact of γ´ Precipitates on the Transformation Temperatures in Fe–Ni–Co–Al–Ti–B Shape Memory Alloy Wires
Authors
Juan Cassinerio
Maria Florencia Giordana
Eugenia Zelaya
Viktor Remich
Philipp Krooß
Jens Freudenberger
Thomas Niendorf
César E. Sobrero
Publication date
30-11-2023
Publisher
Springer US
Published in
Shape Memory and Superelasticity / Issue 1/2024
Print ISSN: 2199-384X
Electronic ISSN: 2199-3858
DOI
https://doi.org/10.1007/s40830-023-00470-w

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