Date
2023-05-02Metadata
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Aufsatz
Structural and superelastic properties of Fe–Mn–Al–Ni shape memory alloy sheets produced on industrial process routes by hot rolling
Abstract
In the present study the structural and functional properties of Fe–Mn–Al–Ni shape memory alloy sheets produced on an industrial process route focusing on hot rolling were investigated. The as-processed condition is characterized by a high fraction of the non-transforming γ-phase, which ensures good workability, but is associated with poor superelasticity. The alloy shows good structural properties with a yield strength of about 600 MPa, which is well above the usual transformation stress related to the martensitic phase transformation for the investigated alloy composition. After solution annealing, a microstructure showing no preferred orientation being characterized by distinctly larger grains is present. The results obtained reveal that the previous thermo-mechanical processing had no impact on the subsequent texture, however, provided a sufficient amount of driving force for abnormal grain growth. Imposed by a cyclic heat treatment, oligocrystalline structures with grain sizes above 10 mm can be achieved in the industrially processed material, which show superelastic properties similar to material processed in small batches in the laboratory.
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Gefördert durch den Publikationsfonds der Universität KasselCitation
@article{doi:10.17170/kobra-202305258112,
author={Bauer, André and Vollmer, Malte and Viebranz, Vincent Fabian and Maier, Hans Jürgen and Niendorf, Thomas},
title={Structural and superelastic properties of Fe–Mn–Al–Ni shape memory alloy sheets produced on industrial process routes by hot rolling},
journal={Journal of materials research and technology : jmr&t},
year={2023}
}
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3010 Viebranz, Vincent Fabian
3010 Maier, Hans Jürgen
3010 Niendorf, Thomas
4000 Structural and superelastic properties of Fe–Mn–Al–Ni shape memory alloy sheets produced on industrial process routes by hot rolling / Bauer, André
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5550 {{Mechanische Eigenschaft}}
5550 {{Kornwachstum}}
5550 {{Memory-Legierung}}
7136 ##0##http://hdl.handle.net/123456789/14761
<resource xsi:schemaLocation="http://datacite.org/schema/kernel-2.2 http://schema.datacite.org/meta/kernel-2.2/metadata.xsd"> 2023-05-25T13:48:44Z 2023-05-25T13:48:44Z 2023-05-02 doi:10.17170/kobra-202305258112 http://hdl.handle.net/123456789/14761 Gefördert durch den Publikationsfonds der Universität Kassel eng Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ Shape memory alloy Mechanical properties Abnormal grain growth Martensitic phase transformation FeMnAlNi Industrial process route 620 Structural and superelastic properties of Fe–Mn–Al–Ni shape memory alloy sheets produced on industrial process routes by hot rolling Aufsatz In the present study the structural and functional properties of Fe–Mn–Al–Ni shape memory alloy sheets produced on an industrial process route focusing on hot rolling were investigated. The as-processed condition is characterized by a high fraction of the non-transforming γ-phase, which ensures good workability, but is associated with poor superelasticity. The alloy shows good structural properties with a yield strength of about 600 MPa, which is well above the usual transformation stress related to the martensitic phase transformation for the investigated alloy composition. After solution annealing, a microstructure showing no preferred orientation being characterized by distinctly larger grains is present. The results obtained reveal that the previous thermo-mechanical processing had no impact on the subsequent texture, however, provided a sufficient amount of driving force for abnormal grain growth. Imposed by a cyclic heat treatment, oligocrystalline structures with grain sizes above 10 mm can be achieved in the industrially processed material, which show superelastic properties similar to material processed in small batches in the laboratory. open access Bauer, André Vollmer, Malte Viebranz, Vincent Fabian Maier, Hans Jürgen Niendorf, Thomas Seiten 6982-6991 doi:10.1016/j.jmrt.2023.04.260 Mechanische Eigenschaft Kornwachstum Memory-Legierung publishedVersion eissn:2238-7854 Journal of materials research and technology : jmr&t Volume 24 false </resource>
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