Aufsatz
Deutsche Forschungsgemeinschaft. Grant Number: 447247560
Artikel (Publikationen im Open Access gefördert durch die UB)
Electrochemical polarization behavior and superelastic properties of a Fe–Mn–Al–Ni–Cr shape memory alloy
Abstract
The present study investigates the corrosion behavior of a Fe–Mn–Al–Ni–Cr shape memory alloy in a 5.0 wt% NaCl solution in combination with the functional properties. In a single crystalline condition, the investigated alloy shows a superior superelastic response with a maximum recovery strain of 5.2%. Furthermore, the results of the potentiodynamic polarization and impedance spectroscopy show that the addition of chromium generally improves corrosion resistance by increasing the resistance to localized corrosion. The single crystalline condition, which is characterized by an austenitic matrix and scattered martensite plates, shows an enhanced, however, still unstable passive behavior due to the formation of corrosion pits along the martensite plates.
Sponsorship
Gefördert im Rahmen des Projekts DEALDeutsche Forschungsgemeinschaft. Grant Number: 447247560
Collections
Publikationen (Fachgebiet Metallische Werkstoffe)Artikel (Publikationen im Open Access gefördert durch die UB)
Citation
@article{doi:10.17170/kobra-202303157639,
author={Frenck, Johanna-Maria and Vollmer, Malte and Niendorf, Thomas},
title={Electrochemical polarization behavior and superelastic properties of a Fe–Mn–Al–Ni–Cr shape memory alloy},
journal={Materials and Corrosion},
year={2022}
}
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0501 Text $btxt$2rdacontent
0502 Computermedien $bc$2rdacarrier
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2050 ##0##http://hdl.handle.net/123456789/14513
3000 Frenck, Johanna-Maria
3010 Vollmer, Malte
3010 Niendorf, Thomas
4000 Electrochemical polarization behavior and superelastic properties of a Fe–Mn–Al–Ni–Cr shape memory alloy / Frenck, Johanna-Maria
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4170
5550 {{Impedanzspektroskopie}}
5550 {{Memory-Legierung}}
5550 {{Elektrochemische Polarisation}}
5550 {{Lochfraßkorrosion}}
5550 {{Pseudoelastizität}}
7136 ##0##http://hdl.handle.net/123456789/14513
<resource xsi:schemaLocation="http://datacite.org/schema/kernel-2.2 http://schema.datacite.org/meta/kernel-2.2/metadata.xsd"> 2023-03-20T17:18:36Z 2023-03-20T17:18:36Z 2022-10-22 doi:10.17170/kobra-202303157639 http://hdl.handle.net/123456789/14513 Gefördert im Rahmen des Projekts DEAL Deutsche Forschungsgemeinschaft. Grant Number: 447247560 eng Namensnennung 4.0 International http://creativecommons.org/licenses/by/4.0/ electrochemical impedance spectroscopy Fe–Mn–Al–Ni–Cr iron-based shape memory alloy passive films pitting corrosion potentiodynamic polarization pseudoelasticity 660 Electrochemical polarization behavior and superelastic properties of a Fe–Mn–Al–Ni–Cr shape memory alloy Aufsatz The present study investigates the corrosion behavior of a Fe–Mn–Al–Ni–Cr shape memory alloy in a 5.0 wt% NaCl solution in combination with the functional properties. In a single crystalline condition, the investigated alloy shows a superior superelastic response with a maximum recovery strain of 5.2%. Furthermore, the results of the potentiodynamic polarization and impedance spectroscopy show that the addition of chromium generally improves corrosion resistance by increasing the resistance to localized corrosion. The single crystalline condition, which is characterized by an austenitic matrix and scattered martensite plates, shows an enhanced, however, still unstable passive behavior due to the formation of corrosion pits along the martensite plates. open access Frenck, Johanna-Maria Vollmer, Malte Niendorf, Thomas doi:10.1002/maco.202213538 Grant Number: 447247560 Impedanzspektroskopie Memory-Legierung Elektrochemische Polarisation Lochfraßkorrosion Pseudoelastizität publishedVersion eissn:1521-4176 Issue 3 Materials and Corrosion 441-451 Volume 74 false </resource>
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