Datum
2023-04-25Metadata
Zur Langanzeige
Aufsatz
Artikel (Publikationen im Open Access gefördert durch die UB)
Electron Beam Welding of Hot-Rolled Fe–Mn–Al–Ni Shape Memory Alloy Sheets
Zusammenfassung
The present study focuses on the weldability of hot-rolled Fe–Mn–Al–Ni shape memory alloy sheets by vacuum electron beam welding. Tailored process-specific welding parameters, such as preheating with electron beam or beam oscillation during welding, allowed defect-free joining with very thin weld seams and heat-affected zones. By applying a post-weld cyclic heat treatment, abnormal grain growth can be promoted across the weld seams. However, regardless of the selected welding parameters, some specimens are characterized by the formation of smaller grains within the former fusion zone. In situ incremental strain tests reveal that the former fusion zone has only a minor influence on the functional properties and is not responsible for structural failure. Thus, electron beam welding is a promising welding technology for joining Fe–Mn–Al–Ni shape memory alloys.
Zitierform
In: Shape Memory and Superelasticity Volume 9 / issue 2 (2023-04-25) eissn:2199-3858Förderhinweis
Gefördert im Rahmen des Projekts DEALSammlung(en)
Publikationen (Fachgebiet Metallische Werkstoffe)Artikel (Publikationen im Open Access gefördert durch die UB)
Zitieren
@article{doi:10.17170/kobra-202307248454,
author={Bauer, André and Wiegand, Michael and Wicke, P. and Sommer, Niklas and Vollmer, Malte and Böhm, Stefan and Niendorf, Thomas},
title={Electron Beam Welding of Hot-Rolled Fe–Mn–Al–Ni Shape Memory Alloy Sheets},
journal={Shape Memory and Superelasticity},
year={2023}
}
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2023-07-24T08:32:14Z 2023-07-24T08:32:14Z 2023-04-25 doi:10.17170/kobra-202307248454 http://hdl.handle.net/123456789/14912 Gefördert im Rahmen des Projekts DEAL eng Namensnennung 4.0 International http://creativecommons.org/licenses/by/4.0/ Fe–Mn–Al–Ni SMA Vacuum electron beam welding Preheating Abnormal grain growth Superelasticity Pseudoelasticity 600 Electron Beam Welding of Hot-Rolled Fe–Mn–Al–Ni Shape Memory Alloy Sheets Aufsatz The present study focuses on the weldability of hot-rolled Fe–Mn–Al–Ni shape memory alloy sheets by vacuum electron beam welding. Tailored process-specific welding parameters, such as preheating with electron beam or beam oscillation during welding, allowed defect-free joining with very thin weld seams and heat-affected zones. By applying a post-weld cyclic heat treatment, abnormal grain growth can be promoted across the weld seams. However, regardless of the selected welding parameters, some specimens are characterized by the formation of smaller grains within the former fusion zone. In situ incremental strain tests reveal that the former fusion zone has only a minor influence on the functional properties and is not responsible for structural failure. Thus, electron beam welding is a promising welding technology for joining Fe–Mn–Al–Ni shape memory alloys. open access Bauer, André Wiegand, Michael Wicke, P. Sommer, Niklas Vollmer, Malte Böhm, Stefan Niendorf, Thomas 364-376 doi:10.1007/s40830-023-00432-2 Elektronenstrahlschweißen Vorwärmung Kornwachstum Pseudoelastizität publishedVersion eissn:2199-3858 issue 2 Shape Memory and Superelasticity Volume 9 false
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