Date
2020-09-22Subject
600 Technology 660 Chemical engineering Rapid Prototyping <Fertigung>Memory-LegierungAustenitischer StahlRekristallisationElektronenstrahlschmelzenFunktioneller GradientenwerkstoffMikrostrukturMetadata
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Konferenzveröffentlichung
On the Challenges toward Realization of Functionally Graded Structures by Electron Beam Melting—Fe-Base Shape Memory Alloy and Stainless Steel
Abstract
In the present study, an iron-manganese-aluminum-nickel (Fe-Mn-Al-Ni) shape memory alloy was processed on an austenitic steel (AISI 304) build platform by electron beam melting in order to study the feasibility of realizing functionally graded structures consisting of two different materials (i.e., a functional and a structural material). Compression specimens consisting of the processed shape memory alloy and the austenitic build platform in equal parts were investigated. The microstructure was analyzed in the as-built state and after different heat treatments, focusing on the interface between both materials. Scanning electron microscopy and electron backscatter diffraction measurements were conducted to reveal the relation between processing steps and the microstructural evolution. It is shown that the microstructure after the electron beam melting process is characterized by a preferred 〈001〉 orientation with respect to the build direction and that a suitable microstructure for good pseudoelastic performance can be realized by post-processing heat treatments. Finally, incremental strain tests up to 12% compressive strain were conducted to analyze the overall mechanical performance of the specimens.
Citation
In: Shamsaei, Nima; Seifi, Mohsen (Hrsg.): Structural Integrity of Additive Manufactured Materials and Parts. ASTM International: West Conshohocken, PA 2020-09-22, S. 20-33; doi:10.1520/STP1631-EB, eisbn:978-0-8031-7709-3, isbn:978-0-8031-7708-6Citation
@inproceedings{doi:10.17170/kobra-202402139579,
author={Torrent, Christof Johannes Jaime and Bauer, André and Vollmer, Malte and Niendorf, Thomas},
title={On the Challenges toward Realization of Functionally Graded Structures by Electron Beam Melting—Fe-Base Shape Memory Alloy and Stainless Steel},
booktitle={Structural Integrity of Additive Manufactured Materials and Parts},
month={09},
year={2020}
}
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2024-02-14T16:37:56Z 2024-02-14T16:37:56Z 2020-09-22 doi:10.17170/kobra-202402139579 http://hdl.handle.net/123456789/15471 eng ASTM International Urheberrechtlich geschützt https://rightsstatements.org/page/InC/1.0/ additive manufacturing shape memory alloy austenitic steel functionalized structures secondary recrystallization 600 660 On the Challenges toward Realization of Functionally Graded Structures by Electron Beam Melting—Fe-Base Shape Memory Alloy and Stainless Steel Konferenzveröffentlichung In the present study, an iron-manganese-aluminum-nickel (Fe-Mn-Al-Ni) shape memory alloy was processed on an austenitic steel (AISI 304) build platform by electron beam melting in order to study the feasibility of realizing functionally graded structures consisting of two different materials (i.e., a functional and a structural material). Compression specimens consisting of the processed shape memory alloy and the austenitic build platform in equal parts were investigated. The microstructure was analyzed in the as-built state and after different heat treatments, focusing on the interface between both materials. Scanning electron microscopy and electron backscatter diffraction measurements were conducted to reveal the relation between processing steps and the microstructural evolution. It is shown that the microstructure after the electron beam melting process is characterized by a preferred 〈001〉 orientation with respect to the build direction and that a suitable microstructure for good pseudoelastic performance can be realized by post-processing heat treatments. Finally, incremental strain tests up to 12% compressive strain were conducted to analyze the overall mechanical performance of the specimens. open access Torrent, Christof Johannes Jaime Bauer, André Vollmer, Malte Niendorf, Thomas West Conshohocken, PA doi:10.1520/STP163120190128 Rapid Prototyping <Fertigung> Memory-Legierung Austenitischer Stahl Rekristallisation Elektronenstrahlschmelzen Funktioneller Gradientenwerkstoff Mikrostruktur publishedVersion 2020 National Harbor, Md. Structural Integrity of Additive Manufactured Materials and Parts Shamsaei, Nima Seifi, Mohsen doi:10.1520/STP1631-EB eisbn:978-0-8031-7709-3 isbn:978-0-8031-7708-6 20-33 Selected technical papers / ASTM International STP 1631 false ASTM International Symposium on the Structural Integrity of Additive Manufactured Materials and Parts, 4; ASTM Symposium on Structural Integrity of Additive Manufactured Materials and Parts, 4
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