Microstructure and Mechanical Properties of CMSX-4 Single Crystals Prepared by Additive Manufacturing

Beitrag in einer Fachzeitschrift
(Originalarbeit)


Details zur Publikation

Autor(en): Körner C, Ramsperger M, Meid C, Bürger D, Wollgramm P, Bartsch M, Eggeler G
Zeitschrift: Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science
Verlag: Springer Boston
Jahr der Veröffentlichung: 2018
Band: 49
Heftnummer: 9
Seitenbereich: 3781-3792
ISSN: 1073-5623
Sprache: Englisch


Abstract

Currently, additive manufacturing (AM) experiences significant attention
in nearly all industrial sectors. AM is already well established in
fields such as medicine or spare part production. Nevertheless,
processing of high-performance nickel-based superalloys and especially
single crystalline alloys such as CMSX-4® is challenging due
to the difficulty of intense crack formation. Selective electron beam
melting (SEBM) takes place at high process temperatures (~ 1000 °C) and
under vacuum conditions. Current work has demonstrated processing of
CMSX-4® without crack formation. In addition, by using appropriate AM scan strategies, even single crystals (SX SEBM CMSX-4®) develop directly from the powder bed. In this contribution, we investigate the mechanical properties of SX SEBM CMSX-4®
prepared by SEBM in the as-built condition and after heat treatment.
The focus is on hardness, strength, low cycle fatigue, and creep
properties. These properties are compared with conventional cast and
heat-treated material.



FAU-Autoren / FAU-Herausgeber

Körner, Carolin Prof. Dr.-Ing.
Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle)
Ramsperger, Markus
Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle)


Autor(en) der externen Einrichtung(en)
German Aerospace Center / Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR)
Ruhr-Universität Bochum (RUB)


Zitierweisen

APA:
Körner, C., Ramsperger, M., Meid, C., Bürger, D., Wollgramm, P., Bartsch, M., & Eggeler, G. (2018). Microstructure and Mechanical Properties of CMSX-4 Single Crystals Prepared by Additive Manufacturing. Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science, 49(9), 3781-3792. https://dx.doi.org/10.1007/s11661-018-4762-5

MLA:
Körner, Carolin, et al. "Microstructure and Mechanical Properties of CMSX-4 Single Crystals Prepared by Additive Manufacturing." Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science 49.9 (2018): 3781-3792.

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Zuletzt aktualisiert 2018-29-09 um 21:50