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

Journal article
(Original article)


Publication Details

Author(s): Körner C, Ramsperger M, Meid C, Bürger D, Wollgramm P, Bartsch M, Eggeler G
Journal: Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science
Publisher: Springer Boston
Publication year: 2018
Volume: 49
Journal issue: 9
Pages range: 3781-3792
ISSN: 1073-5623
Language: English


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 Authors / FAU Editors

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


External institutions
German Aerospace Center / Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR)
Ruhr-Universität Bochum (RUB)


How to cite

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.

BibTeX: 

Last updated on 2019-05-01 at 09:10