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Körner, Carolin and Ramsperger, Markus and Meid, Carla and Bürger, Daniel and Wollgramm, Philipp and Bartsch, Marion and Eggeler, Gunther (2018) Microstructure and Mechanical Properties of CMSX-4 Single Crystals Prepared by Additive Manufacturing. Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science, 9 (49), pp. 3781-3792. Springer. doi: 10.1007/s11661-018-4762-5. ISSN 1073-5623.
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Official URL: https://link.springer.com/article/10.1007%2Fs11661-018-4762-5
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.
| Item URL in elib: | https://elib.dlr.de/122957/ | ||||||||||||||||||||||||||||||||
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| Document Type: | Article | ||||||||||||||||||||||||||||||||
| Title: | Microstructure and Mechanical Properties of CMSX-4 Single Crystals Prepared by Additive Manufacturing | ||||||||||||||||||||||||||||||||
| Authors: |
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| Date: | 10 July 2018 | ||||||||||||||||||||||||||||||||
| Journal or Publication Title: | Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science | ||||||||||||||||||||||||||||||||
| Refereed publication: | Yes | ||||||||||||||||||||||||||||||||
| Open Access: | Yes | ||||||||||||||||||||||||||||||||
| Gold Open Access: | No | ||||||||||||||||||||||||||||||||
| In SCOPUS: | Yes | ||||||||||||||||||||||||||||||||
| In ISI Web of Science: | Yes | ||||||||||||||||||||||||||||||||
| Volume: | 9 | ||||||||||||||||||||||||||||||||
| DOI: | 10.1007/s11661-018-4762-5 | ||||||||||||||||||||||||||||||||
| Page Range: | pp. 3781-3792 | ||||||||||||||||||||||||||||||||
| Publisher: | Springer | ||||||||||||||||||||||||||||||||
| Series Name: | TOPICAL COLLECTION: SUPERALLOYS AND THEIR APPLICATIONS | ||||||||||||||||||||||||||||||||
| ISSN: | 1073-5623 | ||||||||||||||||||||||||||||||||
| Status: | Published | ||||||||||||||||||||||||||||||||
| Keywords: | Additive manufacturing, single crystal, super alloy, mechanical properties, high temperature fatigue | ||||||||||||||||||||||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||||||||||||||||||
| HGF - Program: | Aeronautics | ||||||||||||||||||||||||||||||||
| HGF - Program Themes: | propulsion systems | ||||||||||||||||||||||||||||||||
| DLR - Research area: | Aeronautics | ||||||||||||||||||||||||||||||||
| DLR - Program: | L ER - Engine Research | ||||||||||||||||||||||||||||||||
| DLR - Research theme (Project): | L - Virtual Engine and Validation methods (old) | ||||||||||||||||||||||||||||||||
| Location: | Köln-Porz | ||||||||||||||||||||||||||||||||
| Institutes and Institutions: | Institute of Materials Research > Experimental and Numerical Methods | ||||||||||||||||||||||||||||||||
| Deposited By: | Bartsch, Dr.-Ing. Marion | ||||||||||||||||||||||||||||||||
| Deposited On: | 20 Nov 2018 09:00 | ||||||||||||||||||||||||||||||||
| Last Modified: | 22 Jun 2023 10:01 |
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