Wunderlich, Rainer and Mohr, Markus and Dong, Yue and Hecht, Ulrike and Matson, D. M. and Hyers, Robert W. and Bracker, Gwendolyn and Lee, Jonghyun and Schneider, Stephan and Xiao, Xiao and Fecht, Hans Jörg (2021) Thermophysical properties of the TiAl-2Cr-2Nb alloy in the liquid phase measured with an electromagnetic levitation device on board the International Space Station, ISS-EML. International Journal of Materials Research. Carl Hanser Verlag. doi: 10.1515/ijmr-2021-8266. ISSN 1862-5282.
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Official URL: https://www.degruyter.com/document/doi/10.1515/ijmr-2021-8266/html
Abstract
Thermophysical properties of the γ-TiAl alloy Ti-48Al-2Cr-2Ni in the liquid phase were investigated with a containerless electromagnetic processing device on board the International Space Station. Containerless processing is warranted by the high liquidus temperature Tliq = 1 776 K and the high dissolution reactivity in the liquid phase. Thermophysical properties investigated include the surface tension and viscosity, density, specific heat capacity and the electrical resistivity. The experiments were supported by magnetohydrodynamic fluid flow calculations. The Ti-48Al-2Cr-2Ni alloy could be stably processed over extended times in the stable and undercooled liquid phase and exhibited an exceptional degree of undercooling before solidification. Experimental processes and thermophysical properties so obtained will be described. The experiments demonstrate the broad experimental capabilities of the electromagnetic processing facility on the International Space Station for thermophysical investigations in the liquid phase of metallic alloys not achievable by other methods.
Item URL in elib: | https://elib.dlr.de/200314/ | ||||||||||||||||||||||||||||||||||||||||||||||||
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Document Type: | Article | ||||||||||||||||||||||||||||||||||||||||||||||||
Title: | Thermophysical properties of the TiAl-2Cr-2Nb alloy in the liquid phase measured with an electromagnetic levitation device on board the International Space Station, ISS-EML | ||||||||||||||||||||||||||||||||||||||||||||||||
Authors: |
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Date: | October 2021 | ||||||||||||||||||||||||||||||||||||||||||||||||
Journal or Publication Title: | International Journal of Materials Research | ||||||||||||||||||||||||||||||||||||||||||||||||
Refereed publication: | Yes | ||||||||||||||||||||||||||||||||||||||||||||||||
Open Access: | No | ||||||||||||||||||||||||||||||||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||||||||||||||||||||||||||||||||
In SCOPUS: | Yes | ||||||||||||||||||||||||||||||||||||||||||||||||
In ISI Web of Science: | Yes | ||||||||||||||||||||||||||||||||||||||||||||||||
DOI: | 10.1515/ijmr-2021-8266 | ||||||||||||||||||||||||||||||||||||||||||||||||
Publisher: | Carl Hanser Verlag | ||||||||||||||||||||||||||||||||||||||||||||||||
ISSN: | 1862-5282 | ||||||||||||||||||||||||||||||||||||||||||||||||
Status: | Published | ||||||||||||||||||||||||||||||||||||||||||||||||
Keywords: | Microgravity, electromagnetic levitaion, ISS, EML | ||||||||||||||||||||||||||||||||||||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||||||||||||||||||||||||||||||||||
HGF - Program: | Space | ||||||||||||||||||||||||||||||||||||||||||||||||
HGF - Program Themes: | Research under Space Conditions | ||||||||||||||||||||||||||||||||||||||||||||||||
DLR - Research area: | Raumfahrt | ||||||||||||||||||||||||||||||||||||||||||||||||
DLR - Program: | R FR - Research under Space Conditions | ||||||||||||||||||||||||||||||||||||||||||||||||
DLR - Research theme (Project): | R - Materials Research and Microgravity (MuM) | ||||||||||||||||||||||||||||||||||||||||||||||||
Location: | Köln-Porz | ||||||||||||||||||||||||||||||||||||||||||||||||
Institutes and Institutions: | Institute of Materials Physics in Space | ||||||||||||||||||||||||||||||||||||||||||||||||
Deposited By: | Schneider, Dr.rer.nat. Stephan | ||||||||||||||||||||||||||||||||||||||||||||||||
Deposited On: | 07 Dec 2023 09:15 | ||||||||||||||||||||||||||||||||||||||||||||||||
Last Modified: | 12 Dec 2023 12:23 |
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