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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

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/
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:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Wunderlich, RainerUniversität UlmUNSPECIFIEDUNSPECIFIED
Mohr, MarkusDLRUNSPECIFIEDUNSPECIFIED
Dong, YueUniversität UlmUNSPECIFIEDUNSPECIFIED
Hecht, UlrikeAccess e.V.UNSPECIFIEDUNSPECIFIED
Matson, D. M.Tufts University, Medfort, MA, USAUNSPECIFIEDUNSPECIFIED
Hyers, Robert W.University of Massachusetts, Amherst MA, USAUNSPECIFIEDUNSPECIFIED
Bracker, GwendolynDLRUNSPECIFIEDUNSPECIFIED
Lee, JonghyunIowa State UniversityUNSPECIFIEDUNSPECIFIED
Schneider, StephanDLRUNSPECIFIEDUNSPECIFIED
Xiao, XiaoDLRUNSPECIFIEDUNSPECIFIED
Fecht, Hans JörgUniversität UlmUNSPECIFIEDUNSPECIFIED
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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