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Thermophysical Properties of an Fe_(57.75)Ni_(19.25)Mo₁₀C₅B₈ Glass‐Forming Alloy Measured in Microgravity

Mohr, Markus and Hofmann, Douglas C. and Fecht, Hans-Jörg (2021) Thermophysical Properties of an Fe_(57.75)Ni_(19.25)Mo₁₀C₅B₈ Glass‐Forming Alloy Measured in Microgravity. Advanced Engineering Materials, 23 (3). Art. No. 2001143. ISSN 1438-1656. doi:10.1002/adem.202001143.

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Iron‐based metallic glasses are among the lowest‐cost form of amorphous metals and have numerous potential applications, such as wear‐resistant coatings, cutting tools, and gears. There is an increased interest for using this novel alloys as protective coatings and to produce structural elements by additive manufacturing. If an accelerated process development is desired, computer‐based process simulations are nowadays a vital tool. As a consequence, high‐quality measurements of the thermophysical properties in the solid and liquid phases are essential for developing numerical simulation models and suitable processing parameters. Due to the high melt reactivity of liquid metals at high temperatures, measurements using conventional containers are challenging, hence containerless methods have to be used. Herein, the thermophysical properties of an Fe‐based metallic glass‐former have been measured in the liquid phase using the electromagnetic levitator ISS‐EML on‐board the International Space Station (ISS).

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Mohr, Markus0000-0002-2395-7169
Alternate Title:Thermophysical Properties of an Fe57.75Ni19.25Mo10C5B8 Glass‐Forming Alloy Measured in Microgravity
Additional Information:© 2020 The Authors. Advanced Engineering Materials published by Wiley‐VCH GmbH. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. Issue Online: 23 March 2021; Version of Record online: 20 November 2020; Manuscript revised: 26 October 2020; Manuscript received: 23 September 2020. The authors acknowledge the access to the ISS‐EML, which is a joint undertaking of the European Space Agency (ESA) and the DLR Space Administration. The reported work was conducted in the framework of the ESA MAP project ThermoProp (AO‐099‐022). We further acknowledge funding from the DLR Space Administration with funds provided by the Federal Ministry for Economic Affairs and Energy (BMWi) under Grant No. 50WM1759. DCH acknowledges support from NASA's Exploration Systems Mission Directorate under Contract no. NNH10ZTT001N. Part of this work was done at the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Aerospace Administration. All authors are grateful to Dr. Rainer Wunderlich, Ulm University, and Prof. Livio Battezzati, Universita di Torino, for fruitful discussions and technical support. The authors declare no conflict of interest.
Funding AgencyGrant Number
European Space AgencyAO-099-022
Deutsches Zentrum für Luft- und Raumfahrt (DLR)UNSPECIFIED
Bundesministerium für Wirtschaft und Energie (BMWi)50WM1759
Subject Keywords:iron-based metallic glasses; specific heat; surface tension; thermal conductivity; total hemispherical emissivity; viscosity
Issue or Number:3
Record Number:CaltechAUTHORS:20201123-123516637
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Official Citation:Mohr, M., Hofmann, D.C. and Fecht, H. (2021), Thermophysical Properties of an Fe57.75Ni19.25Mo10C5B8 Glass‐Forming Alloy Measured in Microgravity. Adv. Eng. Mater., 23: 2001143.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:106784
Deposited By: Tony Diaz
Deposited On:24 Nov 2020 00:04
Last Modified:01 Apr 2021 15:30

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