In Situ Investigation of the Rapid Solidification Behavior of Intermetallic γ-TiAl-Based Alloys Using High-Energy X-Ray Diffraction

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In Situ Investigation of the Rapid Solidification Behavior of Intermetallic γ-TiAl-Based Alloys Using High-Energy X-Ray Diffraction. / Graf, Gloria; Rosigkeit, Jan; Krohmer, Erwin et al.
in: Advanced engineering materials, Jahrgang 23.2021, Nr. 11, 2100557 , 23.06.2021.

Publikationen: Beitrag in FachzeitschriftArtikelForschung(peer-reviewed)

Vancouver

Graf G, Rosigkeit J, Krohmer E, Staron P, Krenn R, Clemens H et al. In Situ Investigation of the Rapid Solidification Behavior of Intermetallic γ-TiAl-Based Alloys Using High-Energy X-Ray Diffraction. Advanced engineering materials. 2021 Jun 23;23.2021(11):2100557 . Epub 2021 Jun 23. doi: 10.1002/adem.202100557

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@article{6b32703325ac423f8d6637209bb7025d,
title = "In Situ Investigation of the Rapid Solidification Behavior of Intermetallic γ-TiAl-Based Alloys Using High-Energy X-Ray Diffraction",
abstract = "Representing an attractive new processing method, additive manufacturing can be used to manufacture parts made of γ-TiAl-based alloys for high-temperature applications. However, in terms of nucleation during rapid solidification and subsequent solid-state phase transformations, the process is not yet fully understood, and research is still going on. This article focuses on a setup to study solidification processes during laser melting via in situ high-energy X-ray diffraction at a synchrotron radiation source. To create conditions similar to those encountered in powder bed-based additive manufacturing processes, such as electron beam melting or selective laser melting, a thin platelet is laser-melted on its upper edge. Phase transitions are measured simultaneously via high-energy X-ray diffraction in transmission geometry. The use of a thin platelet instead of the usual powder bed precludes the unfavorable contribution of solid phases from surrounding powder particles to the diffraction signal. First results of the in situ high-energy X-ray diffraction experiment on a Ti–48Al–2Nb–2Cr (in at%) alloy prove the applicability of the used setup for an accurate tracing of phase transformations upon rapid solidification.",
author = "Gloria Graf and Jan Rosigkeit and Erwin Krohmer and Peter Staron and Raimund Krenn and Helmut Clemens and Petra Sp{\"o}rk-Erdely",
note = "Publisher Copyright: {\textcopyright} 2021 The Authors. Advanced Engineering Materials published by Wiley-VCH GmbH.",
year = "2021",
month = jun,
day = "23",
doi = "10.1002/adem.202100557",
language = "English",
volume = "23.2021",
journal = " Advanced engineering materials",
issn = "1438-1656",
publisher = "Wiley-VCH ",
number = "11",

}

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TY - JOUR

T1 - In Situ Investigation of the Rapid Solidification Behavior of Intermetallic γ-TiAl-Based Alloys Using High-Energy X-Ray Diffraction

AU - Graf, Gloria

AU - Rosigkeit, Jan

AU - Krohmer, Erwin

AU - Staron, Peter

AU - Krenn, Raimund

AU - Clemens, Helmut

AU - Spörk-Erdely, Petra

N1 - Publisher Copyright: © 2021 The Authors. Advanced Engineering Materials published by Wiley-VCH GmbH.

PY - 2021/6/23

Y1 - 2021/6/23

N2 - Representing an attractive new processing method, additive manufacturing can be used to manufacture parts made of γ-TiAl-based alloys for high-temperature applications. However, in terms of nucleation during rapid solidification and subsequent solid-state phase transformations, the process is not yet fully understood, and research is still going on. This article focuses on a setup to study solidification processes during laser melting via in situ high-energy X-ray diffraction at a synchrotron radiation source. To create conditions similar to those encountered in powder bed-based additive manufacturing processes, such as electron beam melting or selective laser melting, a thin platelet is laser-melted on its upper edge. Phase transitions are measured simultaneously via high-energy X-ray diffraction in transmission geometry. The use of a thin platelet instead of the usual powder bed precludes the unfavorable contribution of solid phases from surrounding powder particles to the diffraction signal. First results of the in situ high-energy X-ray diffraction experiment on a Ti–48Al–2Nb–2Cr (in at%) alloy prove the applicability of the used setup for an accurate tracing of phase transformations upon rapid solidification.

AB - Representing an attractive new processing method, additive manufacturing can be used to manufacture parts made of γ-TiAl-based alloys for high-temperature applications. However, in terms of nucleation during rapid solidification and subsequent solid-state phase transformations, the process is not yet fully understood, and research is still going on. This article focuses on a setup to study solidification processes during laser melting via in situ high-energy X-ray diffraction at a synchrotron radiation source. To create conditions similar to those encountered in powder bed-based additive manufacturing processes, such as electron beam melting or selective laser melting, a thin platelet is laser-melted on its upper edge. Phase transitions are measured simultaneously via high-energy X-ray diffraction in transmission geometry. The use of a thin platelet instead of the usual powder bed precludes the unfavorable contribution of solid phases from surrounding powder particles to the diffraction signal. First results of the in situ high-energy X-ray diffraction experiment on a Ti–48Al–2Nb–2Cr (in at%) alloy prove the applicability of the used setup for an accurate tracing of phase transformations upon rapid solidification.

UR - http://www.scopus.com/inward/record.url?scp=85109075075&partnerID=8YFLogxK

U2 - 10.1002/adem.202100557

DO - 10.1002/adem.202100557

M3 - Article

VL - 23.2021

JO - Advanced engineering materials

JF - Advanced engineering materials

SN - 1438-1656

IS - 11

M1 - 2100557

ER -