In-situ observation of the phase evolution during an electromagnetic-assisted sintering experiment of an intermetallic γ -TiAl based alloy

Michael Musi, Benjamin Galy, Jean-Philippe Monchoux, Alain Couret, Helmut Clemens, Svea Mayer

Publikation: Beitrag in FachzeitschriftArtikelForschungBegutachtung


Electromagnetic-assisted sintering offers the possibility for a time-efficient densification of intermetallic γ-TiAl based powders. Since the microstructure of the densified material and, thus, its mechanical properties can be controlled by the imposed temperature profile, the kinetics and transformations of the occurring phases are of particular interest. The present study describes a diffraction setup for the in-situ observation of the phase evolution by high-energy X-ray diffraction during an electromagnetic-assisted sintering process using induction heating. Starting from Ti-46.3Al-2.2W-0.2B powder (in at.%), this experiment grants time-resolved insights into the non-equilibrium and equilibrium phase transformations during this powder consolidation process for the first time. The microstructural accordance of the electromagnetic-assisted sintered specimen with spark plasma sintered material densified at the same dwell temperature highlights the transferability of both techniques and allows an allocation of the determined phase transformation data to the spark plasma sintering technology.

FachzeitschriftScripta materialia
Ausgabenummer1 January
Frühes Online-Datum2 Sept. 2021
PublikationsstatusVeröffentlicht - 1 Jan. 2022

Bibliographische Notiz

Funding Information:
This research was funded in part by the Austrian Science Fund (FWF) [Project Number I 3932-N36]. For the purpose of open access, the author has applied a CC BY public copyright licence to any Author Accepted Manuscript version arising from this submission. The support of the DESY management and photon science user office is gratefully acknowledged. We appreciate the commitment of the Helmholtz-Zentrum Hereon beamline staff, who contributed greatly to the success of the experiments performed.

Publisher Copyright:
© 2021 The Authors

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