TY - JOUR

T1 - In-situ observation of the phase evolution during an electromagnetic-assisted sintering experiment of an intermetallic γ -TiAl based alloy

AU - Musi, Michael

AU - Galy, Benjamin

AU - Monchoux, Jean-Philippe

AU - Couret, Alain

AU - Clemens, Helmut

AU - Mayer, Svea

N1 - Publisher Copyright: © 2021 The Authors

PY - 2022/1/1

Y1 - 2022/1/1

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=85114098842&partnerID=8YFLogxK

U2 - 10.1016/j.scriptamat.2021.114233

DO - 10.1016/j.scriptamat.2021.114233

M3 - Article

VL - 206.2022

JO - Scripta materialia

JF - Scripta materialia

SN - 1359-6462

IS - 1 January

M1 - 114233

ER -