TY - JOUR
T1 - Microstructures in arc-welded Al10Co25Cr8Fe15Ni36Ti6 and Al10.87Co21.74Cr21.74Cu2.17Fe21.74Ni21.74 multi-principal element alloys
T2 - Comparison between experimental data and thermodynamic predictions
AU - Shen, Jiajia
AU - Martin, Alexander C.
AU - Schell, Norbert
AU - Fink, Carolin
AU - Oliveira, J. P.
N1 - Funding Information:
JPO and JS acknowledge Fundação para a Ciência e a Tecnologia (FCT - MCTES) for its financial support via the project UID/00667/2020 (UNIDEMI). JS acknowledges the China Scholarship Council for funding the Ph.D. grant (CSC NO. 201808320394). JPO acknowledges funding by national funds from FCT - Fundação para a Ciência e a Tecnologia, I.P. in the scope of the projects LA/P/0037/2020, UIDP/50025/2020 and UIDB/50025/2020 of the Associate Laboratory Institute of Nanostructures, Nanomodelling and Nanofabrication – i3N. The authors acknowledge DESY (Hamburg, Germany), a member of the Helmholtz Association HGF, for the provision of experimental facilities. Beamtime was allocated for proposal I-20210899 EC. The research leading to this result has been supported by the project CALIPSOplus under the Grant Agreement 730872 from the EU Framework Programme for Research and Innovation HORIZON 2020. CF and ACM gratefully acknowledge partial financial support for this research by the Institute of Materials Research (IMR) at The Ohio State University under a 2017 Exploratory Materials Research Grant, and by the American Welding Society (AWS) under an AWS Graduate Research Fellowship Grant. Electron microscopy was performed at the Center for Electron Microscopy and Analysis (CEMAS) at The Ohio State University.
Funding Information:
JPO and JS acknowledge Fundação para a Ciência e a Tecnologia (FCT - MCTES) for its financial support via the project UID/00667/2020 (UNIDEMI). JS acknowledges the China Scholarship Council for funding the Ph.D. grant (CSC NO. 201808320394 ). JPO acknowledges funding by national funds from FCT - Fundação para a Ciência e a Tecnologia, I.P., in the scope of the projects LA/P/0037/2020, UIDP/50025/2020 and UIDB/50025/2020 of the Associate Laboratory Institute of Nanostructures, Nanomodelling and Nanofabrication – i3N. The authors acknowledge DESY (Hamburg, Germany), a member of the Helmholtz Association HGF, for the provision of experimental facilities. Beamtime was allocated for proposal I-20210899 EC. The research leading to this result has been supported by the project CALIPSOplus under the Grant Agreement 730872 from the EU Framework Programme for Research and Innovation HORIZON 2020. CF and ACM gratefully acknowledge partial financial support for this research by the Institute of Materials Research (IMR) at The Ohio State University under a 2017 Exploratory Materials Research Grant, and by the American Welding Society (AWS) under an AWS Graduate Research Fellowship Grant. Electron microscopy was performed at the Center for Electron Microscopy and Analysis (CEMAS) at The Ohio State University.
Publisher Copyright:
© 2022 The Authors
PY - 2023/3
Y1 - 2023/3
N2 - The development of multi-principal element alloys is currently on the rise. While there is significant fundamental work being performed to understand microstructure-property relationships, the processability of these novel alloys is yet incipient. In this work, the microstructure evolution in two arc-welded multi-principal element alloys, Al10Co25Cr8Fe15Ni36Ti6 and Al10.87Co21.74Cr21.74Cu2.17Fe21.74Ni21.74, was evaluated by electron microscopy and high energy synchrotron X-ray diffraction coupled with thermodynamic calculations. By correlating microhardness maps across the welds to results from microstructure characterization, it was possible to identify the strengthening phases across the welded materials, which can aid in fine tuning the alloy microstructure to achieve targeted strengths. Moreover, a comparison between the thermodynamically predicted microstructure evolution and that present in the welded joints was performed, highlighting the difficulty of such predictions in complex, scarcely studied multi-principal element systems.
AB - The development of multi-principal element alloys is currently on the rise. While there is significant fundamental work being performed to understand microstructure-property relationships, the processability of these novel alloys is yet incipient. In this work, the microstructure evolution in two arc-welded multi-principal element alloys, Al10Co25Cr8Fe15Ni36Ti6 and Al10.87Co21.74Cr21.74Cu2.17Fe21.74Ni21.74, was evaluated by electron microscopy and high energy synchrotron X-ray diffraction coupled with thermodynamic calculations. By correlating microhardness maps across the welds to results from microstructure characterization, it was possible to identify the strengthening phases across the welded materials, which can aid in fine tuning the alloy microstructure to achieve targeted strengths. Moreover, a comparison between the thermodynamically predicted microstructure evolution and that present in the welded joints was performed, highlighting the difficulty of such predictions in complex, scarcely studied multi-principal element systems.
KW - Electron microscopy
KW - High entropy alloys
KW - Synchrotron X-ray diffraction
KW - Thermodynamic calculations
UR - http://www.scopus.com/inward/record.url?scp=85142835963&partnerID=8YFLogxK
U2 - 10.1016/j.mtcomm.2022.104784
DO - 10.1016/j.mtcomm.2022.104784
M3 - Article
AN - SCOPUS:85142835963
SN - 2352-4928
VL - 34
JO - Materials Today Communications
JF - Materials Today Communications
M1 - 104784
ER -