Reference : New insights into the origin of fine equiaxed microstructures in additively manufactu...
Scientific journals : Article
Engineering, computing & technology : Materials science & engineering
http://hdl.handle.net/10993/48408
New insights into the origin of fine equiaxed microstructures in additively manufactured Inconel 718
English
Cazic, Ivan mailto [University of Luxembourg > Faculty of Science, Technology and Medecine (FSTM) > >]
Zollinger, Julien mailto [Université de Lorraine > Institut Jean Lamour > 302 > Prof. HDR]
Matthieu, Sandrine []
El Kandaoui, Maxime []
Plapper, Peter mailto [University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE) >]
Appolaire, Benoit mailto [Université de Lorraine > Institut Jean Lamour > 303 > Prof. HDR]
1-Jan-2021
Scripta Materialia
Elsevier
Yes (verified by ORBilu)
1359-6462
Oxford
United Kingdom
[en] Icosahedral Short-Range Orde ; Microstructure ; Additive Manufacturing
[en] Fine equiaxed grain regions are frequently observed in additively manufactured Inconel 718 alloy. Based on a grain-to-grain orientation analysis using EBSD, many assemblies of neighboring grains in these regions have been found to display multiple-twins orientation relationships sharing common 〈110〉directions and exhibiting 5-fold symmetry. This is an experimental proof that the grain refinement observed in inconel 718 is due to Icosahedral Short-Range Order (ISRO) mediated nucleation mechanism. This is the first report of ISRO-mediated nucleation of fcc nickel which widens the perspectives on the microstructures control in additive manufacturing of Ni-based superalloys.
FAFil
Researchers ; Students
http://hdl.handle.net/10993/48408
10.1016/j.scriptamat.2021.113740

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