%0 Journal Article
%A Özsoy, Andaç
%A Gaudez, Steve
%A Hearn, William A.
%A Baganis, Antonios
%A Hegedüs, Zoltán
%A Chen, Yunhui
%A Rack, Alexander
%A Logé, Roland E.
%A Van Petegem, Steven
%T Phase-Separation-Driven Cracking in Additive Manufacturing of Ni-Cu Alloy Systems
%J Additive manufacturing
%V 110
%@ 2214-7810
%C Amsterdam [u.a.]
%I Elsevier
%M PUBDB-2025-03879
%P 104950 
%D 2025
%X This study investigates the cracking mechanism in additive manufacturing of Ni-Cu multi-material combinations using operando X-ray diffraction and imaging experiments during laser powder-bed fusion (L-PBF) of CuCrZr and IN625. It is shown that liquid immiscibility between the two alloy systems stems from the interaction between Cu and the alloying elements in IN625, causing both Cu-rich and Ni-rich liquids to form with different freezing ranges. Consequently, solidification cracking takes place due to the large solidification range where the Ni-rich solid and Cu-rich liquid co-exist. Guided by thermodynamic calculations, it was identified that the highest crack susceptibility occurs between 20 and 40 wt
%F PUB:(DE-HGF)16
%9 Journal Article
%R 10.1016/j.addma.2025.104950
%U https://bib-pubdb1.desy.de/record/637653