TY  - JOUR
AU  - Özsoy, Andaç
AU  - Gaudez, Steve
AU  - Hearn, William A.
AU  - Baganis, Antonios
AU  - Hegedüs, Zoltán
AU  - Chen, Yunhui
AU  - Rack, Alexander
AU  - Logé, Roland E.
AU  - Van Petegem, Steven
TI  - Phase-Separation-Driven Cracking in Additive Manufacturing of Ni-Cu Alloy Systems
JO  - Additive manufacturing
VL  - 110
SN  - 2214-7810
CY  - Amsterdam [u.a.]
PB  - Elsevier
M1  - PUBDB-2025-03879
SP  - 104950 
PY  - 2025
AB  - 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
LB  - PUB:(DE-HGF)16
DO  - DOI:10.1016/j.addma.2025.104950
UR  - https://bib-pubdb1.desy.de/record/637653
ER  -