% IMPORTANT: The following is UTF-8 encoded. This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.
@ARTICLE{Oezsoy:633154,
author = {Oezsoy, Andac and Hearn, William and Gaudez, Steve and
Jeswani, Rijuta and Chen, Yunhui and Rack, Alexander and
Hegedüs, Zoltan and Casati, Nicola and Logé, Roland E. and
Van Petegem, Steven},
title = {{D}econvoluting cracking mechanisms in fusion processing of
steel-copper multi-materials via {O}perando {X}-ray
characterisation},
journal = {Virtual and physical prototyping},
volume = {20},
number = {1},
issn = {1745-2759},
address = {London [u.a.]},
publisher = {Taylor and Francis},
reportid = {PUBDB-2025-02350},
pages = {e2526798},
year = {2025},
abstract = {This study investigates various cracking mechanisms and
their prevalence in fusion processing of steel-copper
multi-materials using operando X-ray diffraction and imaging
during laser powder-bed fusion (LPBF) of 316L-CuCrZr
multi-material. During this investigation, three main types
of cracking were identified: (i) solidification cracking,
(ii) metal-induced embrittlement (MIE), and (iii) liquation
cracking. All cracking types are closely related to phase
formation during processing and stem from two underlying
mechanisms. First, liquid–liquid phase separation (LLPS)
and the monotectic reaction in the 316L-CuCrZr system cause
two liquids with vastly different solidification ranges to
form, leading to solidification cracking. Second, LLPS and
the monotectic reaction uniformly distribute Cu-rich liquid
between the Fe-rich dendrites, leading to MIE and/or
liquation cracking. Conducted based on the insights gained
from the operando characterisation, further experiments
showed that cracking can be drastically reduced by avoiding
phase separation. However, the complete elimination of
cracking necessitates chemical alterations in the material
feedstock, indicating that while process adjustments can
mitigate cracking, they may fail to fully prevent it. These
findings serve as a guideline for understanding the
underlying causes of cracking in steel-copper
multi-materials, how process optimisation can effectively
mitigate cracking, and to what extent such adjustments in
processing can achieve this outcome.},
cin = {PETRA III / FS-PET-D},
ddc = {380},
cid = {$I:(DE-H253)PETRA_III-20150811$ /
I:(DE-H253)FS-PET-D-20190712},
pnm = {632 - Materials – Quantum, Complex and Functional
Materials (POF4-632) / 6G3 - PETRA III (DESY) (POF4-6G3) /
FS-Proposal: I-20240114 EC (I-20240114-EC)},
pid = {G:(DE-HGF)POF4-632 / G:(DE-HGF)POF4-6G3 /
G:(DE-H253)I-20240114-EC},
experiment = {EXP:(DE-H253)P-P21.2-20150101},
typ = {PUB:(DE-HGF)16},
doi = {10.1080/17452759.2025.2526798},
url = {https://bib-pubdb1.desy.de/record/633154},
}