[HTML][HTML] Modelling of additive manufacturability of nickel-based superalloys for laser powder bed fusion

J Xu, P Kontis, RL Peng, J Moverare - Acta Materialia, 2022 - Elsevier
The additive manufacturability of nickel-based superalloys for laser powder bed fusion
(LPBF) technologies is studied by considering the in-process cracking mechanisms. The …

Towards an alloy design strategy by tuning liquid local ordering: what solidification of an Al-alloy designed for laser powder bed fusion teaches us

M Buttard, G Martin, X Bataillon, G Renou… - Additive …, 2023 - Elsevier
High-strength aluminium alloys from the 2XXX, 6XXX, and 7XXX series suffer from severe
hot cracking issues during 3D printing. Thus, there is a need to design new alloys with an …

[HTML][HTML] Influence of grain boundary precipitation and segregation on cracking of cast and wrought superalloys containing B and Zr

F Theska, R Buerstmayr, H Liu, M Lison-Pick… - Materials …, 2022 - Elsevier
Improving the hot workability of cast and wrought Ni-base superalloys is complex due to
grain boundary cracking. Mitigation approaches focus on grain boundary active …

[HTML][HTML] A new class of alumina-forming superalloy for 3D printing

JN Ghoussoub, P Klupś, WJB Dick-Cleland… - Additive …, 2022 - Elsevier
A new class of crack-resistant nickel-based superalloy containing high γ′ fraction is studied
for the laser-powder bed fusion (L-PBF) process. The effects of the (Nb+ Ta)/Al ratio is …

Effect of Zr on microstructure and hot cracking susceptibility of ZGH451 superalloy fabricated by direct energy deposition

P Wang, W Song, S Yang, J Yang, J Liang, J Li… - Journal of Alloys and …, 2023 - Elsevier
Four groups of newly developed Ni-based superalloy samples with different Zr contents
were manufactured by Direct energy deposition (DED). This study focuses on the influence …

[HTML][HTML] On the role of Zr and B addition on solidification cracking of IN738LC produced by laser powder bed fusion

K Lindgren, F Schulz, H Gruber, A Markström, E Hryha - Materialia, 2022 - Elsevier
The demand for manufacturing increasingly complex geometries for high temperature
applications drives the increasing interest into additive manufacturing of nickel-based …

[HTML][HTML] Interphase boundary segregation in IN738 manufactured via electron-beam powder bed fusion

VV Rielli, M Luo, E Farabi, N Haghdadi, S Primig - Scripta Materialia, 2024 - Elsevier
Electron-beam powder bed fusion (EPBF) has been demonstrated to enable crack-free
additive manufacturing of the traditionally non-weldable IN738 Ni-based superalloy. This is …

Interplay between solidification microsegregation and complex precipitation in a γ/γ'cobalt-based superalloy elaborated by directed energy deposition

T Froeliger, A Després, L Toualbi, D Locq… - Materials …, 2022 - Elsevier
This study examines the segregations and the precipitation appearing during the
solidification path of a Co-Ni-Al-W-Ta-Ti-Cr γ/γ'cobalt-based superalloy processed by …

The role of the strengthening phases on the HAZ liquation cracking in a cast Ni-based superalloy used in industrial gas turbines

Ł Rakoczy, M Grudzień-Rakoczy, B Rutkowski… - Archives of Civil and …, 2023 - Springer
This work presents the influence of microstructural constituents on liquation crack formation
in the cast Ni-based superalloy, René 108. The investigation was divided into three parts …

The microstructural evolution of CM247LC manufactured through laser powder bed fusion

JFS Markanday, KA Christofidou, JR Miller… - … Materials Transactions A, 2023 - Springer
Numerous challenges persist with the additive manufacturing of high γ′ containing Ni-
based superalloys such as CM247LC. Currently, significant cracking occurs during …