Solidification in metal additive manufacturing: challenges, solutions, and opportunities

S Chandra, J Radhakrishnan, S Huang, S Wei… - Progress in materials …, 2024 - Elsevier
The physics of alloy solidification during additive manufacturing (AM) in methods such as
laser powder bed fusion (LPBF), electron beam powder bed fusion (EPBF), and laser …

A state-of-the-art review on fatigue performance of powder bed fusion-built alloy 718

E Sadeghi, P Karimi, R Esmaeilizadeh, F Berto… - Progress in Materials …, 2023 - Elsevier
Abstract Alloy 718 is a Ni-Fe-based superalloy, which has been successfully adapted to
powder bed fusion (PBF) additive manufacturing because of the alloy's adaptability with …

Simultaneous enhancements of strength, ductility, and toughness in a TiB reinforced titanium matrix composite

Q Li, S Huang, Y Zhao, Y Gao, U Ramamurty - Acta Materialia, 2023 - Elsevier
In titanium matrix composites (TMCs), the enhancement in strength and specific stiffness
with the addition of ceramic reinforcements often occurs with lowered ductility and fracture …

The formation mechanism of metal-ceramic interlayer interface during laser powder bed fusion

L Yao, Z **ao, S Huang… - Virtual and Physical …, 2023 - Taylor & Francis
Experiments on Laser powder bed fusion (LPBF) of powdered Ti on Al2O3 substrate were
conducted and the interface formation was studied using a multi-material fluid dynamics …

A micropillar compression investigation into the plastic flow properties of additively manufactured alloys

SH Li, Y Zhao, J Radhakrishnan, U Ramamurty - Acta Materialia, 2022 - Elsevier
Solidification cells and a high density of dislocations are two common features of additively
manufactured (AM) alloys that are processed using techniques such as laser powder bed …

Role of the solidification cells on the yield strength of the Al-Si-Mg alloy manufactured using laser powder bed fusion: A micropillar compression study

SH Li, Y Zhao, U Ramamurty - Scripta Materialia, 2023 - Elsevier
To ascertain the role of the solidification cell structures on the mechanical performance of Al-
Si-(Mg) alloys processed using the laser powder bed fusion (LPBF) technique, micropillar …

Improved properties of additively prepared Inconel 718 alloy post-processed with a new heat treatment

S Choudhary, V Gaur - Materials Science and Engineering: A, 2024 - Elsevier
In this study, an alternative heat-treatment route has been explored to optimize the
mechanical as well as the fatigue properties of Ni-based 718 alloy fabricated using additive …

A review on isothermal rotating bending fatigue failure: Microstructural and lifetime modeling of wrought and additive manufactured alloys

A Behvar, F Berto… - Fatigue & Fracture of …, 2023 - Wiley Online Library
The cumulative effect of many incidents that are brought about by an increase in
temperature establishes an environment in which premature failure (including fatigue …

[HTML][HTML] Probabilistic defect-based modelling of fatigue strength for incomplete datasets assisted by literature data

A Tognan, E Salvati - International Journal of Fatigue, 2023 - Elsevier
Probabilistic defect-tolerant fatigue design protocols have become the leading paradigms in
structural engineering. To effectively deal with this problem, El Haddad's (EH) curves are …

Role of the γ′′ precipitation at the cell boundaries in enhancing the creep resistance of additively manufactured Inconel 718 alloy using the laser powder bed fusion …

F Liu, J Radhakrishnan, AHV Pavan… - Materials Science and …, 2024 - Elsevier
Laser powder bed fusion (LPBF) manufactured Inconel 718 superalloy (IN718) parts exhibit
inferior creep properties compared to their conventionally manufactured (CM) counterparts …