Effects of scanning strategies on residual stress and deformation by high-power direct energy deposition: Island size and laser jump strategy between islands

J Wang, J Zhang, G Liu, L Liang, G Yang… - Journal of Manufacturing …, 2022 - Elsevier
The path-dependent residual stress and deformation are two critical defects of the parts
fabricated by direct energy deposition (DED). The optimal design of the scanning strategy is …

Unconventional precipitation and martensitic transformation behaviour of Ni-rich NiTi alloy fabricated via laser-directed energy deposition

J Kang, R Li, D Zheng, H Wu, M Wang… - Virtual and Physical …, 2023 - Taylor & Francis
In this study, we report an unconventional precipitation and martensitic transformation
behaviour of directly aged Ni-rich NiTi alloys fabricated via laser-directed energy deposition …

Additive manufacturing of oxide dispersion-strengthened CoCrNi medium-entropy alloy by in situ oxide synthesis

SH Chung, T Lee, W Jeong, BS Kong… - Journal of Alloys and …, 2023 - Elsevier
The additive manufacturing of oxide dispersion-strengthened (ODS) alloys has been
challenging due to difficulties in forming nanosized dispersoids and achieving a uniform …

[HTML][HTML] Multi-field coupling fatigue behavior of laser additively manufactured metallic materials: a review

F Liu, H Xie, W He - Journal of materials research and technology, 2023 - Elsevier
Laser additive manufacturing (AM) is an advanced green shaping technology that enables
fast and flexible fabrication or repair of high-performance metallic materials. Since the …

[HTML][HTML] Two-color thermal imaging of the melt pool in powder-blown laser-directed energy deposition

AJ Myers, G Quirarte, JL Beuth, JA Malen - Additive Manufacturing, 2023 - Elsevier
This work demonstrates an experimental technique to image melt pool temperature fields
with a commercial color camera for laser-directed energy deposition (L-DED) processes …

An overview of the process mechanisms in the laser powder directed energy deposition

G Piscopo, E Atzeni, A Saboori, A Salmi - Applied Sciences, 2022 - mdpi.com
Laser Powder Directed Energy Deposition (LP-DED) is a very powerful Additive
Manufacturing process for different applications, such as repair operations and the …

Crystallographic-orientation-dependent magnetic properties of Fe–Ni permalloy in-situ alloyed using additive manufacturing

F Haftlang, ES Kim, HS Kim - Journal of Materials Processing Technology, 2022 - Elsevier
The present study focused on improving the magnetic properties of in-situ synthesized Fe–
Ni permalloy by engineering the predominant crystallographic texture. To this end, Fe–50 …

[HTML][HTML] Microstructure and fracture toughness of a Nb–Ti–Si-based in-situ composite fabricated by laser-based directed energy deposition

Y Li, X Lin, Y Hu, W Fan, X Gao, J Yu, H Dong… - Composites Part B …, 2024 - Elsevier
Laser-based directed energy deposition (LDED), a significant integrated preparation
technique combining material design and production, has been progressively used to …

Additive manufacturing of metals and alloys to achieve heterogeneous microstructures for exceptional mechanical properties

H Chen, Y He, SS Dash, Y Zou - Materials Research Letters, 2024 - Taylor & Francis
Metals and alloys with heterogeneous microstructures exhibit an enhanced combination of
strength and ductility, compared to their counterparts with homogeneous microstructures …

Process-induced mechanical property heterogeneity along the building direction of directed energy deposited IN718 thin-walled parts

J Ning, Z Yan, L Zhu, J Zhao, Z Yang, S Wang… - International Journal of …, 2022 - Elsevier
Directed energy deposition (DED) makes fabrication of large technological components
more achievable; however, the process-induced heterogeneity of mechanical properties …