Results 21 to 30 of about 2,939 (187)

Comparative insights into microstructure and magnetism of Ni-Mn-Sn Heusler alloys manufactured by electron beam and laser beam powder bed fusion

open access: yesAdditive Manufacturing Letters, 2023
Powder bed fusion (PBF) is a promising but challenging method for additive manufacturing of magnetocaloric Ni-Mn-Sn Heusler alloys, due to the material's inherent brittleness. To produce crack-free near-net-shape parts from prealloyed gas atomized 47.2Ni-
Silja-Katharina Rittinghaus   +5 more
doaj   +1 more source

Powder Bed Fusion of Multimaterials

open access: yesJournal of Manufacturing and Materials Processing, 2023
Powder bed fusion (PBF) process has been used successfully to produce 3D structures using single material properties. The current industrial demand is to use the technology to produce 3D structures of multimaterial properties.
Thywill Cephas Dzogbewu, Deon de Beer
doaj   +1 more source

In Situ CT Tensile Testing of an Additively Manufactured and Heat-Treated Metastable ß-Titanium Alloy (Ti-5Al-5Mo-5V-3Cr)

open access: yesApplied Sciences, 2021
Additive manufacturing has been considered a suitable process for developing high-performance parts of medical or aerospace industries. The electron beam powder bed fusion process, EB-PBF, is a powder bed fusion process carried out in a vacuum, in which ...
Julius Hendl   +6 more
doaj   +1 more source

Processing parameters in laser powder bed fusion metal additive manufacturing

open access: yesMaterials & Design, 2020
As metallic additive manufacturing grew in sophistication, users have requested greater control over the systems, namely the ability to fully change the process parameters.
J.P. Oliveira, A.D. LaLonde, J. Ma
doaj   +1 more source

Effects of reuse on the properties of tantalum powders and tantalum parts additively manufactured by electron beam powder bed fusion

open access: yesMaterials Research Express, 2021
The cost of additively manufactured tantalum parts can be effectively lowered by reusing or recycling tantalum powder. To evaluate the effects of reuse of the tantalum powder on the properties of tantalum parts and scaffolds, this study investigated the ...
Yu Guo   +3 more
doaj   +1 more source

Impact of the Power-Dependent Beam Diameter during Electron Beam Additive Manufacturing: A Case Study with γ-TiAl

open access: yesApplied Sciences, 2022
The development of process parameters for electron beam powder bed fusion (PBF-EB) is usually made with simple geometries and uniform scan lengths. The transfer to complex parts with various scan lengths can be achieved by adapting beam parameters such ...
Marcel Reith   +3 more
doaj   +1 more source

In situ recrystallization of pure Cu during electron beam powder bed fusion

open access: yesAdditive Manufacturing Letters
Additively manufactured parts often exhibit an anisotropic microstructure characterized by columnar grains resulting from epitaxial growth from the underlying layers in the direction of the thermal gradient, i.e. parallel to the build direction.
Alexandre Margueret   +2 more
doaj   +1 more source

Additive manufacturing technology for porous metal implant applications and triple minimal surface structures: A review

open access: yesBioactive Materials, 2019
Recently, the fabrication methods of orthopedic implants and devices have been greatly developed. Additive manufacturing technology allows the production of complex structures with bio-mimicry features, and has the potential to overcome the limitations ...
Li Yuan, Songlin Ding, Cuie Wen
doaj   +1 more source

A novel and high-efficiency dual-electron gun concurrent preheating additive manufacturing technology: suppressing thermal cracks in non-weldable IN738LC nickel-based superalloy by mitigating temperature fluctuations

open access: yesVirtual and Physical Prototyping
The process of electron beam powder bed fusion (PBF-EB) is recognised for its efficacy in preparing non-weldable nickel-based superalloys, leveraging high-temperature preheating to minimise stress-related issues.
Yang Li   +8 more
doaj   +1 more source

Tensile and Creep Properties Improvement of Ti-6Al-4V Alloy Specimens Produced by Electron Beam Powder Bed Fusion Additive Manufacturing

open access: yesMetals, 2019
Thanks to their excellent mechanical strength in combination with low density, high melting point, and good resistance to corrosion, titanium alloys are very useful in many industrial and biomedical fields. The new additive manufacturing methods, such as
Placido Aliprandi   +3 more
doaj   +1 more source

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