Results 71 to 80 of about 47,698 (292)

Research progress of K438 prepared by electron beam additive manufacturing

open access: yesFenmo yejin jishu
K438 nickel-based superalloys have the excellent heat-corrosion resistance and high-temperature oxidation resistance, which are widely used in the hot components of aero-engine turbine blades under the working condition of 900 ℃.
CUI Zhaowen   +4 more
doaj   +1 more source

Powder bed fusion of pure copper using an electron beam – achieving high conductivity by real-time process monitoring and control [PDF]

open access: yesMATEC Web of Conferences
Powder bed fusion of metals using an electron beam (PBF-EB/M) has reached market maturity. While most parts manufactured with PBF-EB/M are titanium-based, the rising interest in highly conductive pure copper is attracting attention from both industry and
Ortmann Robert   +4 more
doaj   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth   +6 more
wiley   +1 more source

A defect-resistant Co–Ni superalloy for 3D printing

open access: yesNature Communications, 2020
Additive manufacturing promises a major transformation of the production of high economic value metallic materials. Here, the authors describe a new class of 3D printable superalloys that are amenable to crack-free 3D printing via electron beam melting ...
Sean P. Murray   +11 more
doaj   +1 more source

On the Influence of Antioxidants and Recycled MgO–C Source Material on the Mechanical Properties of Carbon‐Bonded Magnesia Refractories

open access: yesAdvanced Engineering Materials, EarlyView.
The presented study focuses on the fracture behaviour of carbon‐bonded magnesia MgO–C refractories, where environmentally friendly fructose, collagen and lignin serve as temporary binding agents. The partial substitution of the source material with recycled MgO–C reduces the fracture resistance, which can be counteracted by the additional introduction ...
Marc Neumann   +6 more
wiley   +1 more source

Design of highly stabilized nanocomposite inks based on biodegradable polymer-matrix and gold nanoparticles for Inkjet Printing [PDF]

open access: yes, 2019
Nowadays there is a worldwide growing interest in the Inkjet Printing technology owing to its potentially high levels of geometrical complexity, personalization and resolution.
Aguilera Velázquez, José Raúl   +5 more
core   +1 more source

Effect of Laser Deoxidation on Adhesive‐Bonded Aluminum in an Oxygen‐Free Atmosphere

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates laser ablation of aluminum under oxygen‐free conditions. The goal is to produce oxide‐free substrates that enable improved adhesive bonding with epoxy. Optimized laser parameters (90% overlap, 300 µJ) combined with oxide‐free substrates result in the highest tensile strength of the adhesive bond.
Sandra Gerland   +5 more
wiley   +1 more source

Additive Manufacturing: A Comprehensive Review

open access: yesSensors
Additive manufacturing has revolutionized manufacturing across a spectrum of industries by enabling the production of complex geometries with unparalleled customization and reduced waste.
Longfei Zhou   +9 more
doaj   +1 more source

Manufacturing Metallic Parts with Designed Mesostructure via Three-Dimensional Printing of Metal Oxide Powder [PDF]

open access: yes, 2007
Cellular materials, metallic bodies with gaseous voids, are a promising class of materials that offer high strength accompanied by a relatively low mass.
Rosen, David W.   +1 more
core   +1 more source

Investigation of Oxygen‐Free Wetting Behavior of Aluminum on Copper via Molecular Dynamics Simulations and Experiments

open access: yesAdvanced Engineering Materials, EarlyView.
The wettability of aluminum droplets (Al) on different copper substrates (Cu), where liquid Al spreads on solid Cu surfaces to form a liquid–solid interface, is studied numerically and experimentally. The experimental and numerical results show good agreement in the fast‐spreading regime.
Shan Lyu   +8 more
wiley   +1 more source

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