Materials Characterization of Additively Manufactured Components for Rocket Propulsion [PDF]
To advance Additive Manufacturing (AM) technologies for production of rocket propulsion components the NASA Glenn Research Center (GRC) is applying state of the art characterization techniques to interrogate microstructure and mechanical properties of AM
Carter, Robert +9 more
core +1 more source
Schematic illustration of the poly(vinyl alcohol)/chitosan/collagen blend, highlighting the main physicochemical characterization results and the biological evaluations performed in an in vivo burn model. ABSTRACT Burns are complex injuries that require effective and multifunctional therapeutic approaches.
Bruna V. Quevedo +6 more
wiley +1 more source
Gelatin derived from porcine tissue and sericin extracted from Bombyx mori cocoons are combined to form crosslinker‐free hydrogels with tunable composition, enabling extrusion‐based 3D printing and biocompatible constructs for biomedical applications. ABSTRACT Hydrogels can be processed by 3D printing to manufacture tailor made structures, broadening ...
André S. Macedo +7 more
wiley +1 more source
Process‐Informed Analysis of As‐Built Metal Additive Surface Features
This article introduces a novel method for feature‐based surface texture characterisation directly incorporating manufacturing variables into the feature extraction workflow. This marks a major step towards identifying process‐specific surface properties and their influence on part function and hence a holistic understanding of process–structure ...
Theresa Buchenau +5 more
wiley +1 more source
Spot melting sequences for complex geometries in electron beam powder bed fusion
Abstract Spot melting in electron beam powder bed fusion is a current research focus. This method exploits the ability of the electron beam to jump almost instantaneously between individual spots. This leads to an immense freedom in scan strategy design compared to line melting and opens up a wide range of ...
Tobias Kupfer +5 more
openaire +1 more source
This study investigates laser metal deposition of aluminum alloys EN AW‐7075 and EN AW‐5083, using powder blending to compensate zinc and magnesium evaporation. In situ alloying and ex situ alloying with ZnAl12 and AZ91 preserve near‐standard compositions and improve mechanical properties.
Finn Bendixen +3 more
wiley +1 more source
Systems and Methods for Designing and Fabricating Contact-Free Support Structures for Overhang Geometries of Parts in Powder-Bed Metal Additive Manufacturing [PDF]
Systems and methods are provided for designing and fabricating contact-free support structures for overhang geometries of parts fabricated using electron beam additive manufacturing.
Chou, Yuag-Shan, Cooper, Kenneth
core +1 more source
Prediction of Process Parameters for Powder Bed Fusion Using Electron Beam
The Powder Bed Fusion using Electron Beam (PBF-EB) process is a highly complex additive manufacturing process. There are a very limited number of materials that have been used successfully, which limits the applications of the process, despite its well-documented advantages over conventional manufacturing.
openaire +1 more source
Processing-Microstructure-Property Relationships in a Cu-Rich FeCrMnNiAl High-Entropy Alloy Fabricated by Laser and Electron Beam Powder Bed Fusion. [PDF]
Diebel DM, Wegener T, Hu Z, Niendorf T.
europepmc +1 more source
Time-resolved imaging of electron beam powder bed fusion using an X-ray microscope optimized for white beam radiation. [PDF]
Bidola P +12 more
europepmc +1 more source

