Results 31 to 40 of about 1,863 (256)

Microstructure and mechanical properties of cold spray additive manufactured and post heat treated high-entropy alloys with mixed CoCrFeNi and Ti powders

Journal of Materials Research and Technology, 2023
Solid-state cold spray additive manufacturing has the potential to fabricate high-strength bulk high-entropy alloys (HEAs). Through systematic experiments, this study examined the microstructure and mechanical properties of cold spray fabricated bulk ...
Xiaping Fan, Xin Chu, Yingchun Xie, Dawei Zhou, Qingxu Tian, Yang Tong, Peter K. Liaw, Shuying Chen, Fanchao Meng   +8 more
doaj   +1 more source

Enhanced geometrical control in cold spray additive manufacturing through deep neural network predictive models

Virtual and Physical Prototyping
Cold spray additive manufacturing is a deposition technique that facilitates the fabrication of large metal components with limited thermal effects, making it suitable for a wide range of industrial applications.
Roberta Falco, Masoud Jalayer, Sara Bagherifard   +2 more
doaj   +1 more source

Solid-state cold spray additive manufacturing of pure tantalum with extraordinary high-temperature mechanical properties

Journal of Materials Research and Technology, 2023
Solid-state cold spray additive manufacturing (CSAM) was used to fabricate pure tantalum (Ta) and the high-temperature mechanical and deformation behavior of this material was investigated. The pure Ta fabricated using CSAM consists of irregularly shaped
Young-Kyun Kim, Hyung-Jun Kim, Kee-Ahn Lee   +2 more
doaj   +1 more source

Investigation of Laser Ablation and Brush Pre‐Treatments for AlCu Cold Roll Bonding in Oxygen‐Free Conditions

Advanced Engineering Materials, EarlyView.
It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti, Finn‐Lennard Janthur, Selina Raumel, Sascha Jan Zimmermann, Sarah Seffer, René Gustus, Sebastian Herbst, Marc C. Wurz, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Florian Nürnberger   +11 more
wiley   +1 more source

Handbook of Establishing and Maintaining Oxygen‐Free Atmospheres

Advanced Engineering Materials, EarlyView.
This study presents a practical framework for creating oxygen‐free atmospheres at ambient pressure using silane‐doped inert gases. The results show that ultra‐low oxygen levels and strongly reduced water content can be achieved through controlled silane dosing, drying systems, and sensor monitoring.
Sascha Jan Zimmermann, René Gustus, Lienhard Wegewitz, Wolfgang Maus‐Friedrichs   +3 more
wiley   +1 more source

Effects of Process Parameters on Cold Spray Additive Manufacturing of Quasicrystalline Al₉₃Fe₃Cr₂Ti₂ Alloy

Powders, 2023
Quasicrystalline Al93Fe3Cr2Ti2 (at.%) gas-atomized powders, which exhibit a metastable composite microstructure, were used to produce coatings by cold spray additive manufacturing processing (CSAM) using different processing parameters.
Aylanna Priscila Marques de Araujo, Felipe B. Do M. Carmelo, Erlifas M. Rocha, Claudio S. Kiminami, Piter Gargarella   +4 more
doaj   +1 more source

Oxide‐Free Titanium Coatings by Wire Arc Spraying in a Silane‐Doped Inert Atmosphere

Advanced Engineering Materials, EarlyView.
A silane‐doped argon atmosphere enables the production of oxide‐free titanium coatings via twin‐wire arc spraying at ambient pressure. This innovative approach eliminates residual oxygen, creating process conditions that prevent oxidation and nitride formation.
Manuel Rodriguez Diaz, Maik Szafarska, René Gustus, Kai Möhwald, Hans Jürgen Maier   +4 more
wiley   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

Advanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source

Cold spray-friction stir hybrid additive manufacturing of 316L SS: Feasibility, microstructure, and mechanical performance

Materials & Design
Cold spray additive manufacturing of strain hardenable austenitic steels often yields poor properties in the as-fabricated state. The cold spray-friction stir additive manufacturing (CFAM) process, which combines cold spray (CS) deposition with friction ...
Srinivasan Nagarajan, Michael Carter, Todd Curtis, Grant Crawford   +3 more
doaj   +1 more source