Results 61 to 70 of about 15,355 (274)

Activation Method and Reuse of Waste Concrete Powder—A Review

Sustainability, 2023
With an emphasis on environmental protection and the sustainable development of resources, the reuse of waste concrete has long been a research hotspot, and the study of WCP is the key to improving the efficiency of waste concrete utilization. In this study, in which we reviewed the relevant literature at home and abroad in recent years, we first used ...
Changming Bu, Baolin Tan, Qiutong Wu, Yingying Qiao, Yi Sun, Linwen Yu, Qian Yang   +6 more
openaire   +1 more source

Understanding the Stochastic Nature of Process Parameter Development of Blown Powder Laser Beam Directed Energy Deposition Additive Manufacturing of Pure Molybdenum

Advanced Engineering Materials, EarlyView.
Identified through the use of statistical design of experiments and metallographic investigation, this study exposes the stochastic origins of intergranular cracks in blown powder laser beam directed energy deposition additive manufacturing of pure molybdenum. It further demonstrates a successful crack mitigation approach with direct correlation to the
Nathaniel J. Lies, Daniel E. Driemeyer, Aaron P. Stebner   +2 more
wiley   +1 more source

Investigating the degradation mechanisms with continual feedstock reuse of M789 in Laser Powder Bed Fusion to determine its feedstock end-of-life

Materials & Design
The long-term sustainability of Laser Powder Bed Fusion (LPBF) relies increasingly on maximising powder reutilisation across multiple build cycles, while maintaining part integrity and performance.
A. Alagesan, M. Cagirici, P. Bartolo
doaj   +1 more source

Influence of 17-4 PH stainless steel powder recycling on properties of SLM additive manufactured parts

Journal of Materials Research and Technology, 2022
Metal Additive Manufacturing (AM) processes are developing quickly. These processes have several attractive qualities, however, the quality of manufactured parts still remains a major issue that needs to be addressed if it is to become a prevalent ...
Sara Giganto, Susana Martínez-Pellitero, Joaquín Barreiro, Pablo Zapico   +3 more
doaj   +1 more source

New powder reuse schema in laser-based powder bed fusion of polymers

Waste Management
The laser-based powder bed fusion of polymers (PBF-LB/P) process often utilizes a blend of powders with varying degrees of degradation. Specifically, for polyamide 12, the traditional reuse schema involves mixing post-processed powder with virgin powder at a predetermined ratio before reintroducing it to the process.
Michał, Olejarczyk, Piotr, Gruber, Małgorzata, Gazińska, Anna, Krokos, Grzegorz, Ziółkowski, Patrycja, Szymczyk-Ziółkowska, Emilia, Grochowska, Tomasz, Kurzynowski   +7 more
openaire   +2 more sources

Reuse of 316L stainless steel towards zero-waste laser powder bed fusion [PDF]

Aiming to enhance the adoption of sustainable practices in the Italian manufacturing sector, this study investigated the application of powder reuse in laser powder bed fusion (L-PBF) processes.
D'Urso, Gianluca, Locatelli, Gabriele, Bocchi, Sara, Quarto, Mariangela   +3 more
core   +1 more source

Effect of Powder Reuse on Microstructural and Fatigue Properties of Ti-6Al-4V Fabricated via Directed Energy Deposition

, 2022
In metal additive manufacturing (AM) processes, due to the high cost of metal powder, it is common to reuse the collected powder from the build envelope for future builds.
Bian, Linkan, Doude, Haley, Mahtabi, MohammadBagher, Morgan-Barnes, Courtney, Stokes, Ryan, Yadollahi, Aref, Young, Joseph   +6 more
core   +1 more source

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

Advanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee, Son Tung Mai, Sarath Menon, Braulio Gadiel Sánchez Ortega, Ralf Drautz, Alexander Kauffmann, Gunther Eggeler, Jan Frenzel   +7 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

The Reusability of AlSi10Mg Powder in Directed Energy Deposition

Powders
The low deposition efficiency in directed energy deposition (DED) has prompted the reuse of powders that do not fuse to the builds to make additive manufacturing more sustainable.
Parnian Kiani, Alexander D. Dupuy, Kaka Ma, Julie M. Schoenung   +3 more
doaj   +1 more source