Results 91 to 100 of about 4,122,240 (226)

Tribological Behavior of Additively Manufactured Dual‐Material Polymer Composites

Polymer Composites, EarlyView.
Layered architecture, tribological performance, and wear mechanisms of additively manufactured dual‐material hybrid polymer composites. ABSTRACT This study presents a novel material design approach for wear‐resistant sandwich‐structured hybrid composites fabricated using dual‐nozzle fused deposition modeling (FDM). By co‐printing commercially available
Zhiwang Li, Hang Dong, Jinqiao Liu, Li Chang   +3 more
wiley   +1 more source

Tailoring Laser Powder Bed Fusion and Post‐Processing Parameters for JIS SKD61 Tool Steels: Surface Roughness, Microstructure, and Mechanical Properties

steel research international, EarlyView.
Laser powder bed fusion of JIS SKD61 tool steel is systematically optimized using a Taguchi design and ANOVA. Hatch spacing and layer thickness are identified as dominant parameters controlling surface roughness and tensile strength. Subsequent tempering at 600°C improves microstructural stability and mechanical performance, enabling high‐density SKD61
Masrurotin Masrurotin, Andi Ard Maidhah, Maziar Ramezani, Wojciech Macek, Cho‐Pei Jiang   +4 more
wiley   +1 more source

Small- to Large-Scale Electron Beam Powder Bed Fusion of Functionally Graded Steels

Journal of Manufacturing and Materials Processing
The ability to control process parameters over time and build space in electron beam powder bed fusion (PBF-EB) opens up unprecedented opportunities to tailor the process and use materials of a different nature in the same build.
Carlos Botero, William Sjöström, Emilio Jimenez-Pique, Andrey Koptyug, Lars-Erik Rännar   +4 more
doaj   +1 more source

Tailored Hardening and Isothermal Bainitizing of Additively Manufactured Nitrogen‐Enhanced Martensitic Chromium Steel

steel research international, EarlyView.
Tailored heat treatments transform additively manufactured high‐nitrogen martensitic Cr steel from austenitic as‐built condition to high‐hardness states. Isothermal bainitizing at 250°C generates an ultrafine nanostructure and achieves higher hardness than conventional hardening and tempering, highlighting a promising postprocessing route for laser ...
Philip König, Sebastian Weber, Jonathan Lentz   +2 more
wiley   +1 more source

Spot Melting Strategy for Contour Melting in Electron Beam Powder Bed Fusion

Journal of Manufacturing and Materials Processing
Spot melting is an emerging alternative to traditional line melting in electron beam powder bed fusion, dividing a layer into thousands of individual spots.
Tobias Kupfer, Lukas Spano, Sebastian Pohl, Carolin Körner, Matthias Markl   +4 more
doaj   +1 more source

Experimental Investigation of Electrical Parameter Effects in Wire Arc Atomization of 316L Stainless Steel Powders for Additive Manufacturing

steel research international, EarlyView.
This article presents wire arc atomization of 316L for the production of metallic powders used in additive manufacturing, with a systematic analysis of the influence of arc parameters on particle size. Through the application of dry sieving, scanning electron microscopy, and shape analysis, it is demonstrated that this technique is well‐suited for ...
Robin Grunert, Stefan Brumm, Sebastian Weis   +2 more
wiley   +1 more source

Comprehensive pore defect analysis for electron beam-powder bed fusion of Ti48Al2Cr2Nb

Advances in Industrial and Manufacturing Engineering
The process-microstructure relationship of gamma-titanium aluminide (Ti-48Al-2Cr-2Nb) parts fabricated via electron beam-powder bed fusion (PBF-EB) process was investigated.
Tomisin Ayeni, Paria Karimi, Mohsen K. Keshavarz, Esmaeil Sadeghi, Mahdi Habibnejad-korayem, Mihaela Vlasea   +5 more
doaj   +1 more source

Microstructure of TiAl Capsules Processed by Electron Beam Powder Bed Fusion Followed by Post-Hot Isostatic Pressing. [PDF]

Materials (Basel), 2023
Bakhshi Farkoush H, Marchese G, Bassini E, Aversa A, Biamino S.   +4 more
europepmc   +1 more source

Multi‐Scale Mechanical Behavior of Additive‐Manufactured 316L Stainless Steel Processed by Severe Plastic Deformation

steel research international, EarlyView.
The multi‐scale mechanical behavior of additive‐manufactured 316L stainless steel processed by directed energy deposition and high‐pressure torsion is explored. The influence of torsional strain on strength and microstructural evolution is revealed, indicating progressive grain refinement in the ultrafine regime, reaching strength levels nearing 1800 ...
M. Farhan Raza, Guney Guven Yapici
wiley   +1 more source

Crystallographic Texture and Phase Transformation in Titanium Alloys Fabricated via Powder Bed Fusion Processes: A Comprehensive Review

Metals
Additive manufacturing (AM) of titanium alloys enables the production of complex, high-performance components, but the steep thermal gradients and rapid solidification involved make it challenging to control crystallographic texture and phase evolution ...
Rajesh Kannan Arasappan, Hafiz Muhammad Rehan Tariq, Ha-Seong Baek, Minki Kim, Tea-Sung Jun   +4 more
doaj   +1 more source