Results 41 to 50 of about 3,216 (204)

Achieving fully-equiaxed fine β-grains in titanium alloy produced by additive manufacturing

Materials Research Letters, 2023
The achievement of fine equiaxed β grain with conventional intragranular (α-Ti+β-Ti) microstructure in additive manufacturing titanium alloy remains a big challenge.
Aitang Xue, Xin Lin, Lilin Wang, Xufei Lu, Lukai Yuan, Hanlin Ding, Weidong Huang   +6 more
doaj   +1 more source

Extrusion‐Based Additive Manufacturing of Advanced Ceramics: Strengthening Mechanisms and Process Optimization Review

Advanced Engineering Materials, EarlyView.
This review comprehensively evaluates extrusion‐based additive manufacturing for advanced ceramics, detailing feedstock options and key process parameters. By critically addressing defect mechanisms like porosity and cracking, the work highlights optimization strategies through machine learning and advanced postprocessing.
Meisam Bakhtiari, Mohammad Hadi Sheikh‐Ansari, Avinash Borgaonkar, Mehran Dadkhah, Abdollah Saboori   +4 more
wiley   +1 more source

Knowledge-based bi-directional thermal variable modelling for directed energy deposition additive manufacturing (DED-AM) [PDF]

This dataset is used as the machine learning modelling training dataset in the paper- Knowledge-based bi-directional thermal variable modelling for directed energy deposition additive manufacturing (DED-AM). 
Jian Qin (7901966), Pradeeptta Taraphdar (11587849), Jialuo Ding (2596228), Yongle Sun (8458776), Stewart Williams (2595832)   +4 more
core   +1 more source

Bead shape control using multi-energy source (mes) for wire-based directed energy deposition (ded) process. [PDF]

, 2021
Williams, Stewart W. - Associate SupervisorIndependent control of layer width and height is essential to achieve a simultaneous high build rate with precision net shape and thermal control independent from deposition shape in the wire-based directed ...
Chen, Guangyu
core   +1 more source

Utilisation of artificial neural networks to rationalise processing windows in directed energy deposition applications

Materials & Design, 2021
The application of Directed Energy Deposition (DED) when using new materials or new instruments, requires significant empirical testing to define a suitable or optimum process operation window.
D.R. Feenstra, A. Molotnikov, N. Birbilis   +2 more
doaj   +1 more source

Microstructure Modification of Additively Manufactured Mo–9Si–8B by Annealing and Its Effects on High‐Temperature Mechanical Properties

Advanced Engineering Materials, EarlyView.
Postbuild annealing systematically modifies the phase fractions and morphology of EB‐PBF processed Mo–9Si–8B. Quantitative microstructure–property correlations reveal how controlled phase evolution enhances high‐temperature compressive strength and creep resistance.
Christopher Schmidt, Yong Chen, Georg Hasemann, Benjamin Wahlmann, Carolin Körner, Manja Krüger   +5 more
wiley   +1 more source

Effect of Heat Treatment on the Microstructure and Hardness of Ni-Based Alloy 718 in a Variable Thickness Geometry Deposited by Powder Fed Directed Energy Deposition

Metals, 2022
Feature addition to existing parts is a trending application for Directed Energy Deposition (DED) and can be used to add complex geometry features to basic forged geometries with the aim to reduce and simplify the number of processing steps as machining ...
Pedro Ramiro, Haize Galarraga, Anabel Pérez-Checa, Mikel Ortiz, Amaia Alberdi, Trunal Bhujangrao, Elena Morales, Eneko Ukar   +7 more
doaj   +1 more source

Graphene Quantum Dot‐Induced Microstrain for Framework Stabilization of High‐Entropy Prussian Blue Analog in High‐Current Alkaline Hydrogen Evolution Reaction

Advanced Functional Materials, EarlyView.
The intrinsic distortion‐rich lattice of HEPBA with GQD‐enabled microstrain engineering establishes a mechanistic route toward high‐performance alkaline hydrogen evolution reaction. HEPBA inherently feature heterogeneous local coordination environments arising from multimetal incorporation, while properly introducing GQD during coprecipitation ...
Mia Rinawati, Yu‐Ru Liu, Wei‐Hsiang Huang, Kuan‐Yu Lin, Ching‐Ju Ho, Ling‐Yu Chang, Karel Roubik, Ni Luh Wulan Septiani, Ahmad Nuruddin, Wei‐Nien Su, Min‐Hsin Yeh   +10 more
wiley   +1 more source

Directed Energy Deposition of Metal Alloys

Metals
Directed energy deposition (DED) stands as an advancement in material utilization, facilitating the production of highly precise near-net shape components using wire and powders [...]
Joel Andersson
doaj   +1 more source

Experimental Characterization of AISI P21 Tool Steel/Hexagonal Boron Nitride Composites Via Directed Energy Deposition [PDF]

Archives of Metallurgy and Materials, 2016
Directed energy deposition (DED) is a metal additive manufacturing (AM) process where material is deposited layer by layer using a focused energy source.
Pil-Ho Lee, Min-Kyo Jung, Joon Phil Choi, Yongrae Kim, Taeho Ha   +4 more
doaj   +1 more source