Results 61 to 70 of about 2,739,050 (267)

External and Internal Cracking Caused by Heat Treatment in Laser Powder Bed Fusion‐Fabricated Inconel 738LC Components

Advanced Engineering Materials, EarlyView.
Manufacturing problems such as heat treatment‐induced cracking hinder the widespread application of the laser powder bed fusion (LPBF) process to superalloys. In this study, cracks in the LPBF components of Inconel 738LC superalloy are characterized after heat treatment at various temperature ranges, revealing two distinct cracking behaviors.
Kosuke Kuwabara, Masahiro Kusano, Ayako Ikeda, Toshio Osada, Makoto Watanabe   +4 more
wiley   +1 more source

Identification of an affordable and printable metastable β Ti alloy with outstanding deformation behaviour for use in laser powder bed fusion [PDF]

Research on metastable β Ti alloys has recently shown the possibility to achieve outstanding ductility and work hardening behaviours by engineering the materials’ unique strain transformable attributes and responses to heat treatment.
McWilliams, Brandon, Hague, Richard, Simonelli, Marco, Dunstan, Matthew K., Zou, Zhiyi   +4 more
core   +1 more source

Analytical Prediction of Balling, Lack-of-Fusion and Keyholing Thresholds in Powder Bed Fusion

Applied Sciences, 2021
This paper proposes analytical modeling methods for the prediction of balling, lack-of-fusion and keyholing thresholds in the laser powder bed fusion (LPBF) additive manufacturing.
Wenjia Wang, Jinqiang Ning, Steven Y. Liang   +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

Optimization of Laser Powder Bed Fusion Processing Using a Combination of Melt Pool Modeling and Design of Experiment Approaches: Density Control

Journal of Manufacturing and Materials Processing, 2019
A simplified analytical model of the laser powder bed fusion (LPBF) process was used to develop a novel density prediction approach that can be adapted for any given powder feedstock and LPBF system.
Morgan Letenneur, Alena Kreitcberg, Vladimir Brailovski   +2 more
doaj   +1 more source

Computational analysis of the effects of geometric irregularities and post-processing steps on the mechanical behavior of additively manufactured 316L stainless steel stents.

PLoS ONE, 2020
Advances in additive manufacturing enable the production of tailored lattice structures and thus, in principle, coronary stents. This study investigates the effects of process-related irregularities, heat and surface treatment on the morphology ...
Lisa Wiesent, Ulrich Schultheiß, Philipp Lulla, Ulf Noster, Thomas Schratzenstaller, Christof Schmid, Aida Nonn, Ashley Spear   +7 more
doaj   +1 more source

Tomography of Laser Powder Bed Fusion Maraging Steel

Materials
The presence of defects in additive manufactured maraging steel is a widespread problem as its dependence on processing parameters significantly influences it. Using X-ray computed tomography, along with optical microscope data limited to 2D images, quantifies the internal porosity present on a compact tension sample typically employed in fatigue ...
Pablo M. Cerezo, Jose A. Aguilera, Antonio Garcia-Gonzalez, Pablo Lopez-Crespo   +3 more
openaire   +4 more sources

Investigating the Effect of Inclination Angle and the Influence of Scan Parameters on the Appearance and Thermal and Mechanical Properties of Filigree Tension Rods of LPBF‐Manufactured NiTi Shape‐Memory Alloys

Advanced Engineering Materials, EarlyView.
This article investigates the dependence of the properties on the manufacturing orientation in the form of the inclination angle to the build plate of LPBF‐fabricated NiTi rods with a diameter of 150–220 µm. Metallographic, chemical, thermal, and mechanical characterization show behavior under identical manufacturing conditions that ranges from ...
Sandra Herzig, Michael Werner, Christian Rotsch   +2 more
wiley   +1 more source

Formation of two distinct cellular structures in 316L stainless steel fabricated by micro-laser beam powder-bed-fusion

, 2023
Micro-laser beam powder-bed-fusion (µL-PBF) technique offers the capability to fabricate metallic components with enhanced surface quality and geometrical accuracy through refinement of processing parameters.
Xifeng Li (1492558), Yao Xiao (227567), Jun Chen (4238), Dayong An (17625636), Xinxi Liu (16846749), Huan Zhao (569316)   +5 more
core   +1 more source

A Review of a Versatile Powder Bed Fusion Technique and Selective Laser Sintering for Orthopedic and Biotechnology Applications [PDF]

Iranian Journal of Chemistry & Chemical Engineering
The field of Additive Manufacturing (AM), also known as 3D printing, has experienced rapid advancements, revolutionizing traditional approaches to object design and production. This innovative process entails the layer-by-layer deposition of materials in
Yafei Dou, Bahareh Kamyab Moghadas, Geng Ma, Chendi Du, Negin Ghanbari, Ali Mokhtarian   +5 more
doaj   +1 more source