Results 131 to 140 of about 18,527 (244)

Performance of High-Layer-Thickness Ti6Al4V Fabricated by Electron Beam Powder Bed Fusion under Different Accelerating Voltage Values. [PDF]

Materials (Basel), 2022
Li H, Liang X, Li Y, Lin F.
europepmc   +1 more source

Additive Manufacturing of Hot‐Work Tool Steel by In Situ Alloying Using Laser Powder Bed Fusion and Directed Energy Deposition—Strategies to Improve Chemical Homogeneity

steel research international, EarlyView.
To support future alloy development a powder mixture is processed by laser additive manufacturing. The powder mixture containing Mo‐ and W‐rich tracers is processed by powder bed fusion using single and double laser exposure and by directed energy deposition which provides drastically enlarged melt pools.
Felix Großwendt, Sebastian Weber, Jonathan Lentz   +2 more
wiley   +1 more source

Cyclic Crack Growth in Chemically Tailored Isotropic Austenitic Steel Processed by Electron Beam Powder Bed Fusion. [PDF]

Materials (Basel), 2021
Droste M, Wagner R, Günther J, Burkhardt C, Henkel S, Niendorf T, Biermann H.   +6 more
europepmc   +1 more source

HWTS 50 Tool Steel Tailored for Laser Powder Bed Fusion: Sliding Wear of Bare Surfaces and Nitriding Response in Comparison with 18Ni300 and AISI H13

steel research international, EarlyView.
This work investigates the wear resistance and nitriding behavior of PBF‐LB/M‐processed Osprey HWTS 50, a lean hot work tool steel. Three heat treatment conditions are compared to conventional wrought H13, H11, and PBF‐LB/M 18Ni300. The study highlights HWTS 50's enhanced nitrogen diffusion, deeper nitriding hardness depth, and comparable or improved ...
Jonathan Hann, Giorgia Lupi, Sylvain Dossin, Riccardo Casati, Mandanà Moshiri, Arne Röttger, Faraz Deirmina   +6 more
wiley   +1 more source

A thermo-mechanical model for hot cracking susceptibility in electron beam powder bed fusion of Ni-base superalloys

Materials & Design
Hot cracking is a major challenge in the additive manufacturing of Ni-base superalloys. Most cracking indicators only consider the alloy composition and its effects on solidification behavior, strength, and ductility.
Benjamin Wahlmann, Matthias Markl, Carolin Körner   +2 more
doaj   +1 more source

Material Characterisation and Computational Thermal Modelling of Electron Beam Powder Bed Fusion Additive Manufacturing of Ti2448 Titanium Alloy. [PDF]

Materials (Basel), 2021
Wang Q, Zhang W, Li S, Tong M, Hou W, Wang H, Hao Y, Harrison NM, Yang R.   +8 more
europepmc   +1 more source

A new approach of preheating and powder sintering in electron beam powder bed fusion

The International Journal of Advanced Manufacturing Technology
AbstractPreheating is an essential process step in electron beam powder bed fusion. It has the purpose of establishing a sintered powder bed and maintaining an elevated temperature. The sintered powder bed reduces the risk of smoke and in combination with the elevated temperature improves the processability.
Böhm, Jonas, Breuning, Christoph, Markl, Matthias, Körner, Carolin   +3 more
openaire   +2 more sources

Fatigue Strength in Additive Toolmaking: A Study of Metal Binder Jetting and Electron Beam Melting for Processing Carbide‐Rich Cold‐Work Tool Steels

steel research international, EarlyView.
Focusing on the critical tap hole region of the blast furnace, this work examines binder characteristics, prepares tap hole clay with different formulations, and evaluates their physical properties. The findings confirm the advantages of composite binders and offer a new binder option for tap hole clay.
Frederik Tegeder, Lennart Mirko Scholl, Sandra Wieland, Christian Weck, Marie Franke‐Jurisch, Alexander Bezold, Thomas Weißgärber, Christoph Broeckmann   +7 more
wiley   +1 more source

Data related to the effect of specimen geometry and orientation on tensile properties of Ti-6Al-4V manufactured by electron beam powder bed fusion. [PDF]

Data Brief, 2021
Shanbhag G, Wheat E, Moylan S, Vlasea M.
europepmc   +1 more source

In Situ Alloying of H13 Tool Steel With TiC via PBF‐LB/M

steel research international, EarlyView.
H13 tool steel is in situ alloyed with titanium carbides (TiC) in amounts up to 30 wt.%. This approach offers the advantage that the carbides melt only partially during processing, preventing excessive carbon enrichment of the steel matrix. The resulting microstructure consists of coarse, undissolved and fine, reprecipitated carbides, leading to grain ...
Oliver Bürgi, Anke Kaletsch, Christoph Broeckmann   +2 more
wiley   +1 more source