Results 51 to 60 of about 129,828 (304)

Influence of defects on axial fatigue strength of maraging steel specimens produced by additive manufacturing

MATEC Web of Conferences, 2018
Nowadays many materials such as steels, aluminium and titanium alloys can be realised by powder bed solutions melting subsequently powder layers by means of a laser or electron beam (Laser Beam Melting – LBM and Electron Beam Melting – EBM).
Rigon Daniele, Meneghetti Giovanni, Görtler Michael, Cozzi Daniele, Waldhauser Wolfgang, Dabalà Manuele   +5 more
doaj   +1 more source

Data Mining for Mesoscopic Simulation of Electron Beam Selective Melting

Engineering, 2019
In the electron beam selective melting (EBSM) process, the quality of each deposited melt track has an effect on the properties of the manufactured component.
Ya Qian, Wentao Yan, Feng Lin
doaj   +1 more source

Numerical Alloy Development for Additive Manufacturing towards Reduced Cracking Susceptibility

Crystals, 2021
In this work, we investigated the viability of established hot cracking models for numerically based development of crack-resistant nickel-base superalloys with a high γ′ volume fraction for additive manufacturing.
Benjamin Wahlmann, Dominik Leidel, Matthias Markl, Carolin Körner   +3 more
doaj   +1 more source

Hydrogen contamination in Ge-doped SiO[sub 2] thin films prepared by helicon activated reactive evaporation [PDF]

, 2015
Germanium-doped silicon oxidethin films were deposited at low temperature by using an improved helicon plasma assisted reactive evaporation technique.
Boswell, R., Bulla, Douglas, Charles, C., Li, W. T., Love, J., Luther-Davies, B.   +5 more
core   +1 more source

Laser Metal Deposition of Aluminum Alloys 7075 and 5083 with the Addition of Volatile Alloying Elements through Powder Blending

Advanced Engineering Materials, EarlyView.
This study investigates laser metal deposition of aluminum alloys EN AW‐7075 and EN AW‐5083, using powder blending to compensate zinc and magnesium evaporation. In situ alloying and ex situ alloying with ZnAl12 and AZ91 preserve near‐standard compositions and improve mechanical properties.
Finn Bendixen, Anastasiya Toenjes, Annika Bohlen, Thomas Seefeld   +3 more
wiley   +1 more source

Effect of Electron Beam Method on Processing of Titanium Technogenic Material

Metals, 2019
This study reveals the efficiency of the electron beam processing of titanium technogenic material with a high level of impurities and the quality of the obtained metal in correlation to process parameters which are discussed.
Katia Vutova, Vania Vassileva, Vladislava Stefanova, Dinesh Amalnerkar, Takeshi Tanaka   +4 more
doaj   +1 more source

A defect-resistant Co–Ni superalloy for 3D printing

Nature Communications, 2020
Additive manufacturing promises a major transformation of the production of high economic value metallic materials. Here, the authors describe a new class of 3D printable superalloys that are amenable to crack-free 3D printing via electron beam melting ...
Sean P. Murray, Kira M. Pusch, Andrew T. Polonsky, Chris J. Torbet, Gareth G. E. Seward, Ning Zhou, Stéphane A. J. Forsik, Peeyush Nandwana, Michael M. Kirka, Ryan R. Dehoff, William E. Slye, Tresa M. Pollock   +11 more
doaj   +1 more source

Unidirectional Tape‐Based Composites from Hemp and Pineapple Leaf Fiber: Mechanical Performance in Conventional and Bio‐Based Matrices

Advanced Engineering Materials, EarlyView.
The study investigates novel semi‐finished products made of unidirectionally arranged hemp or pineapple leaf fiber‐reinforced composites produced from different matrices. The materials are analyzed in terms of their mechanical and interfacial properties and void content.
Nina Graupner, Raja Bade, Valentin Ackermann, Roja M. Baumann, Corvin Bischoff, Jona F. Ebeling, Oskar Glenz, Marlo Groh, Jonathan Groth, Finja Hiller, Tom Hirschmüller, Felix Menke, Syntcha Ngantchou Lecdou, Mika Ohler, Daniel Rafii Vardiny, Darius Richter, Dario Röper, Henrik Schumacher, Theresa Stein, Benjamin Vorbeck, Elisabeth Wermter, Kay Kölzig, Jörg Müssig   +22 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

Interaction between Molten Al‐Killed Mn–B Steel and Carbon‐Bonded MgO Refractories Based on Recyclates

Advanced Engineering Materials, EarlyView.
High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé, Lukas Neubert, Anton Yehorov, Till M. J. Stadtmüller, Christos G. Aneziris, Olena Volkova   +5 more
wiley   +1 more source