Results 81 to 90 of about 13,742 (229)

Extended continuous cooling transformation diagram for 410 stainless steel encompassing δ→γ and γ→α′ transformations determined by dilatometry

Journal of Materials Research and Technology
In this study, we use dilatometry to construct an extended Continuous Cooling Transformation (CCT) diagram for 410 stainless steel, capturing both δ→γ and γ→α′ transformations specifically for directed energy deposition (DED) additive manufacturing (AM ...
Rangasayee Kannan, Yiyu Wang, Bryan Lim, Miguel Hoffmann, Peeyush Nandwana, Yousub Lee   +5 more
doaj   +1 more source

Mems device with large out-of-plane actuation and low-resistance interconnect and methods of use [PDF]

, 2017
Source: United States Patent and Trademark Office, www.uspto.gov”The present application is directed to a MEMS device. The MEMS device includes a substrate having a first end and a second end extending along a longitudinal axis, the Substrate including ...
Beacken, Marc Jay, Bishop, David J., Chang, Jackson, Holyoak, Michael Jarret, Imboden, Matthias, Kannell, George Kenneth   +5 more
core  

Photo-induced second-order nonlinearity in stoichiometric silicon nitride waveguides [PDF]

, 2017
We report the observation of second-harmonic generation in stoichiometric silicon nitride waveguides grown via low-pressure chemical vapour deposition.
Anderson, Balakirev, Balakirev, Balakirev, Batdorf, Bauters, Billar, Boyd, Calafiore, Caterina Taballione, Chen, Chmela, Dianov, Dianov, Dianov, Epping, Epping, Epping, Fan, Fan, Fejer, Hellwig, Hunsperger, Jesse Mak, Jones, Jörn P. Epping, Kitao, Klaus-J. Boller, Krick, Levy, Luke, Marco A.G. Porcel, Margulis, Marpaung, Mayer, Mizrahi, Monat, Ning, Pavesi, Peter J.M. van der Slot, Pfeifle, Porcel, Robertson, Roeloffzen, Smit, Sokolov, Sokolov, Sokolov, Spencer, Stegeman, Stolen, Suhara, Tekin, Telle, Torres-Company, Victoria K. Schermerhorn, Vlasov, Warren, Wörhoff, Xiong, Yang, Österberg, Čáp   +62 more
core   +4 more sources

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

Additive Manufacturing Development and Hot-Fire Testing of Liquid Rocket Channel Wall Nozzles Using Blown Powder Directed Energy Deposition Inconel 625 and JBK-75 Alloys [PDF]

Additive manufacturing (AM) is being investigated at NASA and across much of the rocket propulsion industry as an alternate fabrication technique to create complex geometries for liquid engine components that offers schedule and cost saving opportunities.
Gradl, Paul R., Protz, Chris, Wammen, Tal   +2 more
core   +1 more source

Study on Arc Welding Processes for High Deposition Rate Additive Manufacturing [PDF]

, 2018
Although Additive Manufacturing implementation is rapidly growing, industrial sectors are demanding an increase of manufactured part size which most extended processes, such as Selective Laser Melting (SLM) or Laser Metal Deposition (LMD), are not able ...
Paskual, Amagoia, Suárez, Alfredo, Tabernero, Iván, Álvarez, Pedro   +3 more
core   +1 more source

Minimization of Porosity in E11018‐G Low‐Alloyed Steel Processed by Laser Powder Directed Energy Deposition

steel research international, EarlyView.
The processability of the E11018‐G by laser powder directed energy deposition (LP‐DED) is investigated. The effects of powder moisture, ambient humidity, and laser remelting on LP‐DED parts’ porosity are shown. A strong influence of the atomizing gas is observed.
Josu López‐López, Florencia Schiopetto, Itziar Ruiz‐Moraza, Iñigo Pérez‐Casero, Ernesto Urionabarrenetxea, Carmen Luno‐Bilbao, Angela Veiga, Sergio Ausejo   +7 more
wiley   +1 more source

Process parameter translation strategies for variable directed energy deposition spot size using 316L, copper, and Inconel 625

Heliyon
Directed energy deposition (DED) is a form of additive manufacturing available across a variety of laser spot diameter values, often referred to as spot sizes.
Kenton B. Fillingim, Rangasayee Kannan, Lauren Heinrich, Kyle Saleeby, Peeyush Nandwana, Thomas Feldhausen   +5 more
doaj   +1 more source

Influence of Laser Powder‐Based Directed Energy Deposition and Heat Treatment on the Thermal Conductivity of Cold‐Work Tool Steel X65MoCrWV3‐2

steel research international, EarlyView.
The studied X65MoCrWV3‐2 press hardening tool steel, produced via laser‐based direct energy deposition DED‐LB/M, exhibits a 15‐20% lower thermal conductivity than its conventionally produced equivalent when heat‐treated to operational hardness. The microstructural evolution during the employed direct tempering leads to anisotropic thermal transport, as
Julia Hahn, Christoph Escher, Sebastian Weber, Santiago Benito   +3 more
wiley   +1 more source

Pulsed laser directed energy deposition of super duplex stainless steel: engineering microstructure and improving mechanical properties [PDF]

Alloys developed by fusion-based additive manufacturing often suffer from the coarse columnar grain structure and their effect on properties. This work involves the practical application of pulsed laser in laser-based directed energy deposition (DED-LB ...
Hansen, Vidar Folke, Sayyar, Navid, Tucho, Wakshum Mekonnen   +2 more
core   +1 more source