Results 121 to 130 of about 13,742 (229)

Superior strength-ductility synergy of wire-arc directed energy deposited Mg-Al-Si alloys mediated by sub-rapid solidification

Journal of Magnesium and Alloys
Here we propose to employ wire-arc directed energy deposition (WA-DED) to tune the microstructure and the mechanical property of Mg-Al-Si alloys, on the basis of its sub-rapid solidification effect.
Qifei Han, Yueling Guo, Jinlong Hu, Rui Fu, Yangyu Yan, Changmeng Liu   +5 more
doaj   +1 more source

Cenozoic sedimentary and volcanic rocks of New Zealand: A reference volume of lithology, age and paleoenvironments with maps (PMAPs) and database. [PDF]

, 2015
This volume presents descriptive geological data and text about each Cenozoic sedimentary and volcanic geological unit to formation and member level (in some cases) exposed on land in New Zealand, including their lithology, stratigraphic age and inferred
Kamp, Peter J.J., Tayler, Michael J.S., Vincent, Kirsty A.   +2 more
core   +1 more source

Deck the Walls with Anisotropic Colloids in Nematic Liquid Crystals. [PDF]

, 2019
Nematic liquid crystals (NLCs) offer remarkable opportunities to direct colloids to form complex structures. The elastic energy field that dictates colloid interactions is determined by the NLC director field, which is sensitive to and can be controlled ...
Beller, Daniel A, Luo, Yimin, Serra, Francesca, Stebe, Kathleen J, Yao, Tianyi   +4 more
core  

Production of Sustainable Powders for Direct Energy Deposition (DED)

, 2022
openaire   +2 more sources

Performance evaluation of railway wheels repaired through laser directed energy deposition (DED-LB)

The International Journal of Advanced Manufacturing Technology
Abstract Railway wheels and rails wear is probably one of the biggest challenges in the maintenance of transportation system. In modern high-speed trains, maintenance costs can represent almost a third of the total life costs, where the wheelset wear is one of the most common and costly phenomena.
Aizpea Urresti, Jon Iñaki Arrizubieta, Jon Hernandez, Amaia Alberdi, Mikel Ortiz, Aitzol Lamikiz, Javier Santamaría   +6 more
openaire   +1 more source

Cracking Behaviour of René 80-Type Superalloy During Laser-Based Directed Energy Deposition

Metals
Features of microstructure, mechanical properties, and cracking behaviour of the René 80-type superalloy manufactured by laser-based directed energy deposition (DED-LB) have been investigated. Different cracking behaviours were observed in two thin walls
Margarita Klimova, Anastasiia Dmitrieva, Rudolf Korsmik, Grigoriy Zadykyan, Ilya Astakhov, Nikita Yurchenko, Sergey Zherebtsov, Nikita Stepanov, Olga Klimova-Korsmik   +8 more
doaj   +1 more source

Channel Wall Nozzle Manufacturing and Hot-Fire Testing Using a Laser Wire Direct Closeout Technique for Liquid Rocket Engines [PDF]

No abstract ...
Brandsmeier, Will, Gradl, Paul, Greene, Sandy E.   +2 more
core   +1 more source

Production of Sustainable Composite Powders for Direct Energy Deposition (DED)

, 2022
openaire   +2 more sources

Development and Hotfire Testing of Additively Manufactured Copper Combustion Chambers for Liquid Rocket Engine Applications [PDF]

NASA and industry partners are working towards fabrication process development to reduce costs and schedules associated with manufacturing liquid rocket engine components with the goal of reducing overall mission costs. One such technique being evaluated
Gradl, Paul R., Greene, Sandy, Protz, Chris   +2 more
core   +1 more source

Comparative analysis of the mechanical properties and environmental performance of additively manufactured 316LSi stainless steel via directed energy deposition [PDF]

Additive Manufacturing (AM) has emerged as a significant method in manufacturing, enabling innovations in advanced production techniques and material utilisation.
Maqsood, Hassan
core