Results 1 to 10 of about 1,294,115 (342)

Fingerprinting metal transfer from mantle [PDF]

open access: yesNature Communications, 2019
The ore-forming magmas in post-subduction copper deposits are thought to be derived from the lower crust. The Au-Te fingerprints of post-subduction magmas reveal an important role for the metasomatized sub-crustal lithospheric mantle in the formation of ...
Zengqian Hou, Rui Wang
doaj   +6 more sources

PVA-assisted metal transfer for vertical WSe2 photodiode with asymmetric van der Waals contacts [PDF]

open access: yesNanophotonics, 2023
The vertical electronic and optoelectronic devices based on 2D materials have shown great advantages over lateral devices, such as higher current density, faster switch speed, and superior short-channel control.
Song Xiaohui   +8 more
doaj   +2 more sources

Investigation on the Metal Transfer and Cavity Evolution during Submerged Arc Welding with X-ray Imaging Technology

open access: yesMetals, 2023
The physical phenomena of submerged arc welding (SAW) conducted with a 1.6 mm flux-cored wire were investigated using X-ray imaging technique. Three kinds of metal transfer modes were confirmed in this paper, namely the front flux wall-guided droplet ...
Yanfei Han   +5 more
doaj   +1 more source

Numerical Analysis of Metal Transfer Process in Plasma MIG Welding

open access: yesMetals, 2022
In plasma MIG welding, inert gas introduced from the torch nozzle is ionized in the upstream region of the MIG arc, which is termed “plasma”. This study aims to clarify the effect of the plasma on the metal-transfer process in the plasma MIG welding ...
Shinichi Tashiro   +4 more
doaj   +1 more source

Biotribology in Arthroplasty: Worn Surfaces Investigation on Ceramic Hip Femoral Heads Considering Wettability

open access: yesApplied Sciences, 2020
Ceramic-on-ceramic bearings for total hip replacement are considered the best choice to avoid problems such as osteolysis and wear, mainly related to soft bearings.
Saverio Affatato, Alessandro Ruggiero
doaj   +1 more source

Process Stability and Material Properties of TC4 Alloy Welded by Bypass Current Hot Wire Plasma Arc Welding (BC-PAW)

open access: yesMetals, 2022
To improve welding efficiency, bypass current hot wire plasma arc welding (BC-PAW) was employed to weld Ti-6Al-4V alloy. The influence of process variables on metal transfer behaviour was explored using high-speed camera, and the material properties were
Yugang Miao   +5 more
doaj   +1 more source

Metal Transfer Behavior of Metal-Cored Arc Welding in Pure Argon Shielding Gas

open access: yesMetals, 2022
The metal transfer behavior of gas metal arc welding in a pure argon shielding gas was evaluated through experiments using a standard solid wire and a metal-cored wire.
Ngoc Quang Trinh   +7 more
doaj   +1 more source

Analytical considerations of flow boiling heat transfer in metal-foam filled tubes [PDF]

open access: yes, 2012
Flow boiling in metal-foam filled tube was analytically investigated based on a modified microstructure model, an original boiling heat transfer model and fin analysis for metal foams.
Du, Y.P.   +3 more
core   +4 more sources

Microstructural Analysis of Friction Stir Butt Welded Al-Mg-Sc-Zr Alloy Heavy Gauge Sheets

open access: yesMetals, 2020
Friction stir welding (FSW) on a heavy gauge sheet of a hereditary fine-grained Al-Mg-Sc-Zr alloy was carried out to study the specifics of plasticized metal flow and microstructural evolution in different sections and zones of the joint.
Tatiana Kalashnikova   +5 more
doaj   +1 more source

Numerical study on conjugate heat transfer in a liquid-metal-cooled pipe based on a four-equation turbulent heat transfer model

open access: yesNuclear Engineering and Technology, 2023
Conjugate heat transfer between liquid metal and solid is a common phenomenon in a liquid-metal-cooled fast reactor's fuel assembly and heat exchanger, dramatically affecting the reactor’s safety and economy.
Xian-Wen Li   +4 more
doaj   +1 more source

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