Results 51 to 60 of about 276,218 (294)

Innovative Processing of Compacted Waste Aluminum Alloy Powders via Controlled Remelting and Solidification

open access: yesAdvanced Engineering Materials, EarlyView.
This study demonstrates an efficient recycling route for out‐of‐spec AlSi10Mg atomized powders through compaction and arc remelting followed by suction casting. By correlating compaction load, cooling rate, and resulting microstructure, we show that intermediate pressures (50–80 kN) and rapid cooling refine dendrites, reduce porosity, and enhance ...
Mila Christy de Oliveira   +4 more
wiley   +1 more source

Computer modeling of arc drivers [PDF]

open access: yes, 1975
Model is generated from description of element connections involved in complete arc network, list of corresponding circuit element values, description of circuit current excitation, and list of out-puts desired.
Dannenberg, R. E., Slapnicar, P. I.
core   +1 more source

A Passive Imaging System for Geometry Measurement for the Plasma Arc Welding Process [PDF]

open access: yesIEEE Transactions on Industrial Electronics, 2017
Automatic and flexible geometry measurement of the weld pool surface can help better understand the complex welding processes and even provide feedback to better control this process. Most of existing imaging systems use an additional source of illumination to remove the light interference coming from the welding arc but it is usually costly.
Tomas Font comas   +4 more
openaire   +3 more sources

Interactions between Molten High‐Silicon Electrical Steels and Carbon‐Bonded MgO Refractories Based on Recyclates

open access: yesAdvanced Engineering Materials, EarlyView.
This study examines how several molten high‐silicon electrical steels interact with both conventional and recycled MgO–C refractories. For this, various immersion experiments are conducted. In addition to infiltration, a number of mechanisms are identified and explained that control the corrosion of the refractory material.
Lukas Neubert   +7 more
wiley   +1 more source

Optical tomography of the aurora and EISCAT [PDF]

open access: yesAnnales Geophysicae, 1998
Tomographic reconstruction of the three-dimensional auroral arc emission is used to obtain vertical and horizontal distributions of the optical auroral emission.
H. U. Frey   +5 more
doaj   +1 more source

Quantum transport in a curved one-dimensional quantum wire with spin-orbit interactions

open access: yes, 2010
The one-dimensional effective Hamiltonian for a planar curvilinear quantum wire with arbitrary shape is proposed in the presence of the Rashba spin-orbit interaction.
Erhu Zhang   +8 more
core   +1 more source

High-resolution 3D weld toe stress analysis and ACPD method for weld toe fatigue crack initiation [PDF]

open access: yes, 2019
Weld toe fatigue crack initiation is highly dependent on the local weld toe stress-concentrating geometry including any inherent flaws. These flaws are responsible for premature fatigue crack initiation (FCI) and must be minimised to maximise the fatigue
Chaudhuri, Somsubhro   +3 more
core   +2 more sources

On the Conformal Geometry of Analytic Arcs

open access: yesAmerican Journal of Mathematics, 1915
Uf (u) =ao+al(u-u0) +a2(u-UO)2+..'.. V=g(v) =b0+bj(v-v0) +b2(t'-V0)2+....2 where u =x+iy and v= x;-iy, x (and y, which may be real or complex, being the Cartesian coordinates of a point; also, f (u) and g (v) have radii of convergence different from zero and a, * 0, b, * 0. Both the real and complex, or general, conformal groups are infinite continuous
openaire   +2 more sources

Influence of Sample Preparation and Processing Procedures on the Thermal Diffusivity of MgO‐C Refractories

open access: yesAdvanced Engineering Materials, EarlyView.
The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan   +4 more
wiley   +1 more source

Melt pool geometry and microstructure of Ti6Al4V with B additions processed by selective laser melting additive manufacturing

open access: yesMaterials & Design, 2019
This paper documents an investigation into the microstructures and melt pool geometry features of Ti6Al4V + (0, 1, 2, 5, 10, wt%) B alloys processed by selective laser melting (SLM).
Yining He   +3 more
doaj   +1 more source

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