Results 31 to 40 of about 193,257 (302)

Unusual Cathode Erosion Patterns Observed for Steered Arc Sources

open access: yes, 2014
A cathodic arc source with a magnetron-type magnetic field was investigated for stability, erosion, and compatibility with a linear macroparticle filter.
Anders, André, Kolbeck, Jonathan
core   +1 more source

Comparison of Different Unconventional Thermal Energies for Steel Cutting Process

open access: yesDiyala Journal of Engineering Sciences, 2013
different unconventional heat sources for material processing were discussed . The heat sources such as plasma arc, electron beam and Co2 laser were employed previously by other researchers, while " Co2laser– gas mixture" system was studied during the ...
Jasim Hassan Rasheed
doaj   +1 more source

Ionization in the plasma of a copper arc

open access: yesJournal of Research of the National Bureau of Standards Section A: Physics and Chemistry, 1962
From the relative intensities of arc and spark lines observed in a d-c arc in air between copper electrodes, the degree of ionization of eleven elements added to the copper has been determined. With the aid of Saha’s ionization equation, the electron density in the arc was calculated to be 2.4×10(14) cm(−3). Partition functions for atoms and ions of 29
openaire   +1 more source

Research of a Novel Non-Axisymmetric Side-Compressed Variable Polarity Plasma Arc and Its Pressure Distribution Characteristics

open access: yesMetals
In the keyhole variable polarity plasma arc weldng (VPPAW) process at horizontal position, the metal driven by gravity gathered on one side of the molten pool, and the weld formation is difficult, especially for thick workpiece welding.
Hongxing Zhao, Chunli Yang, Chenglei Fan
doaj   +1 more source

Influence of an Argon/Silane Atmosphere on the Temperature of a Thermal Plasma

open access: yesAdvanced Engineering Materials, EarlyView.
The influence of a silane‐doped argon atmosphere on the chemical composition and temperature of a thermal nontransferring argon plasma is investigated using optical emission spectroscopy. As a result of the high amount of free electrons resulting from the stepwise ionization and dissociation of the silane molecule, even a silane addition of 0.01 vol ...
Lena Kreie   +4 more
wiley   +1 more source

Plasma-Pulsed GMAW Hybrid Welding Process of 6061 Aluminum and Zinc-Coated Steel

open access: yesCrystals, 2023
A novel plasma-pulsed GMAW hybrid welding (plasma-GMAW-P) process is proposed for joining 6061 aluminum and zinc-coated steel. The results show that the change in welding heat input has little effect on the microstructure of the joint and the composition
Hongchang Zhang   +7 more
doaj   +1 more source

Oxide‐Free Titanium Coatings by Wire Arc Spraying in a Silane‐Doped Inert Atmosphere

open access: yesAdvanced Engineering Materials, EarlyView.
A silane‐doped argon atmosphere enables the production of oxide‐free titanium coatings via twin‐wire arc spraying at ambient pressure. This innovative approach eliminates residual oxygen, creating process conditions that prevent oxidation and nitride formation.
Manuel Rodriguez Diaz   +4 more
wiley   +1 more source

Development of an arc root model for studying the electrode vaporization and its influence on arc dynamics

open access: yesAIP Advances, 2020
Plasma–solid interaction represents a major concern in many applications such as power-interruption and plasma–metal processing. Characterized by high-current density and voltage drop, the arc roots dissipate intensive heat to electrode vaporization ...
Jindong Huo   +6 more
doaj   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

open access: yesAdvanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios   +5 more
wiley   +1 more source

Dual-constricted plasma arc cladding of Inconel 625 alloy: arc characteristics, microstructure, and corrosion resistance

open access: yesJournal of Materials Science: Materials in Engineering
Inconel 625 alloy exhibits high strength, fabricability, and resistance to corrosion. Cladding processes including laser cladding, arc welding-based cladding, and plasma arc cladding have been applied to deposit the Inconel 625 layer with metallurgical ...
Xinyi Shi   +3 more
doaj   +1 more source

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