High current pulsed electron beam

Author: wdtq

August undefined, 2024

WebMicrostructures of CuCr25 and CuCr50 alloys treated by high current pulsed electron beam (HCPEB) were investigated in this work. The microstructure and solidification behavior of the Cr-rich phases were characterized by scanning electron microscopy (SEM). Results show that a remelting layer of 3~5 μm is formed on the surface of Cu-Cr alloys. Web22 de nov. de 2024 · Commercial TiAlN-coated carbide tools were post-treated using the high current pulsed electron beam irradiation method. The influence of the energy …

Coatings Free Full-Text Studies on the Thermodynamic …

Web12 de dez. de 2024 · Although the SC effect occurs under high charge conditions, a component of the interference fringe remained. Consequently, despite the high current density, the pulsed electron beam emitted from the PC has sufficient coherence to realize time-resolved holography that can be used to temporally analyze phase information. Web1 de mar. de 2016 · A high-current electron beam is extracted from the plasma layer and is accelerated by the strong diode electric field. Further, an increase of the time interval … how much is motley fool

Dmitri Novikov - Startup Growth Advisor - Freelance LinkedIn

Web12 de dez. de 2024 · Although the SC effect occurs under high charge conditions, a component of the interference fringe remained. Consequently, despite the high current … Web1 de ago. de 2016 · In order to realize a uniform high current pulsed electron beam irradiation for a circular component, we designed an annular cathode for HCPEB … Web1 de out. de 2004 · Physical models and numerical simulations are applied to describe the thermal–dynamical processes of the high current pulsed electron beam (HCPEB) … how much is motionleap

Design and characterization of the annular cathode high current …

Thermal imaging diagnostics of high-current electron beams

Web15 de nov. de 2024 · Recently, high-current pulsed electron beam (HCPEB) irradiation has been proposed as an innovative non-equilibrium surface modification technology, … Web1 de jan. de 2024 · As Figures 1 and 2 show, PA6’s surface water contact angle without bombardment treatment by HCPEB is 75°, indicating that the original PA6 surface is hydrophilic. After bombarding the PA6 surface with 26 kV of high-current pulsed electron beam, the contact angle became 55°, showing increased hydrophilicity. how do i change printer color settingsWebHigh current pulsed electron beam (HCPEB) is a new type of surface modification technology [19, 20, 21]. During the instantaneous process of HCPEB bombardment, the higher energy (10 7 –10 9 W/cm 2 ) acts on the surface of the material in a very short time (several microseconds), resulting in extremely rapid heating, cooling, melting, and even … how much is mother of pearl worth

"Web13 de mar. de 2024 · The paper presents the results of the structure and properties modification of 20Cr23Ni18 (AISI 310) high chrome austenitic stainless steel after the exposure to the low energy high current pulsed electron beam (LEHCPEB) irradiation. The AISI 310 is used to manufacture machine components and mechanisms operating at … " - High current pulsed electron beam

High current pulsed electron beam

Temperature–stress fields and related phenomena induced by a …

Web7 de abr. de 2024 · A high output power and a high pulse energy can significantly enhance the scope of applications of the intense electron beam accelerator (IEBA) in physical … WebIn this study, we present the results of the effect of duplex surface modification of 304-L stainless steel substrates by an electron-beam treatment (EBT) and subsequent deposition of diamond-like carbon coatings on the surface roughness and corrosion behavior. During the EBT process, the beam power was varied from 1000 to 1500 W. The successful …

Did you know?

Web10 de jun. de 2024 · Abstract. X-ray diffraction analysis, optical metallography, and transmission electron microscopy demonstrated that irradiation with high-current pulsed electron beams in the melting mode leads to formation of residual compressive stresses and a finely dispersed globular-lamellar microstructure (the α, α', and α'' plates being … Web13 de abr. de 2024 · In O-type devices an electron beam drifts in the same direction as the applied magnetic field. Among them, the O-type slow-wave devices use the axial slow …

Web26 de dez. de 2024 · chromium by high current pulsed electron beam treatment Chen Li, Qingfeng Guan, Jie Cai et al.-Compounded Surface Modification of ZK60 Mg Alloy by High Current Pulsed Electron Beam+Micro-plasma Oxidation Gao Bo, Hao Yi, Tu Ganfeng et al.-High-energy density beams and plasmas for micro- and nano-texturing of surfaces … Web8 de out. de 2003 · We study in this article the formation mechanism of craters on a metal surface during the high current pulsed electron beam processing. Based on experimental investigations and a physical model, the melting process and their temperature profiles are simulated for substrates of aluminum and steels. Initial melting positions, crater depths, …

Web1 de dez. de 2012 · @article{Li2012DevelopmentMO, title={Development mechanism of cathode surface plasmas of high current pulsed electron beam sources for microwave irradiation generation}, author={Limin Li and Lei Lei Chang and L Zhang and Jinliang Liu and G. Chen and Jianchun Wen}, journal={Laser and Particle Beams}, year={2012}, … Web1 de abr. de 2024 · In this paper, high-current pulsed electron beam (HCPEB) irradiation was used as surface alloying of chromium/copper (Cr/Cu) system to improve the surface …

Web13 de abr. de 2024 · We study the formation of a high-current electron beam with a duration of 1 ns in a magnetically insulated coaxial diode with a cold cathode under …

Web12 de set. de 2024 · Abstract. In experiments on ion acceleration in the Katran pulsed high-current relativistic electron beam generator with output voltage U ≤ 250 kV and current … how do i change print size largerWeb29 de set. de 2024 · The algorithm and results of calculating the integral and differential energy spectra of a pulsed electron beam (350–500 keV, … how much is motologicWeb30 de nov. de 2024 · The “HOPE-I” type high-current pulsed electron beam (HCPEB) equipment was used to irradiate the pure aluminum material with Zr coating preset by ball milling to realize the alloying of a Zr–Al coating surface. The microstructure and phase analysis were conducted by XRD, SEM, and TEM. The experimental results show that … how do i change printer from offline to readyWebAfter high current pulsed electron beam treatment, many cracks are found on surface. The main reason is possibly due to the quasi-static thermal stresses accumulated along the surface of the specimens during the electron beam treatment. The surface grain grow from Cr particles because of heating by electron beam, and their size is less than 200nm. how do i change printer layoutWeb1 de jul. de 2024 · High-current pulsed electron-beam (PEB) treatment was applied as a surface finishing procedure for Ti–35Nb–7Zr–5Ta (TNZT) alloy produced by electron … how much is motherboard for pcWeb28 de mai. de 2024 · High-current pulsed electron beam sources are the core components of high-power microwave systems. In order to meet the requirements of … how do i change printer inksWeb27 de abr. de 2004 · Physical models and numerical simulations are used to describe the thermal-mechanical process induced by high current pulsed electron beam (energy E=10–40 keV, energy density in a pulse S=1–6 J/cm 2, pulse duration τ=0.5–5 μs) irradiation. The temperature simulation reveals ultrahigh heating and cooling rates on the … how much is motor oil