Nonvacuum Surfacing of Protective Coatings Using a Low-Energy Electron Beam


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The results of electron-beam surfacing in air of protective coatings by a low-energy (120 keV) electron beam produced by an electron gun with a plasma emitter are presented. The gun is mounted on an industrial robotic manipulator KUKA, which allows the electron beam to be moved to the atmosphere along a given path without electromagnetic sweep. The combined (self-propagating high-temperature synthesis and electron-beam surfacing) method for obtaining coatings from reaction mixtures of TiO2: 2.1C and TiO2: 0.3Cr2O3: 3.3С is implemented using this setup. The optimum composition of the reaction mixtures and the deposition regimes are determined by thermodynamic modeling using the TERRA program. The obtained coatings with a thickness of 120–200 μm have a microhardness of 12 GPa. The coatings and the transition layer are established to have good heat resistance up to 900°C. Noticeable changes in the weight characteristics of coatings occur at above 1000°C.

作者简介

S. Kornilov

Tomsk State University of Control Systems and Radioelectronics

编辑信件的主要联系方式.
Email: kornilovsy@gmail.com
俄罗斯联邦, Tomsk, 634050

N. Rempe

Tomsk State University of Control Systems and Radioelectronics

Email: kornilovsy@gmail.com
俄罗斯联邦, Tomsk, 634050

N. Smirnyagina

Institute of Physical Materials Science, Siberian Branch

Email: kornilovsy@gmail.com
俄罗斯联邦, Ulan-Ude, 670047

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