ELECTRON BEAM DEPOSITION OF BORON-BASED COATINGS UNDER VACUUM PRESSURE AND EXPERIMENTAL RESULTS OF NITROGENATION IN ELECTRON BEAM PLASMA

ELECTRON BEAM DEPOSITION OF BORON-BASED COATINGS UNDER VACUUM PRESSURE AND EXPERIMENTAL RESULTS OF NITROGENATION IN ELECTRON BEAM PLASMA

Авторы

  • Lazizbek Abdullayev Abdulazizovich

DOI:

https://doi.org/10.61151/stjniet.v9i3.458

Ключевые слова:

vacuum, plasma-cathode, electron sources, electron beams, boron coating, mass charge, plasma nitriding

Аннотация

When using optimal modes, energy consumption is (170-190) W / cm2. It matches most of the properties of electrolytes for anodic heating.

  It was found that the following structures are formed in boron coating: oxide zone (Fe3O4, Fe2O3, FeO) and nitride-martensite layer (Fe3N, martensite and retained austenite).

The method of backscattering protons from the nucleus made the concentration of boron in the layer 13% and nitrogen - 11%.

  After anodizing the needles, their microhardness increases from HB=54-60 to HB=135-150, that is, the microhardness of their work surface increases 2.5-3 times.

 The increase in the microhardness of the needles leads to a decrease in the cost of replacing them with a new one, as a result of which they are slightly (2-3 times) less bent and broken during the sewing process.

  After anodic boron-nitriding of the needles, their working surfaces increase the service life of the needles by at least 3 times.

Загрузки

Опубликован

2024-09-30

Как цитировать

Abdullayev, L. (2024). ELECTRON BEAM DEPOSITION OF BORON-BASED COATINGS UNDER VACUUM PRESSURE AND EXPERIMENTAL RESULTS OF NITROGENATION IN ELECTRON BEAM PLASMA. Scientific and Technical Journal of Namangan Institute of Engineering and Technology, 9(3), 189–194. https://doi.org/10.61151/stjniet.v9i3.458
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