The sublimation effect in the technology of centrifugal arc dispersion of tungsten carbide
- Authors: Zverovshchikov A.E.1, Borisov D.A.1
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Affiliations:
- Penza State University
- Issue: No 2 (2025)
- Pages: 126-135
- Section: MACHINE SCIENCE AND BUILDING
- URL: https://journals.rcsi.science/2072-3059/article/view/308038
- DOI: https://doi.org/10.21685/2072-3059-2025-2-11
- ID: 308038
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Abstract
Background. Sublimation during high-temperature fracture of hard alloys affects the formation of a fraction of ultrafine particles. For subsequent technologies of using powder raw materials, this effect leads to significant changes in the molding modes of products. The determination of the mass fraction of sublimation is also relevant for assessing the profitability of the CDD method. The purpose of this work is to create a theoretical calculation methodology that makes it possible to determine which part of a rod dispersed using a plasma arc sublimates depending on the conditions. Materials and methods. Calculations that make it possible to predict the technological yield of sublimated material. These calculations are applicable for other technological processes related to high-temperature dispersion of materials. Data on powders obtained using CDD and EDD methods are presented. Results. The article contains calculations that make it possible to determine the percentage of evaporated and sublimated tungsten carbide in the process of the CDD method used by researchers from PSU; formulas have been created that are suitable for carrying out similar calculations by specialists engaged in work with similar processes. Conclusions. Based on data on evaporation and sublimation, as well as the required electricity, the CDD method is suitable for designing automated industrial plants for the production of powder raw materials for powder metallurgy.
About the authors
Aleksandr E. Zverovshchikov
Penza State University
Author for correspondence.
Email: azwer@mail.ru
Doctor of engineering sciences, associate professor, head of the sub-department of technologies and equipment of mechanical engineering
(40 Krasnaya street, Penza, Russia)Dmitry A. Borisov
Penza State University
Email: steerman70098@yandex.ru
Leading engineer of the sub-department of technologies and equipment of mechanical engineering
(40 Krasnaya street, Penza, Russia)References
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