Features of microstructure of carbide blanks
https://doi.org/10.21122/1683-6065-2024-1-47-50
Abstract
The task of modern science and technology is to develop new and improve the characteristics of already used materials for the production of competitive products. Due to the reorientation of sales markets and the search for alternative suppliers of carbide tools, OJSC “BSW – Management Company of “BMK” Holding” began cooperation with Chinese firms‑manufacturers/ suppliers of carbide blanks. The article examines the features of the microstructure of carbide blanks. The blanks differ from the serially used blanks in microstructure, in particular, in the class of tungsten carbide grain. This is explained by the fact that grades of alloy with nanoscale tungsten carbide grain are used for the production of blanks to achieve the necessary durability during operation. The features in the microstructure of the hard alloy also led to changes in the “density” parameter towards reduction, which is also inherent in all Chinese blanks and does not affect their operational properties. Inhibitors of grain growth – transition metal carbides, for example, VC, Cr2C3, NbC, TaC are added to hard alloy mixtures to prevent grain growth during sintering. Recently, there has been a trend towards introducing TaC + TiC additives into WC–Co alloys, which prevent grain growth and have a negligible effect on all other properties of hard alloys.
About the Authors
O. Yu. Khodosovskaya
BSW – Management Company of “BMC” Holding
Belarus
Zhlobin, Belarus, 37, Promyshlennaya str.
Belarus
Zhlobin, Belarus, 37, Promyshlennaya str.
L. V. Ovsyanikova
BSW – Management Company of “BMC” Holding
Belarus
Zhlobin, Belarus, 37, Promyshlennaya str.
Belarus
Zhlobin, Belarus, 37, Promyshlennaya str.
T. V. Gapeenko
BSW – Management Company of “BMC” Holding
Belarus
Zhlobin, Belarus, 37, Promyshlennaya str.
Belarus
Zhlobin, Belarus, 37, Promyshlennaya str.
References
1. Vedeneev A. V. Metiznoe proizvodstvo [Hardware production]. Gomel’, GGTU im. P. O. Suhogo Publ., 2019, 315 p.
2. German R. Poroshkovaja metallurgija ot A do Ja [Powder metallurgy from A to Z]. Dolgoprudnyj, Intellekt Publ., 2009, 336 p.
3. Kiffer R., Benezovskij F. Tverdye splavy [Hard alloys]. Moscow, Metallurgija Publ., 1971, 392 p.
4. Roman O. V., Gabrielov I. P. Poroshkovaja metallurgija – bezothodnaja, jenergosberegajushhaja tehnologija [Powder metallurgy – waste‑free, energy‑saving technology]. Minsk, Belarus’ Publ., 1986, 160 p.
5. Savenok A. N. Defekty stal’nyh zagotovok i metalloprodukcii [Defects in steel blanks and metal products]. Minsk, StrojMediaProekt Publ., 2019, 327 p.
6. Kablov E. N., Lukina E.A., Zavodov A. V., Efimochkin I. Ju. Formirovanie struktury tverdyh splavov na osnove sistemy WC– Co s submikronnym zernom v prisutstvii ingibirujushhih dobavok [Formation of the structure of hard alloys based on the WC–Co system with submicron grains in the presence of inhibitory additives]. Trudy VIAM = Proceedings of VIAM, 2020, no. 4–5, pp. 89–99.
7. Kablov E. N. Kljuchevaja problema – materialy [The key problem is materials]. Tendencii i orientiry innovacionnogo razvitija Rossii = Trends and guidelines for innovative development in Russia. Moscow, VIAM Publ., 2015, pp. 458–464.
8. Kablov E. N. Materialy – osnova ljubogo dela [Materials are the basis of any business]. Delovaja slava Rossii = Business glory of Russia, 2013, no. 2, pp. 4–9.
9. Savenok A. N., Sachava D. G., Lipatkina T. N. Perspektivnye napravlenija razvitija tverdosplavnogo instrumenta dlja volochenija provoloki [Perspective directions of development of hard‑alloy instrument for wire drawing]. Lit’e i metallurgija = Foundry production and metallurgy, 2007, no. 4, pp. 39–43.
10. Ortner H., Kolaska H., Ettmayer P. The history of the technological progress of hardmetal. International journal of refractory metals and hard materials, 2014, vol. 44, pp. 148–159.
Review
For citations:
Khodosovskaya O.Yu., Ovsyanikova L.V., Gapeenko T.V. Features of microstructure of carbide blanks. Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY). 2024;(1):47-50. (In Russ.) https://doi.org/10.21122/1683-6065-2024-1-47-50
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