Comprehensive studies of the reinforced zone properties of composite drilling tool equipment
DOI:
https://doi.org/10.31471/1993-9965-2025-2(59)-13-23Keywords:
drilling tool equipment, bulk-reinforced zone, granular hard alloy, metal binder, macrostructure, microstructure, eutectic, carbides, microhardness, impact-abrasive resistance.Abstract
The article analyzes modern technologies for producing composite materials based on powder metallurgy, infiltration, and casting methods. The matrix of such composites is aluminum and copper alloys, while the filler consists of powder materials based on carbides of refractory metals. The unsuitability of such materials for operation under high static and dynamic loads in the presence of an abrasive environment is substantiated. The essence of the technology for producing wear-resistant bulk-reinforced equipment for drilling tools and the main requirements for their performance are briefly described. The results of comprehensive studies of macro- and microstructure, microhardness, and wear resistance are considered in the context of ensuring the operational characteristics of the reinforced zone of composite equipment for rock-destroying and emergency drilling tools. The distribution pattern of hard alloy grains within the volume of the reinforced zone has been determined. The main defects of reinforced castings have been identified, namely blowholes and cavities resulting from gas release and non-uniform crystallization of the base metal in the casting. Through the preparation of microsections, their etching, and examination using metallographic equipment, the microstructures of the metal binder of the reinforced zone were identified. The microhardness of the metal binder, the transition zone, and the reinforcing components was determined using indentation and scratching methods. It is noted that the abrasive and impact-abrasive resistance of the tool is significantly influenced by the percentage content of reinforcing grains, their distribution and concentration within the reinforced zone, as well as the degree of dissolution of reinforcing components in the metal binder, primarily tungsten, titanium, nickel, and cobalt. As a result, a transition zone forms around the hard alloy grains, ensuring the strength and toughness of their retention in the base metal. The test results of reinforced samples for resistance to abrasive wear reveal the influence of the concentration of reinforcing grains on their durability.
Downloads
References
1. Reintal, O. O., Lykhoshva, V. P., Tymoshenko, A. M., & Klymenko, L. M. (2020). Cast composite materials based on copper alloys. Metal and Casting of Ukraine, 28(3), 69–74. https://www.metalsandcasting.com/index.php/mcu/article/view/122 [in Ukrainian]
2. Minitskyi, A. V., Yamshynskyi, M. M., Byba, Ye. H., Minitska, N. V., Polishchuk, K. V., Lukianenko, I. V., & Kyvhylo, B. V. (2023). Influence of sintering conditions on the structure formation of tungsten-based composite materials. Metal and Casting of Ukraine, 31(2), 62–68. https://doi.org/10.15407/steelcast2023.02.062 [in Ukrainian]
3. Nebozhak, I. A., Derevianko, O. V., Verkhovliuk, A. M., & Kanibolotskyi, D. S. (2022). The nature of the connection between the reinforcing phase and the matrix in a cast composite material of the [Al – FeCr] system and the mechanism of the reinforcement process of cast Al-alloys by the LGM-process. Metal and Casting of Ukraine, 30(4), 36–47. https://metalsandcasting.com/index.php/mcu/article/download/40/40 [in Ukrainian]
4. Smirnova, Ya. O., & Huriia, I. M. (2022). Microstructure and mechanical properties of layered cast composite VT-6/Al. Metal and Casting of Ukraine, 30(1), 84–90. https://www.metalsandcasting.com/index.php/mcu/article/view/10 [in Ukrainian]
5. Kyryliuk, S. F., Kyryliuk, Ye. S., & Bahliuk, H. A. (2025). Influence of hot stamping on the structure and properties of powder composites of the Fe-FKh800–TiB2 system. Scientific Notes, (81), 62–69. https://doi.org/10.36910/775.24153966.2025.81.9 [in Ukrainian]
6. Pagounis, E., & Lindroos, V. K. (1998). Processing and properties of particulate reinforced steel matrix composites. Materials Science and Engineering: A, 246(1), 221–234. https://doi.org/10.1016/S0921-5093(97)00710-7
7. Yan, X., Zheng, Y., Qiu, Y., Qiao, G., Du, W., He, H., & Bai, Q. (2024). Role of reinforcement on the microstructure of WC reinforced Fe-based composite coating prepared by direct energy deposition. Materials Characterization, 209, 113731. https://doi.org/10.1016/j.matchar.2024.113731
8. Raja, S., Melkani, U., Sarma, R., Kapil, S., & Muthu, N. (2025). A method for realizing continuous tungsten fiber-reinforced steel matrix composites by wire-arc-based directed energy deposition. Composite Structures, 354, 118811. https://doi.org/10.1016/j.compstruct.2024.118811
9. Ren, C., Zhao, N., Ma, L., Shan, R., Xu, Y., Cui, Z., & Zhong, L. (2024). Preparation and formation mechanism of (W) WC/Fe bundle reinforced iron matrix composites. Ceramics International, 50(23), 51152–51161. https://doi.org/10.1016/j.ceramint.2024.10.027
10. Gao, W., Zhou, Y., Wu, S., Cai, R., Zhao, Y., Li, S., & Huang, Z. (2022). Preparation, microstructure and mechanical properties of steel matrix composites reinforced by a 3D network TiC ceramics. Ceramics International, 48(14), 20848–20857. https://doi.org/10.1016/j.ceramint.2022.04.074
Downloads
Published
How to Cite
Issue
Section
License
Авторські права....
1.png)
