Features of structure formation in antifriction composite powder infiltered with copper alloy material based on iron (pseudo-alloy) under high-temperature thermomechanical treatment

The results of studies of the structure formation process in an iron-based antifriction composite powder material infiltrated with a copper alloy (pseudo-alloy) during thermal and high-temperature thermomechanical treatment (HTMT) are presented. It is shown that after infiltration the structure of the pseudo-alloy consists of sections of the steel skeleton with a perlite structure almost homogeneous in carbon and a small amount of cementite, sections of the copper phase located along the boundaries and at the joints of the particles of the steel skeleton, sulfide inclusions mainly in the copper phase. In the process of hardening, carbon is redistributed in the particles of the steel skeleton; a layer 2–5 µm thick with an increased carbon content is formed at the boundary with the copper phase. During HTMT, the structure is refined, a macrotexture is formed, and the thickness of the copper phase interlayers decreases, depending on the degree of deformation. The degree of deformation also affects the structure of the steel skeleton. After HTMT with a degree of deformation of 30 %, the structure consists of structureless martensite, troosto-martensite and residual austenite, and in the areas adjacent to the copper phase the carbon content is slightly lower, with a degree of deformation of 50 % – structureless martensite, 25 % more austenite content, more uniform distribution of carbon. It has been established that, due to the activation of diffusion processes during deformation during HTMT, molybdenum sulfides decompose and form iron and copper sulfides of various compositions; molybdenum alloys the iron base or forms carbide. The investigation results can be used in the development of high-strength antifriction materials for heavily loaded friction units.

1. Sorokin G. M. Problems of technical renewal of various branches of mechanical engineering. Friction and Wear, 2001, vol. 22, no. 3, pp. 322–331 (in Russian).

2. Garkunov D. N. Tribotechnics. Design, Manufacture and Operation of Machines. Moscow, Moscow Agricultural Academy named after K. A. Timiryazev, 2002. 626 p. (in Russian).

3. Burkovskaya N. P., Sevostyanov N. V., Bolsunovskaya T. A., Efimochkin I. Yu. Improvement of materials for sliding bearings of internal combustion engines (review). Trudy VIAM = Proceedings of VIAM, 2020, no. 1 (85), pp. 78–91 (in Russian). https://doi.org/10.18577/2307-6046-2020-0-1-78-91

4. Filippov M. A., Sheshukov O. Yu. Friction and Antifriction Materials. Yekaterinburg, Publ. House of the Ural State University, 2021. 204 p. (in Russian).

5. Kulagina G. S., Kan A. Ch., Zhelezina G. F., Levakova N. M. Antifriction materials based on polymer fibers. Trudy VIAM = Proceedings of VIAM, 2022, no. 11 (117), pp. 48–59 (in Russian). https://doi.org/10.18577/2307-6046-2022-0-11-48-59

6. Fedorchenko I. M., Pugina L. I. Composite Sintered Antifriction Materials. Kyiv, Naukova dumka Publ., 1980. 404 p. (in Russian).

7. Ivanov V. A. A Systematic Approach to the Creation of Antifriction Materials and Friction Units. Khabarovsk, Publ. House of the Pacific State University, 2015. 239 p. (in Russian).

8. Kolesnikov V. I., Belyak O. A. Mathematical Models and Experimental Studies – the Basis for the Design of Heterogeneous Antifriction Materials. Moscow, Fizmatlit Publ., 2021. 216 p. (in Russian).

9. Chichinadze A. V., Berliner E. M., Brown E. D. Friction, Wear and Lubrication (Tribology and Tribotechnics). Moscow, Mashinostroenie Publ., 2003. 576 p. (in Russian).

10. Kablov E. N. Materials of the new generation – the basis of innovation, technological leadership and national security of Russia. Intellekt i tekhnologii = Intel & Tech, 2016, no. 2 (14), pp. 16–21 (in Russian).

11. Kablov E. N. Without New Materials – There is No Future. Metallurg = Metallurgist, 2014, 57, no. 11–12, pp. 1057–1061. https://doi.org/10.1007/s11015-014-9844-z

12. Kopeliov D. Engine Bearing materials. 2019. Available at: http://www.enginepartsuk.net/sites/default/files/Engine-Bearing-materials.pdf

13. Denisova N. E., Shorin V. A., Gontar’ I. N., Volchikhina N. I., Shorina N. S. Tribotechnical Materials Science and Tribotechnology. Penza, Penza State University Publishing House, 2006. 248 p. (in Russian).

14. Tuchinskii L. I. Composite Materials Obtained by Impregnation. Moscow, Metallurgiya Publ., 1986. 208 p. (in Russian).

15. Latypov M. G., Cherepakhin E. V., Shatsov A. A. Structure and properties of steel-copper metastable pseudo-alloys. Perspektivnye materialy, 2008, no. 2, pp. 63–68 (in Russian).

16. Karpinos D. M., Tushinskii L. I., Sapozhnikova A. B., Grudina T. V., Vishnyakov L. R., Shafit Ya. M., Mikheev V. I. Composite Materials in Technology. Kyiv, Tekhnika Publ., 1985. 152 p. (in Russian).

17. Semenov A. P. Antifriction materials: application experience and prospects. Trenie i smazka v mashinakh i mekhanizmakh = Friction & Lubrication in Machines and Mechanisms, 2007, no. 12, pp. 21–36 (in Russian).

18. Ivanov V. V. Obtaining and Properties of Copper-Containing Composite Materials for Electrical Purposes. Krasnoyarsk, 2001. 363 p. (in Russian).

19. Krasnobaev A. G. Structural Design of Iron-Based Composite Materials with Specified Functional Properties. Rostov-on-Don, 2005. 198 p. (in Russian).

20. Karapetyan G. Kh., Akopov N. L., Karapetyan F. Kh., Manukyan N. N. Determination of the optimum amount of the solid lubricant of composite antifriction materials. Soviet Powder Metallurgy and Metal Ceramics, 1988, vol. 27, pp. 485–488. https://doi.org/10.1007/BF00798861

21. Braithwaite E. R. Solid Lubricants and Surfaces. Pergamon Press, 1964. VIII, 286 p. https://doi.org/10.1016/C2013-0-01729-X

22. Antsiferov N. N., Maslennikov A. A., Shatsov V. N. Structural Strength of Concentration-Inhomogeneous Powder Steels. Perm, Perm State Technical University, 1996. 206 p. (in Russian).

23. Shatsov A. A. Optimization of the composition and mode of heat treatment of composite material steel-copper. Izvestiya vuzov. Tsvetnaya metallurgiya = Izvestiya. Non-Ferrous Metallurgy, 1998, no. 5, pp. 52–56 (in Russian).

24. Minakova R. V., Rachek A. P., Kryachko L. A., Kresanova A. P., Zatovsky V. G. Features of texturing during cold rolling of pseudo-alloys. Powder Metallurgy and Metal Ceramics, 2000, vol. 39, no. 1–2, pp. 78–84. https://doi.org/10.1007/bf02677447

25. Dyachkova L. N. Investigation of the structure and properties of an infiltrated iron-based material subjected to ther- momechanical processing. Materialy, tekhnologii, instrumenty [Materials, Technologies, Tools], 2007, vol. 12, no. 3, pp. 46–51 (in Russian).

26. Dyachkova L. N. Powder Materials Based on Iron with Enhanced Mechanical and Tribotechnical Properties. Minsk, Belaruskaya navuka Publ., 2020. 203 p. (in Russian).

27. Patnaik Pradyot. Handbook of Inorganic Chemicals. McGraw-Hill Education, 2003. 1125 p.

28. Dyachkova L. N. Peculiarities of hardening of steel – copper alloy pseudo-alloys obtained by infiltration during hot plastic deformation. Vestsi Natsyyanal’nai akademii navuk Belarusi. Seryya fizika-technichnykh navuk = Proceedings of the National Academy of Sciences of Belarus. Physical-technical series, 2022, vol. 67, no. 2, pp. 156–166 (in Russian). https://doi.org/10.29235/1561-8358-2022-67-2-156-166

29. Bernshtein M. L. Structure of Deformed Metals. Moscow, Metallurgiya Publ., 1977. 431 p. (in Russian).

30. Dyachkova L. N. Influence of heat treatment on the structure and properties of pseudo-alloy steel – copper alloy obtained by infiltration. Vestsi Natsyyanal’nai akademii navuk Belarusi. Seryya fizika-technichnykh navuk = Proceedings of the National Academy of Sciences of Belarus. Physical-technical series, 2021, vol. 67, no. 1, pp. 27–38 (in Russian). https://doi.org/10.29235/1561-8358-2022-67-1-27-38