Investigation of the surfaced metal of the Fe–Cr–Ni–Mn–Mo–Ti–Nb–C system for operation under high-temperature gas-abrasive wear

Compositions of flux-cored wires for electric arc surfacing of alloys of the Fe-Cr-Ni-Mn-Mo-Ti-Nb-C alloy system, resistant to high-temperature gas-abrasive wear, were developed. The deposited alloys were studied by optical and electron microscopy, X-ray mi-crospectral and X-ray diffraction analysis. The influence of the carbon content in the alloy on its structural-phase composition, hardness, and wear resistance at normal and elevated temperatures up to 600°C was revealed. It was established that increasing the carbon content in the alloy from 1.2 to 2.8 wt. % leads to increasing the volume fraction of (Cr, Fe)_xC_y carbides involved in the formation of the eutectic austenite-carbide matrix of the alloy at 6 times. Their morphology also changes from (Fe, Cr)₂₃C₆ to (Fe, Cr)₇C₃. In this case, the content of (Ti, Nb, Mo)_xC_y and Mo_xC carbides in the alloy changes insignificantly, and their average size increases by 10%. It has been established that the formation of a composite structure in the alloy contributes to its high resistance to gas-abrasive wear at a temperature of 600°C. The wear resistance of the developed alloy is comparable to a foreign industrial analogue at a much lower cost.

1. Vasudev, H., Thakur, L., Singh, H., Bansal, A., Effect of addition of Al2O3 on the high-temperature solid particle erosion behaviour of HVOF sprayed Inconel-718 coatings, Materials Today Communications, 2022, V. 30, No 103017. DOI: 10.1016/j.mtcomm.2021.103017.

2. Wu, W., Wei, B., Li G., Chen, L., Wang, J., Ma, J., Study on ammonia gas high temperature corrosion coupled erosion wear characteristics of circulating fluidized bed boiler, Engineering Failure Analysis, 2022, V. 132, No 105896. DOI: 10.1016/j.engfailanal.2021.105896.

3. Jindal, C., Sidhu, B. S., Kumar, P., Sidhu, H.S., Performance of hardfaced / heat treated materials under solid particle erosion: A systematic literature review, Materials Today: Proceedings, 2022, V. 50, Part 5, pp. 629-639. DOI: 10.1016/j.matpr.2021.03.441.

4. Hidalgo, V.H., Varela, F.J. B., Rico, E.F., Erosion wear and mechanical properties of plasma-sprayed nickel- and iron-based coatings subjected to service conditions in boilers, Tribology international, 1997, V. 30, Is. 9, pp. 641-649. DOI: 10.1016/S0301-679X(97)00029-7.

5. Manish, R., Elevated temperature erosive wear of metallic materials, Journal of Physics D: Applied Physics, 2006, V. 39, pp. 101-124. DOI: 10.1088/0022-3727/39/6/R01.

6. Vinogradov, V.N., Platonova, S.N., Livshits, L.S., Levin, S.M., Nekotorye voprosy mekhanizma razrusheniya stalei v usloviyakh gazoabrazivnogo iznashivaniya [Some questions of the mechanism of destruction of steels under conditions of gas-abrasive wear], Friction and wear, 1980, V. 1, No 4, pp. 656-661.

7. Sheinman, E., Eroziya materialov. Obzor amerikanskoj pechati [Erosion of materials. Review of the american press], Friction and wear, 1980, V. 27, No 6, pp. 665-675.

8. Kleis, I., Kulu, P., Solid particle erosion: occurrence, prediction and control, London: Springer, 2008. DOI: 10.1007/978-1-84800-029-2.

9. Veinthal, R., Kulu, P., Kaerdi, H., Microstructural aspects of abrasive wear of composite powder materials and coatings, International Journal of Materials and Product Technology, 2011, V. 40, No 12, pp. 92-119. DOI: 10.1504/IJMPT.2011.037208.

10. Javaheri, V., Porter, D., Kuokkala, V. T., Slurry erosion of steel-Review of tests, mechanisms and materials, Wear, 2018, Vol. 408-409, pp. 248-273. DOI: 10.1016/j.wear.2018.05.010.

11. Evans, A., Eroziya [Erosion], Moscow: Mir, 1982.

12. Varga, M., High temperature abrasive wear of metallic materials, Wear, 2017, V. 376-377, Part A, pp. 443-451. DOI: 10.1016/j.wear.2016.12.042.

13. Sokolov, G.N., Lysak, V.I., Naplavka iznosostojkih splavov na pressovye shtampy i instrument dlya goryachego deformirovaniya stalej [Surfacing of wear-resistant alloys on press dies and tools for hot deformation of steels], Volgograd: VolgGTU, 2005.

14. Priyatkin, D.V., Artemiev, A.A., Lysak, V.I., Loiko, P.V., Analiz naplavochnyh splavov dlya raboty v usloviyah gazoabrazivnogo iznashivaniya pri povyshennyh temperaturah [Analysis of hardfacing alloys for work in conditions of gas-abrasive wear at elevated temperatures], Izvestiya Volgogradskogo gosudarstvennogo tekhnicheskogo universiteta, 2020, No 10, pp. 49-55.

15. Danilchenko, B.V., Vybor iznosostoikogo naplavlennogo metalla dlya raboty v usloviyakh abrazivnogo iznashivaniya [Selection of wear-resistant weld metal for abrasive wear conditions], Svarochnoe proizvodstvo, 1992, No 5, pp. 31-33.

16. Sokolov, G.N., Artemyev, A.A., Zorin, I.V., Lysak V.I., Litvinenko-Arkov V.B., Diagnostika iznosostoikosti naplavlennogo metalla metodom sklerometrii [Diagnosis of wear resistance of deposited metal by sclerometry], Svarka i diagnostika, 2012, No 2. pp. 34-39.

17. Artemyev, A.A., Sokolov, G.N., Zorin, I.V., Lysak, V.I., Rykov, M.A., Krutenko, A.V., Shnipko, M.V., Metodika ispytanij naplavlennogo metalla na gazoabrazivnoe iznashivanie [Test procedure for deposited metal for gas-abrasive wear], Izvestiya Volgogradskogo gosudarstvennogo tekhnicheskogo universiteta, 2018, No. 3, pp. 112-116.

18. Lin, C.M., Chang, C.M., Chen, J.H., Hsieh, C.C., Wu, W., Microstructure and wear characteristics of high-carbon Cr-based alloy claddings formed by gas tungsten arc welding (GTAW), Surface and Coatings Technology, 2010, V. 205., No 7., pp. 2590-2596. DOI: 10.1016/j.surfcoat.2010.10.004.

19. Sun, S., Fu, H., Ping, X., Guo, X., Lin, J., Lei, Y., Zhou, J., Formation mechanism and mechanical properties of titanium-doped NbC reinforced Ni-based composite coatings, Applied Surface Science, 2019, V. 476., pp. 914-927. DOI: 10.1016/j.apsusc.2019.01.171.

20. Vorobiov, Y.P., Karbidy v stalyah [Carbides in steels], Izvestiya Chelyabinskogo nauchnogo centra, 2004, No 4, pp. 34-60.

21. Zhao, C., Xing, X., Guo, J., Shi, Z., Zhou, Y., Ren, X., Yang, Q., Microstructure and wear resistance of (Nb, Ti) C carbide reinforced Fe matrix coating with different Ti contents and interfacial properties of (Nb, Ti) C/a-Fe, Applied Surface Science, 2019, V. 494, pp. 600-609. DOI: 10.1016/j.ap-susc.2019.07.209.

22. Meskin, V.S., Osnovy legirovaniya stali [Basics of steel alloying], Moscow: Metallurgizdat, 1959.

23. Fizicheskoe metallovedenie: Fazovye prevrashcheniya v metallah i splavah i splavy s osobymi fizicheskimi svojstvami [Physical metal science: Phase transformations in metals and alloys and alloys with special physical properties], Moscow: Metallurguya, 1987, V. 2.

24. Wang, X.H., Han, F., Liu, X.M., Qu, S.Y., Zou, Z.D., Effect of molybdenum on the microstructure and wear resistance of Fe-based hardfacing coatings, Materials Science and Engineering: A., 2008, V. 489, No. 1-2, pp. 193-200. DOI: 10.1016/j.msea.2007.12.020.

25. Ivanko, A.A., Tverdost [Hardness], Kiev: Naukova dumka, 1968.