Development of wear-resistant coatings for automotive parts after processing in SHS conditions

Abstract

Methods of obtaining chromium-coated coatings are considered and technology for the formation of boron, silicon and titanium protected layers on steels under conditions of self-propagating high-temperature synthesis is presented. Using the methods of mathematical modeling, when obtaining wear-resistant coatings on machine parts in conditions of self-propagating high-temperature synthesis, optimal compositions of SHS mixtures have been developed. When tested in sliding friction conditions, the best abrasion resistance, among the coatings under consideration, are chromoaluminium-coated coatings. Their wear resistance is 4.8-5 times higher than in uncoated samples, chromoaluminosilicated and chromoalumotated in 2.1-3.5. The gas-transport method of coating with the help of SHS makes it possible to obtain steel 50 and U8A with increased physical and mechanical properties, without requiring high energy costs and time.

Bibliography

1. Bekkert, M. (1979). Spravochnik po metallograficheskomu travleniju [Handbook of metallographic etching]. Moscow: Metallurgija Publ.

2. Kostogorov, E.P. (1992). Transport reactions SHS combustion. Int. Journal of SHS, 1(1), 33-39.

3. Lakhtin, Yu. M. (1993). Metallurgy and thermal processing of metals. Moscow: Metallurgy.

4. Merzhanov, A.G., & Rogachev, A.S. (2003). Phase and structure transformations during SHS. Adv. Sci. Techn., 31, 271-282.

5. Sereda, B., & Sereda D. (2011). Kinetiks formation of aluminized multifunctional coating on steel in SHS condition. Material science and technology, 1667-1671.

6. Sereda, B., & Sereda, D. (2014). Aluminized multifunctional coating on steel in SHS condition. Material science and technology, 482-486.

7. Sereda, B., & Sereda, D. (2015a). Modeling deformation in material processing and laws of phasic by SHS pressing intermetallics alloys. Material science and technology, 611-617.

8. Sereda, B., & Sereda, D. (2016a). Corrosion resistance and mechanical properties zinc coating sheet steels, received in conditions of self-propagating high temperature synthesis. Material science and technology, 825-829.

9. Sereda, B., & Sereda, D. (2016b). Development of protective coatings formulations based on boron for units operating at high temperatures in metallurgy. Material science and technology, 931-934.

10. Sereda, B., Kryglyak, I., & Sereda, D. (2017a). Production of highly effective SHS coatings operating in oxidizing and corrosive environments. Material science and technology, 424-429.

11. Sereda, B., Kryglyak, I., Kovalenko, A., & Sereda, D. (2017b). Simulation and modeling of metallurgical phenomena produced on pressing in SHS-condition. Material science and technology, 727-732.

12. Sereda, B., Sereda, D., & Sereda, I. (2017c). Establishment of the relationship between the microstructure characteristics and the heat resistance of silicate coatings obtained under SHS conditions. Material science and technology, 412-416.

13. Sereda, B.P., Kalinina, N.E., & Krugliak, I.V. (2004). Surface reinforcement of materials. Monograph. Zaporozhye: RVB ZDIA.

14. Sereda, D. (2017c). Obtaining of wear-resistant carbide coatings on high-carbon steels under SHS conditions. Material science and technology, 417-420.

15. Sereda, В., & Sereda, D. (2015b). Advanced chromoaluminizing coatings for wear and heat-resistance on composite materials under SHS. Material science and technology, 229-232.

16. Shefer, G. (1964). Himicheskie transportnye reakcii [Chemical transport reactions]. Moscow: Mir Publ.

17. Sinjarev, G.B., Vatolin, N.A., Trusov, B.G., Moiseev, R.K. (1982). Primenenie JeVM dlja termodinamicheskih raschetov metallurgicheskih processov [Computer application for thermodynamic calculations of metallurgical processes]. Moscow: Nauka Publ.

18. Trefilova, N.V. (2014). An analysis of modern methods of application of protective coatings. Modern Science-intensive Technologies, 10, 67.