Tula State University (Tula, Russia):

Fomicheva N. B., Cand. Eng., Associate Prof., Chair of Metal Physics and Metal Science
Nechaev L. M., Cand, Phys.-Math. Sciences, Prof., Chair of Theoretical Mechanics
Markova E. V., Cand. Eng., Associate Prof., Chair of Machinebuilding Technology, e-mail: marta06@yandex.ru

The paper studies the effects of alloying elements on the structure and properties of Fe–Cr–Ni and Fe–Co–Ni facing materials used for plasma powder deposition. Silicon has been selected as an alloying element since it improves alloy hardness and wear resistance. The base metals are Fe–Cr–Ni and Fe–Co–Ni powder alloys being martensite-ageing sparingly alloyed materials. The investigation has identified the facing layer structure properties with finely crystalline dendrite structure; the effects of silicon on the deposit metal structure formation have been studied. It is shown that silicon has influence on crystallization structure formation through forming of silicon oxide inclusions. The phase composition features for silicon alloyed metals have been identified and the positive effects of silicon on facing material’s mechanical properties have been estimated.

1. Feldgandler E. G., Savkina L. Ya. Alloying eff ect on marging steels reinforcement in the Fe–Cr–Ni and Fe–Cr–Co systems. Metallovedenie i termicheskaya obrabotka metallov. 1985. No. 9. pp. 30–35.
2. Apaev B. A., Madyanov S. A., Voronenko B. N. Investigation of chemical microinhomogeneity of solid solutions of chromium and nickel in iron. Fizika i elektronika tverdogo tela. 1981. Iss. IV. pp. 64–70.
3. Chernyavskaya S. G. et al. Peculiarities of crystallization of Fe–Cr–Ni–C steels. Special steels and alloys. Moscow : Metallurgiya, 1973. Iss. 2. pp. 75–80.
4. Grinberg E. M., Markova E. V., Fomicheva N. B. Influence of silicon and manganese content on formation of structure and properties of corrosion-resistant steels. Materials of the V International conference “Deformation and destruction of materials and nanomaterials”, 26–29 November 2013. Moscow : IMET RAN, 2013. pp. 305–306.
5. Losev A. S., Eremin E. N., Rumyantsev G. P. Analysis of thermal stability of the deposited marging metal with composite structure. Omskiy nauchnyy vestnik. 2011. No. 2. pp. 94–99.
6. Tarasenko L. V., Unichkova M. V. Corrosion properties of marging steels with various types of reinforcement after the double aging. Nauka i obrazovanie. Nauchnoe izdanie MGTU imeni Baumana. 2014. No. 3. pp. 329–335.
7. A. Hasui, O. Morigaki. Surfacing and spraying. Translated from Japaneese by V. N. Popov. Ed.: V. S. Stepin, N. G. Shesterkin. Moscow : Mashinostroenie, 1985. 240 p.
8. Gladkiy P. V., Perepletchikov E. F., Ryabtsev I. A. Plasma surfacing. Kiev : Ekotekhnologiya, 2007. 292 p.
9. Zuchowski R. S., Culbertson R. P. Plasma arc weld surfacing. Welding Journal. 1962. Vol. 41, No. 6. pp. 548–555.
10. Pampillo C. A., Paxton H. W. The Effect of Reverted Austenite on the Mechanical Properties and Toughness of 12 Ni and 18 Ni Maraging Steels. Metallurgical Transactions. 1972. Vol. 3, No. 11. pp. 2895–2903.
11. Radchenko M. V., Smirnov A. N., Knyazkov K. V., Knyazkov V. L., Kozlov E. V. Increasing of plasma-powder coatings properties by modifying with nanosized particles. Polzunovskiy Vestnik. 2012. No. 1/1. pp. 127–130.
12. Smars Е. Backstrom. Gas-metal-plasma arc welding, a new method for weld cladding. Exploiting Welding in Production Technology. Abington 1975. Vol. I. pp. 179–187.
13. Swarf J. D. Plasma-MIG suited to cladding oil delivery system. Welding and Metal Fabrication. 1982. Vol. 50, No. 10. pp. 477–480.
14. Markova E. V. Effect of non-metallic inclusions on the process of destruction of corrosion-resistant steel 09Kh16N4BL. The XIII International scientific and technical seminar school for young metal science investigators in the Urals : the II International scientific school for youngsters “Materials science and metal physics of light alloys”. Ekaterinburg : UrFU, 2012. pp. 18–19.