MECHANICAL PROPERTIES AND STRUCTURE OF A HYPEREUTECTIC SILUMIN SUBJECTED TO ELECTRON-ION-PLASMA TREATMENT

E.A. Petrikova, A.D. Teresov, M.E. Rygina

Institute of high current electronics SB RAS, Tomsk, Russia

Electron-ion-plasma treatment of hypereutectic silumin (18–24 % Si) composition was carried out. The formation of a submicro- and nanocrystalline structure in the surface layer was determined. This is due to the ultrahigh (up to 108 K / s) cooling rate of the molten layer realized by irradiation with a pulsed intense electron beam. It was found that modifying the surface layer of silumin leads to an increase in its hardness by 5 times and wear resistance by 2–2.5 times at the optimum irradiation regime. The physical mechanisms responsible for this effect was revealed.
Keywords: hypereutectic silumin, modification, intense pulsed electron beam, structure, hardness, wear resistance

E-mail: elizmarkova@yahoo.com

1. Stroganov G. B., Rotenberg V. A., Gershman G. B. Splavy aluminiya s kremniem [Aluminum alloys with silicon]. Moscow, Metallurgia, 1977, 272 p. (in Russian)
2. Mondol’fo L. F. Struktura I svoystva aluminievyh splavov [Structure and properties of aluminum alloys]. Moscow, Metallurgiya, 1979. (in Russian)
3. Dobatkin V. I., Eskin G. I., Metallurgiya aluminievyh splavov [Metallurgy of aluminum alloys]. Moscow, Nauka, 1985. (in Russian)
4. Altman M. B., Eskin G. I., Gotzev A. S. Legirovanie I obrabotka legkih splavov [Alloying and processing of light alloys]. Moscow, Nauka, 1981. (in Russian)
5. Korzhavina O. A., Brodova I. G., Nikitin V. I. Rasplavy (1991) // №1. s.10–17. (in Russian)
6. Eskin D. G, Kharakterova M. L., Eskin G. I., Pimenov Y. P. Struktura I phasovy sostav zaevtekticheskih siluminov, prednaznachennyh dlya deformirovaniya// Metally, 1997, no. 2. pp. 91–98. (in Russian)
7. Galdin N. M., Chernega D. F., Ivanchuk D. F. Tsvetnoe litie: spravochnik. Moscow, Mashinostroenie, 1989, 529 p. (in Russian)
8. Modifikatsiya struktury I svoystv evtekticheskogo silumina electronno-ionno-plasmennoy obrabotkoy / Laskovnev A.P., Minsk, izdatel’skiy dom “Belorusskaya nauka”, 2013, 289 p. (in Russian)
9. Ivanov Yu. F., Laskovnev A. P., Teresov A. D., Cherenda N. N., Uglov V. V., Petrikova E. A., Astashynskaya M. V., Koval N. N. (2015) Modification of hypereutectic silumin surface layer by a high-intensity pulse electron beam, High Temperature Material Processes 19(1), pp. 85–91.
10. Ivanov Yu., Krysina О., Rygina M., Petrikova E., Teresov A., Shugurov V., Ivanova O., Ikonnikova I. (2014) Combined modification of aluminum by electron–ion-plasma methods, High Temperature Material Processes 18(4), pp. 311–317.
11. Koval’ N. N., Ivanov Yu. F.// Izvestiya VUZov Fizika, no. 5, pp. 60–70, 2008. (in Russian)


CITATION TEMPLATE:
Petrikova E. A., Teresov A. D., Rygina M. E. Mekhanicheskie svojstva i struktura zaehvtekticheskogo silumina, podvergnutogo ehlektronno-ionno-plazmennoj obrabotke [Mechanical properties and structure of a hypereutectic silumin subjected to electron-ion-plasma treatment] / Sovremennye metody i tekhnologii sozdaniya i obrabotki materialov [Advanced Methods and Technologies of Materials Development and Processing]. Collection of scientific papers, Minsk, FTI NAN Belarusi [PTI NAS Belarus], A.V. Byeli (ed.), 2017, vol. 2, pp. 254–260. (in Russian)

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