Published 4 issues per year
ISSN Print: 1093-3611
ISSN Online: 1940-4360
Indexed in
TREATMENT OF SILUMIN SURFACE BY A MODULATED SUBMILLISECOND ELECTRON BEAM
ABSTRACT
Hypereutectic silumin (AlSi20) was exposed to a submillisecond intense electron beam with current modulation on the SOLO plasma-cathode electron source. The beam current was modulated so that the AlSi20 surface was first heated to melting for 200 μs and then kept at 600°C for 400 and 800 μs. After such modulated irradiation, the alloy was analyzed to assess its strength, wear resistance, structure, and phase state. The analysis shows that the longer the alloy is kept at 600°C, the higher the alloy microhardness and wear resistance. After modulated irradiation with 600°C kept for 800 μs, the microhardness of AlSi20 increases 2.2 times, and its wear resistance increases 3.7 times. Within a depth of up to 60 μm, the surface structure of AlSi20 irradiated in this mode is composed of rapidly solidified cells, and likely, it is this cellular structure which is responsible for the increase in the mechanical and tribological properties of the alloy.
-
Akhmadeev, Yu.H., Grigoriev, S.V., Koval, N.N., and Schanin, P.M., Plasma Sources Based on a Low-Pressure Arc Discharge, Laser Part. Beams, vol. 21, pp. 249-254, 2003.
-
Cherenda, N., Laskovnev, A.P., Uglov, V., Amyaga, J.V., Gusakova, S.V., Volochko, A.T., Astashynski, V., and Kuzmicki, A.M., Structure of Silumin Surface Layer Modified by Compression Plasma Flow, 2010. DOI: 10.13140/2.1.5000.0327. DOI: 10.13140/2.1.5000.0327
-
Devyatkov, V.N., Ivanov, Yu.F., Krysina, O.V., Koval, N.N., Petrikova, E.A., and Shugurov, V.V., Equipment and Processes of Vacuum Electron-Ion Plasma Surface Engineering, Vacuum, vol. 143, pp. 464-472, 2017.
-
Gromov, V.E., Ivanov, Yu.F., Zagulyaev, D.V., Tolkachev, O.S., Petrikova, E.A., and Konovalov, V., A Study on Changes in the Properties of Silumin Surface Layers Modified by Yttrium Oxide, IOP Conf. Ser.: Mater. Sci. Eng., vol. 411, no. 1, Article ID 012023, 2018.
-
Gromov, V.E., Ivanov, Yu.F., Vorobiev, S.V., and Konovalov, S.V., Fatigue of Steels Modified by High Intensity Electron Beams, London: Cambridge, 2015.
-
Hegde, S. and Prabhu, K.N., Modification of Eutectic Silicon in Al-Si Alloys, J. Mater. Sci., vol. 43, pp. 3009-3027, 2008.
-
Ivanov, Y.F., Aksenova, K.V., Gromov, V.E., Konovalov, S.V., and Petrikova, E.A., The Increase in Eutectic Silumin Fatigue Life Caused by Electron Beam Processing, Izv. Vyssh. Uchebn. Zaved., Tsvet. Metallurg, vol. 2, pp. 72-80, 2016.
-
Ivanov, Y.F., Gromov, V.E., Konovalov, S.V., Zagulyaev, D.V., Petrikova, E.A., and Semin, A.P., Modification of Structure and Surface Properties of Hypoeutectic Silumin by Intense Pulse Electron Beams, Usp Fiz Met, vol. 19, pp. 195-222, 2018.
-
Ivanov, Yu.F., Gromov, V.E., Zagulyaev, D.V., Konovalov, S.V., Semin, A.P., and Rubannikova, Yu.A., Formation and Evolution of Structure and Phase Composition of Hypoeutectoid Silumin on Electron Beam Processing, J. Surf. Invest.:X-Ray Synchrotron Neutron Technol., vol. 13, pp. 809-813, 2019.
-
Koval, N.N., Devyatkov, V.N., and Vorobyev, M.S., Electron Sources with Plasma Grid Emitters: Progress and Prospects, Russ. Phys. J., vol. 63, no. 10, pp. 1651-1660, 2021.
-
Koval, N.N., Grigoryev, S.V., Devyatkov, V.N., Teresov, A.D., and Schanin, P.M., Effect of Intensified Emission during the Generation of a Submillisecond Low-Energy Electron Beam in a Plasma-Cathode Diode, IEEE Trans. Plasma Sci., vol. 37, no. 10, pp. 1890-1896, 2009.
-
Liu, Z. and Xie, M., Hypereutectic Al-Si-Mg In Situ Composite Prepared by Melt Superheating, Adv. Mater. Res., vols. 194-196, pp. 113-116, 2011.
-
Liu, Z., Xie, M., and Liu, X.M., Microstructure and Properties of In Situ Al-Si-Mg2Si Composite Prepared by Melt Superheating, Appl. Mech. Mater., vols. 52-54, pp. 750-754, 2011.
-
Raharjo, P., Wada, H., Nomura, Y., et al., Abstracts of Papers, Proc. 6th Int. Conf. on Modification of Materials with Particle Beams and Plasma Flows, Tomsk, Russia, p. 679, 2002.
-
Rotshtein, V., Ivanov, Yu., and Markov, A., Surface Treatment of Materials with Low-Energy, High-Current Electron Beams, in Materials Surface Processing by Directed Energy Techniques, Y. Pauleau, Ed., Amsterdam: Elsevier, 2006.
-
Rygina, M.E., Ivanov, Y.F., Lasconev, A.P., Teresov, A.D., Cherenda, N.N., Uglov, V.V., Petricova, E.A., and Astashinskay, M.V., Modification of the Sample's Surface of Hypereutectic Silumin by Pulsed Electron Beam, IOP Conf. Ser.: Mater. Sci. Eng., vol. 124, no. 1, Article ID 012138, 2016.
-
Sigworth, G., Campbell, J., and Jorstad, J., The Modification of Al-Si Casting Alloys: Important Practical and Theoretical Aspects, Int. J. Met., vol. 3, pp. 65-78, 2009.
-
Vorobyov, M.S. and Kovalsky, S.S., Simulation of Electron Beam Generation with a Constant, Rising and Falling Beam Power during Its Pulse, J. Phys.: Conf. Ser., vol. 1393, Article ID 012035, 2019.
-
Vorobyov, M.S., Koval, N.N., Moskvin, P.V., Teresov, A.D., Doroshkevich, S.Yu., Yakovlev, V. V., and Shin, V.I., Electron Beam Generation with Variable Current Amplitude during Its Pulse in a Source with a Grid Plasma Cathode, J. Phys.: Conf. Ser., vol. 1393, Article ID 012064, 2019.
-
Vorobyov, M., Koval, T., Shin, V., Moskvin, P., Tran, M.K.A., Koval, N., Ashurova, K., Doroshkevich, S., and Torba, M., Controlling the Specimen Surface Temperature during Irradiation With a Submillisecond Electron Beam Produced by a Plasma-Cathode Electron Source, IEEE Trans. Plasma Sci., vol. 49, no. 9, pp. 2550-2553, 2021.
-
Vorobyov, M.S., Moskvin, P.V., Shin, V.I., Koval, N.N., Ashurova, K.T., Doroshkevich, S.Yu., Devyatkov, V.N., Torba, M.S., and Levanisov, V.A., Dynamic Power Control of a Submillisecond Pulsed Megawatt Electron Beam in a Source with a Plasma Cathode, Tech. Phys. Lett., vol. 47, no. 5, pp. 515-518, 2021.
-
Zagulyaev, D., Konovalov, S., Gromov, V., Glezer, A., Ivanov, Y., and Sundeev, R., Structure and Properties Changes of Al-Si Alloy Treated by Pulsed Electron Beam, Mater. Lett., vol. 229, pp. 377-380, 2018.
-
Zaguliaev, D., Konovalov, S., Ivanov, Y., Gromov, V., and Petrikova. E., Microstructure and Mechanical Properties of Doped and Electron-Beam Treated Surface of Hypereutectic Al-11.1% Si Alloy, J. Mater. Res. Technol., vol. 8, pp. 3835-3842, 2019.