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High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes
SJR: 0.137 SNIP: 0.341 CiteScore™: 0.43

ISSN Imprimir: 1093-3611
ISSN On-line: 1940-4360

High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes

DOI: 10.1615/HighTempMatProc.2015015755
pages 29-36

STEEL 45 SURFACE MODIFICATION BY A COMBINED ELECTRON-ION-PLASMA METHOD

Yurii F. Ivanov
Institute of High Current Electronics, Siberian Branch of the Russian Academy of Sciences (IHCE SB RAS), Tomsk, Russia; National Research Tomsk Polytechnic University, Tomsk, Russia
S. Yu. Filimonov
Institute of High-Current Electronics, Sibearian Branch, Russian Academy of Sciences, 2/3 Akademicheskii Ave., Tomsk, 634055, Russia
Yu. A. Denisova
Institute of High-Current Electronics, Sibearian Branch, Russian Academy of Sciences, 2/3 Akademicheskii Ave., Tomsk, 634055, Russia
O. V. Ivanova
Tomsk State University of Architecture and Building, 2 Solyanaya Square, Tomsk, 634003, Russia
I. A. Ikonnikova
Tomsk State University of Architecture and Building, 2 Solyanaya Square, Tomsk, 634003, Russia
E. A. Budovskikh
Sibirian State Industrial University, 42 Kirov St., Novokuznetsk, 654007, Russia
V. E. Gromov
Sibirian State Industrial University, 42 Kirov St., Novokuznetsk, 654007, Russia

RESUMO

The results of investigation of the phase and elemental composition, defect substructure, mechanical and tribological properties of steel 45, subjected to combined treatment, including plasma alloying (formed by means of electric explosion of aluminum foil) and subsequent pulsed electron-beam treatment are presented. The formation of a high-speed cell crystallization structure in the steel surface layer (cell size 300−500 nm) has been found. The formation of iron aluminides Al5Fe2 along the cell borders has also been revealed. It is shown that combined treatment, including electroexplosive alloying by aluminum and subsequent high-intensity electron-beam treatment, leads to a 2.1-fold increase in the steel microhardness and a 4-fold increase in the steel wear resistance compared to the initial material (steel 45 ferrite-pearlite state).


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