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High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes
SJR: 0.19 SNIP: 0.341 CiteScore™: 0.43

ISSN Print: 1093-3611
ISSN Online: 1940-4360

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

DOI: 10.1615/HighTempMatProc.v8.i4.100
pages 605-615

COMPRESSION PLASMA FLOW INTERRACTION WITH TITANIUM-ON-STEEL SYSTEM: STRUCTURE AND MECHANICAL PROPERTIES

Vladimir V. Uglov
Belarusian State University, 4 Nezavisimost Ave., Minsk, 220030, Belarus; National Research Tomsk Polytechnic University, 2a Lenin Ave., Tomsk, 634028, Russia
V. M. Anishchik
Dpt. of Solid State Physics - Belarusian State University, 4, F.Nezavisimosti ave., 220030 Minsk, Belarus
Nikolai N. Cherenda
Belarusian State University, 4 Nezavisimost Ave., Minsk, 220030, Belarus; National Research Tomsk State University, 2a Lenin Ave., Tomsk, 634028, Russia
A. K. Stalmashonak
Belarusian State University, 4, F.Nezavisimosti ave., 220030 Minsk, Belarus
V. M. Astashinski
Institute of Mathematics, National Academy of Sciences of Belarus, Minsk, Belarus
A. M. Kuzmitski
A. V. Luikov Heat and Mass Transfer Institute, National Academy of Sciences of Belarus, 15, P. Brovki Str, Minsk 220072, Belarus
A. V. Punko
Belarusian State University of Informatics and Radioelectronics, 6, P. Brovki Str., Minsk, 220027 Belarus

ABSTRACT

The influence of compressive plasma flow (CPF) treatment on the structure and mechanical properties of titanium-on-steel system is studied. The modification is due to the melting of the material by a nitrogen plasma flow with an energy density ∼ 1,3·109 W/m2 and pulse duration ∼ 100 μs and the subsequent fast resolidification accompanied by fast diffusion of coating components into the substrate. The structural-phase state and element structure are analyzed by X-Ray diffraction method (XRD) and scanning electron microscopy (SEM). As a result of the treatment, the formation of iron-titanium solid solution and titanium nitride is observed in the modified layer ∼ 15 μm in thickness. Phase and structural changes result in the increase in microhardness of the treated system two times more as the microhardness of the initial state of carbon steel used as a base material. The model of impurity diffusion in terms of temperature and pressure gradients which takes into account the acceleration of diffusion transport due to liquid phase formation during the melting is suggested.