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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 Print: 1093-3611
ISSN Online: 1940-4360

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

DOI: 10.1615/HighTempMatProc.2015013772
pages 181-186

TRANSFORMATIONS OF ARMCO IRON SURFACE ON THERMOKINETIC EXPOSURE TO COMPRESSION PLASMA FLOWS

Valiantsin V. Astashynski
Research Laboratory, Department of Solid State Physics, Belarusian State University, 4 Nezavisimost Ave, Minsk, 220030, Belarus
Iryna N. Rumiantseva
Physical Technical Institute, National Academy of Sciences of Belarus, 10, Kuprevich St., Minsk, 220141, Belarus

ABSTRACT

Structural and phase changes caused in Armco iron by compression streams are studied. It has been shown that on hydrogen embedding into the surface layer of a sample to a depth not exceeding 0.5 mm, the processing in this mode can he regarded as the thermal effect of plasma flow on surface layers thicker than 1 µm. As a result of the plasma flow treatment, the near surface layers are formed during rapid solidification from a melt. An increase in microhardness from 3.5 ± 0.2 GPa to 5.2 ± 0.6 GPa was observed.


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